| PDB | Ligand | Organism | Macromolecule | 
|---|---|---|---|
| 11gs | EAA | Homo sapiens | GLUTATHIONE S-TRANSFERASE | 
| 13gs | SAS | Homo sapiens | GLUTATHIONE S-TRANSFERASE | 
| 1a27 | EST | Homo sapiens | 17-BETA-HYDROXYSTEROID-DEHYDROGENASE | 
| 1a28 | STR | Homo sapiens | PROGESTERONE RECEPTOR | 
| 1a29 | TFP | Bos taurus | CALMODULIN | 
| 1a4g | ZMR | Influenza B virus | NEURAMINIDASE | 
| 1a4l | DCF | Mus musculus | ADENOSINE DEAMINASE | 
| 1a52 | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 1a7y | DVA | Streptomyces antibioticus | ACTINOMYCIN D | 
| 1a8u | BEZ | Kitasatospora aureofaciens | CHLOROPEROXIDASE T | 
| 1acj | THA | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 1acl | DME | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 1aeg | 4AP | Saccharomyces cerevisiae | CYTOCHROME C PEROXIDASE | 
| 1afs | TES | Rattus norvegicus | 3-ALPHA-HYDROXYSTEROID DEHYDROGENASE | 
| 1agm | ACR | Aspergillus awamori | GLUCOAMYLASE-471 | 
| 1aj0 | SAN | Escherichia coli | DIHYDROPTEROATE SYNTHASE | 
| 1aj6 | NOV | Escherichia coli | GYRASE | 
| 1akd | CAM | Pseudomonas putida | CYTOCHROME P450CAM | 
| 1al4 | DVA | Brevibacillus brevis | GRAMICIDIN D | 
| 1alx | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1alz | DVA | Brevibacillus brevis | ILE-GRAMICIDIN C;VAL-GRAMICIDIN A | 
| 1am6 | HAE | Homo sapiens | CARBONIC ANHYDRASE | 
| 1ao8 | MTX | Lactobacillus casei | DIHYDROFOLATE REDUCTASE | 
| 1aq7 | AG2 | Bos taurus;Microcystis aeruginosa | AERUGINOSIN 98-B;TRYPSIN | 
| 1aqb | RTL | Sus scrofa | RETINOL-BINDING PROTEIN | 
| 1aqu | EST | Mus musculus | ESTROGEN SULFOTRANSFERASE | 
| 1av2 | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1avn | HSM | Homo sapiens | CARBONIC ANHYDRASE II | 
| 1ax9 | EDR | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 1axw | MTX | Escherichia coli | THYMIDYLATE SYNTHASE | 
| 1azm | AZM | Homo sapiens | CARBONIC ANHYDRASE I | 
| 1b02 | C2F | Bacillus subtilis | PROTEIN (THYMIDYLATE SYNTHASE) | 
| 1b23 | CYS | Escherichia coli;Thermus aquaticus | CYSTEINYL TRNA;ELONGATION FACTOR TU | 
| 1b2h | ACT | ;Salmonella enterica | LYS-ORN-LYS;PERIPLASMIC OLIGOPEPTIDE-BINDING PROTEIN | 
| 1b2i | AMH | Homo sapiens | PROTEIN (PLASMINOGEN) | 
| 1bcu | PRL | Homo sapiens | ALPHA-THROMBIN | 
| 1bdw | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1bkf | FK5 | Homo sapiens | FK506 BINDING PROTEIN | 
| 1brp | RTL | Homo sapiens | RETINOL BINDING PROTEIN | 
| 1bsx | T3 | Homo sapiens | PROTEIN (THYROID HORMONE RECEPTOR BETA) | 
| 1bu5 | RBF | Desulfovibrio vulgaris | PROTEIN (FLAVODOXIN) | 
| 1bx4 | ADN | Homo sapiens | PROTEIN (ADENOSINE KINASE) | 
| 1bzf | TMQ | Lactobacillus casei | DIHYDROFOLATE REDUCTASE | 
| 1bzm | MZM | Homo sapiens | CARBONIC ANHYDRASE I | 
| 1c3s | SHH | Aquifex aeolicus | HDLP (HISTONE DEACETYLASE-LIKE PROTEIN) | 
| 1c4d | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1c6y | MK1 | Human immunodeficiency virus 1 | PROTEIN (PROTEASE) | 
| 1c6z | ROC | Human immunodeficiency virus 1 | PROTEIN (PROTEASE) | 
| 1c8l | CFF | Oryctolagus cuniculus | PROTEIN (GLYCOGEN PHOSPHORYLASE) | 
| 1c9h | RAP | Homo sapiens | FKBP12.6 | 
| 1c9s | TRP | Geobacillus stearothermophilus | TRP RNA-BINDING ATTENUATION PROTEIN | 
| 1cbr | REA | Mus musculus | CELLULAR RETINOIC ACID BINDING PROTEIN TYPE I | 
| 1cbs | REA | Homo sapiens | CELLULAR RETINOIC ACID BINDING PROTEIN TYPEII | 
| 1cd2 | FOL | Pneumocystis carinii | DIHYDROFOLATE REDUCTASE | 
| 1cea | ACA | Homo sapiens | PLASMINOGEN | 
| 1ceb | AMH | Homo sapiens | PLASMINOGEN | 
| 1cet | CLQ | Plasmodium falciparum | PROTEIN (L-LACTATE DEHYDROGENASE) | 
| 1cil | ETS | Homo sapiens | CARBONIC ANHYDRASE II | 
| 1cla | CLM | Escherichia coli | TYPE III CHLORAMPHENICOL ACETYLTRANSFERASE | 
| 1cma | SAM | Escherichia coli | PROTEIN (MET REPRESSOR) | 
| 1cmc | SAM | Escherichia coli | MET REPRESSOR | 
| 1cqe | FLP | Ovis aries | PROTEIN (PROSTAGLANDIN H2 SYNTHASE-1) | 
| 1cqp | 803 | Homo sapiens | ANTIGEN CD11A (P180) | 
| 1crb | RTL | Rattus rattus | CELLULAR RETINOL BINDING PROTEIN | 
| 1ctr | TFP | Homo sapiens | CALMODULIN | 
| 1d0v | NIO | Salmonella enterica | NICOTINATEMONONUCLEOTIDE:5,6-DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1d1g | MTX | Thermotoga maritima | DIHYDROFOLATE REDUCTASE | 
| 1d1v | H4B | Bos taurus | BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME | 
| 1d1w | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 1d1x | H4B | Bos taurus | BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEMEDOMAIN | 
| 1d4f | ADN | Rattus norvegicus | S-ADENOSYLHOMOCYSTEINE HYDROLASE | 
| 1d4s | TPV | Human immunodeficiency virus 1 | PROTEIN (HIV-1 PROTEASE) | 
| 1d4y | TPV | Human immunodeficiency virus 1 | PROTEIN (HIV-1 PROTEASE) | 
| 1d8c | SOR | Escherichia coli | MALATE SYNTHASE G | 
| 1db1 | VDX | Homo sapiens | VITAMIN D NUCLEAR RECEPTOR | 
| 1dbb | STR | Mus musculus | IGG1-KAPPA DB3 FAB (HEAVY CHAIN);IGG1-KAPPA DB3 FAB (LIGHT CHAIN) | 
| 1ddr | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1dds | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1ded | QPS | Bacillus sp. 1011 | CYCLODEXTRIN GLUCANOTRANSFERASE | 
| 1df1 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE | 
| 1df7 | MTX | Mycobacterium tuberculosis | DIHYDROFOLATE REDUCTASE | 
| 1dfo | FFO | Escherichia coli | SERINE HYDROXYMETHYLTRANSFERASE | 
| 1dg5 | TOP | Mycobacterium tuberculosis | DIHYDROFOLATE REDUCTASE | 
| 1dgm | ADN | Toxoplasma gondii | ADENOSINE KINASE | 
| 1dhf | FOL | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 1dhi | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1dhj | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1dit | 2PP | ;Homo sapiens | ALPHA-THROMBIN;PEPTIDE INHIBITOR CVS995 | 
| 1djr | BEZ | Escherichia coli | HEAT-LABILE ENTEROTOXIN | 
| 1dls | MTX | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 1dm8 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 1dma | NCA | Pseudomonas aeruginosa | EXOTOXIN A | 
| 1dmi | BHS | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 1dmy | AZM | Mus musculus | MURINE CARBONIC ANHYDRASE V | 
| 1dra | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1drb | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1dre | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1drf | FOL | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 1dsc | DVA | Streptomyces antibioticus | ACTINOMYCIN D | 
| 1dsd | DVA | Streptomyces antibioticus | ACTINOMYCIN D | 
| 1dss | CCS | Panulirus versicolor | D-GLYCERALDEHYDE-3-PHOSPHATE-DEHYDROGENASE | 
| 1dtl | BEP | Gallus gallus | CARDIAC TROPONIN C | 
| 1dvt | FLP | Homo sapiens | TRANSTHYRETIN | 
| 1dvx | DIF | Homo sapiens | TRANSTHYRETIN | 
| 1dwc | MIT | Homo sapiens | ALPHA-THROMBIN (LARGE SUBUNIT) | 
| 1dwx | H4B | Mus musculus | NITRIC OXIDE SYNTHASE | 
| 1dx6 | GNT | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 1dy4 | SNP | Trichoderma reesei | EXOGLUCANASE 1 | 
| 1dy5 | ACT | Bos taurus | RIBONUCLEASE A | 
| 1dyi | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1dyr | TOP | Pneumocystis carinii | DIHYDROFOLATE REDUCTASE | 
| 1dz4 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1dz6 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1dz8 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1dz9 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1dzm | BZM | Sus scrofa | ODORANT-BINDING PROTEIN | 
| 1e06 | IPB | Sus scrofa | ODORANT-BINDING PROTEIN | 
| 1e3v | DXC | Pseudomonas putida | STEROID DELTA-ISOMERASE | 
| 1e6w | EST | Rattus norvegicus | SHORT CHAIN 3-HYDROXYACYL-COA DEHYDROGENASE | 
| 1e71 | ASC | Sinapis alba | MYROSINASE MA1 | 
| 1e72 | ASC | Sinapis alba | MYROSINASE MA1 | 
| 1e73 | ASC | Sinapis alba | MYROSINASE MA1 | 
| 1e7a | PFL | Homo sapiens | SERUM ALBUMIN | 
| 1e7b | HLT | Homo sapiens | SERUM ALBUMIN | 
| 1e7c | HLT | Homo sapiens | SERUM ALBUMIN | 
| 1e7w | MTX | Leishmania major | PTERIDINE REDUCTASE | 
| 1e9l | GCS | Mus musculus | YM1 SECRETORY PROTEIN | 
| 1e9y | HAE | Helicobacter pylori | UREASE SUBUNIT BETA | 
| 1ea1 | TPF | Mycobacterium tuberculosis | CYTOCHROME P450 51-LIKE RV0764C | 
| 1ee2 | CHD | Equus caballus | ALCOHOL DEHYDROGENASE | 
| 1ei6 | PPF | Pseudomonas fluorescens | PHOSPHONOACETATE HYDROLASE | 
| 1eii | RTL | Rattus norvegicus | CELLULAR RETINOL-BINDING PROTEIN II | 
| 1eiz | SAM | Escherichia coli | FTSJ | 
| 1ej0 | SAM | Escherichia coli | FTSJ | 
| 1ekj | ACT | Pisum sativum | BETA-CARBONIC ANHYDRASE | 
| 1ekj | CU | Pisum sativum | BETA-CARBONIC ANHYDRASE | 
| 1epb | 9CR | Rattus norvegicus | EPIDIDYMAL RETINOIC ACID-BINDING PROTEIN | 
| 1eqb | FFO | Escherichia coli | SERINE HYDROXYMETHYLTRANSFERASE | 
| 1eqb | GLY | Escherichia coli | SERINE HYDROXYMETHYLTRANSFERASE | 
| 1eqg | IBP | Ovis aries | PROSTAGLANDIN H2 SYNTHASE-1 | 
| 1eqh | FLP | Ovis aries | PROSTAGLANDIN H2 SYNTHASE-1 | 
| 1equ | EQI | Homo sapiens | PROTEIN (ESTRADIOL 17 BETA-DEHYDROGENASE 1) | 
| 1ere | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 1err | CCS | Homo sapiens | ESTROGEN RECEPTOR | 
| 1err | RAL | Homo sapiens | ESTROGEN RECEPTOR | 
| 1esw | ACR | Thermus aquaticus | AMYLOMALTASE | 
| 1eta | T44 | Homo sapiens | TRANSTHYRETIN | 
| 1etb | T44 | Homo sapiens | TRANSTHYRETIN | 
| 1etr | MIT | Bos taurus | EPSILON-THROMBIN | 
| 1eup | ASD | Saccharopolyspora erythraea | CYTOCHROME P450ERYF | 
| 1eve | E20 | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 1f5l | AMR | Homo sapiens | UROKINASE-TYPE PLASMINOGEN ACTIVATOR | 
| 1f86 | T44 | Homo sapiens | TRANSTHYRETIN THR119MET VARIANT | 
| 1f9g | ASC | Streptococcus pneumoniae | HYALURONATE LYASE | 
| 1fap | RAP | Homo sapiens | FK506-BINDING PROTEIN;FRAP | 
| 1fb7 | ROC | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 1fbm | RTL | Rattus norvegicus | PROTEIN (CARTILAGE OLIGOMERIC MATRIX PROTEIN) | 
| 1fby | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 1fds | EST | Homo sapiens | 17-BETA-HYDROXYSTEROID-DEHYDROGENASE | 
| 1fdt | EST | Homo sapiens | 17-BETA-HYDROXYSTEROID-DEHYDROGENASE | 
| 1fdu | EST | Homo sapiens | 17-BETA-HYDROXYSTEROID DEHYDROGENASE | 
| 1fdw | EST | Homo sapiens | 17-BETA-HYDROXYSTEROID DEHYDROGENASE | 
| 1fe2 | LAX | Ovis aries | PROSTAGLANDIN ENDOPEROXIDE H SYNTHASE-1 | 
| 1fem | REA | Bos taurus | RETINOL BINDING PROTEIN | 
| 1ffy | MRC | Staphylococcus aureus | ISOLEUCYL-TRNA SYNTHETASE | 
| 1fiq | SAL | Bos taurus | XANTHINE OXIDASE | 
| 1fja | DVA | Streptomyces antibioticus | ACTINOMYCIN D | 
| 1fjg | SRY | Thermus thermophilus | 16S RIBOSOMAL RNA;30S RIBOSOMAL PROTEIN S12 | 
| 1fk6 | LNL | Zea mays | NON-SPECIFIC LIPID TRANSFER PROTEIN | 
| 1fk9 | EFZ | Human immunodeficiency virus 1 | HIV-1 RT, A-CHAIN | 
| 1fkb | RAP | Homo sapiens | FK506 BINDING PROTEIN | 
| 1fkf | FK5 | Homo sapiens | FK506 BINDING PROTEIN | 
| 1fkj | FK5 | Homo sapiens | FK506 BINDING PROTEIN | 
| 1fkl | RAP | Bos taurus | FK506 BINDING PROTEIN | 
| 1fko | EFZ | Human immunodeficiency virus 1 | HIV-1 RT, A-CHAIN | 
| 1fkp | NVP | Human immunodeficiency virus 1 | HIV-1 RT, A-CHAIN | 
| 1fm4 | DXC | Betula pendula | MAJOR POLLEN ALLERGEN BET V 1-L | 
| 1fm6 | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 1fm6 | BRL | Homo sapiens | PEROXISOME PROLIFERATOR ACTIVATED RECEPTORGAMMA | 
| 1fm9 | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 1fmj | RTL | Spodoptera frugiperda | RETINOL DEHYDRATASE | 
| 1fml | RTL | Spodoptera frugiperda | RETINOL DEHYDRATASE | 
| 1fmo | ADN | Mus musculus;Oryctolagus cuniculus | CAMP-DEPENDENT PROTEIN KINASE;HEAT STABLE RABBIT SKELETAL MUSCLE INHIBITORPROTEIN | 
| 1fo4 | SAL | Bos taurus | XANTHINE DEHYDROGENASE | 
| 1foh | IPH | Cutaneotrichosporon cutaneum | PHENOL HYDROXYLASE | 
| 1fop | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE | 
| 1fpq | SAM | Medicago sativa | ISOLIQUIRITIGENIN 2'-O-METHYLTRANSFERASE | 
| 1fsl | NIO | Glycine max | LEGHEMOGLOBIN A | 
| 1fwe | HAE | Klebsiella aerogenes | UREASE | 
| 1fxh | PAC | Escherichia coli | PENICILLIN ACYLASE | 
| 1fxv | PNN | Escherichia coli | PENICILLIN ACYLASE | 
| 1g50 | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 1g5y | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 1g60 | SAM | Moraxella bovis | ADENINE-SPECIFIC METHYLTRANSFERASE MBOIIA | 
| 1gah | ACR | Aspergillus awamori | GLUCOAMYLASE-471 | 
| 1geb | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1gfz | CFF | Oryctolagus cuniculus | GLYCOGEN PHOSPHORYLASE | 
| 1ghm | CED | Staphylococcus aureus | BETA-LACTAMASE | 
| 1gm7 | PNN | Escherichia coli | PENICILLIN G ACYLASE ALPHA SUBUNIT;PENICILLIN G ACYLASE BETA SUBUNIT | 
| 1gmk | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1grm | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1gs4 | ZK5 | Homo sapiens | ANDROGEN RECEPTOR | 
| 1gse | EAA | Homo sapiens | GLUTATHIONE TRANSFERASE | 
| 1gsf | EAA | Homo sapiens | GLUTATHIONE TRANSFERASE A1-1 | 
| 1gtb | PZQ | Schistosoma japonicum | GLUTATHIONE S-TRANSFERASE | 
| 1gtf | TRP | Geobacillus stearothermophilus | TRP RNA-BINDING ATTENUATION PROTEIN (TRAP) | 
| 1gti | CCS | Mus musculus | GLUTATHIONE S-TRANSFERASE | 
| 1gtn | TRP | Geobacillus stearothermophilus | TRP RNA-BINDING ATTENUATION PROTEIN | 
| 1gwr | EST | Homo sapiens | OESTROGEN RECEPTOR | 
| 1gx8 | RTL | Bos taurus | BETA-LACTOGLOBULIN | 
| 1gx9 | REA | Bos taurus | BETA-LACTOGLOBULIN | 
| 1gxs | BEZ | Sorghum bicolor | P-(S)-HYDROXYMANDELONITRILE LYASE CHAIN A;P-(S)-HYDROXYMANDELONITRILE LYASE CHAIN B | 
| 1gyx | BEZ | Escherichia coli | HYPOTHETICAL PROTEIN YDCE | 
| 1h1d | SAM | Rattus norvegicus | CATECHOL-O-METHYLTRANSFERASE | 
| 1h4o | BEZ | Homo sapiens | PEROXIREDOXIN 5 | 
| 1h60 | STR | Enterobacter cloacae | PENTAERYTHRITOL TETRANITRATE REDUCTASE | 
| 1h7x | URF | Sus scrofa | DIHYDROPYRIMIDINE DEHYDROGENASE | 
| 1h8s | AIC | Mus musculus | MUTANT AL2 6E7P9G | 
| 1h9z | RWF | Homo sapiens | SERUM ALBUMIN | 
| 1ha2 | SWF | Homo sapiens | SERUM ALBUMIN | 
| 1hbp | RTL | Bos taurus | RETINOL BINDING PROTEIN | 
| 1hd2 | BEZ | Homo sapiens | PEROXIREDOXIN 5 RESIDUES 54-214 | 
| 1hk1 | T44 | Homo sapiens | SERUM ALBUMIN | 
| 1hk2 | T44 | Homo sapiens | SERUM ALBUMIN | 
| 1hk3 | T44 | Homo sapiens | SERUM ALBUMIN | 
| 1hk4 | T44 | Homo sapiens | SERUM ALBUMIN | 
| 1hk5 | T44 | Homo sapiens | SERUM ALBUMIN | 
| 1hmy | SAM | Haemophilus haemolyticus | HAEIII METHYLTRANSFERASE | 
| 1ho5 | ADN | Escherichia coli | 5'-NUCLEOTIDASE | 
| 1hpk | ACA | Homo sapiens | PLASMINOGEN | 
| 1hpv | 478 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 1hrk | CHD | Homo sapiens | FERROCHELATASE | 
| 1hsg | MK1 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 1hsh | MK1 | Human immunodeficiency virus 2 | HIV-II PROTEASE | 
| 1htt | HIS | Escherichia coli | HISTIDYL-TRNA SYNTHETASE | 
| 1hvy | D16 | Homo sapiens | THYMIDYLATE SYNTHASE | 
| 1hwi | 115 | Homo sapiens | HMG-COA REDUCTASE | 
| 1hwk | 117 | Homo sapiens | HMG-COA REDUCTASE | 
| 1hxb | ROC | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 1hxw | RIT | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 1hz4 | BEZ | Escherichia coli | MALT REGULATORY PROTEIN | 
| 1hze | RBF | Escherichia coli | RIBOFLAVIN SYNTHASE ALPHA CHAIN | 
| 1i00 | D16 | Homo sapiens | THYMIDYLATE SYNTHASE | 
| 1i18 | RBF | Escherichia coli | RIBOFLAVIN SYNTHASE ALPHA CHAIN | 
| 1i1e | DM2 | Clostridium botulinum | BOTULINUM NEUROTOXIN TYPE B | 
| 1i2w | CFX | Bacillus licheniformis | BETA-LACTAMASE | 
| 1i3w | DVA | Streptomyces antibioticus | ACTINOMYCIN D | 
| 1i6v | RFP | Thermus aquaticus | DNA-DIRECTED RNA POLYMERASE | 
| 1i7q | BEZ | Serratia marcescens | ANTHRANILATE SYNTHASE | 
| 1i7z | COC | Homo sapiens;Mus musculus | CHIMERA OF IG GAMMA-1 CHAIN: HUMAN CONSTANTREGION AND MOUSE VARIABLE REGION;CHIMERA OF IG KAPPA CHAIN: HUMAN CONSTANTREGION AND MOUSE VARIABLE REGION | 
| 1i9g | SAM | Mycobacterium tuberculosis | HYPOTHETICAL PROTEIN RV2118C | 
| 1i9j | TES | Mus musculus | RECOMBINANT MONOCLONAL ANTI-TESTOSTERONE FABFRAGMENT HEAVY CHAIN;RECOMBINANT MONOCLONAL ANTI-TESTOSTERONE FABFRAGMENT LIGHT CHAIN | 
| 1ia0 | TXL | Sus scrofa | TUBULIN BETA CHAIN | 
| 1ibg | OBN | Mus musculus | IGG2B-KAPPA 40-50 FAB (HEAVY CHAIN);IGG2B-KAPPA 40-50 FAB (LIGHT CHAIN) | 
| 1icr | NIO | Escherichia coli | OXYGEN-INSENSITIVE NAD(P)H NITROREDUCTASE | 
| 1ict | T44 | Homo sapiens | TRANSTHYRETIN | 
| 1icu | NIO | Escherichia coli | OXYGEN-INSENSITIVE NAD(P)H NITROREDUCTASE | 
| 1icv | NIO | Escherichia coli | OXYGEN-INSENSITIVE NAD(P)H NITROREDUCTASE | 
| 1ie4 | T44 | Rattus norvegicus | TRANSTHYRETIN | 
| 1ie9 | VDX | Homo sapiens | VITAMIN D3 RECEPTOR | 
| 1iep | STI | Mus musculus | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE ABL | 
| 1ig0 | VIB | Saccharomyces cerevisiae | THIAMIN PYROPHOSPHOKINASE | 
| 1ig3 | VIB | Mus musculus | THIAMIN PYROPHOSPHOKINASE | 
| 1igj | DGX | Mus musculus | IGG2A-KAPPA 26-10 FAB (HEAVY CHAIN);IGG2A-KAPPA 26-10 FAB (LIGHT CHAIN) | 
| 1igx | EPA | Ovis aries | PROSTAGLANDIN ENDOPEROXIDE H SYNTHASE-1 | 
| 1ihi | IU5 | Homo sapiens | 3-ALPHA-HYDROXYSTEROID DEHYDROGENASE | 
| 1iiu | RTL | Gallus gallus | PLASMA RETINOL-BINDING PROTEIN | 
| 1ike | HSM | Rhodnius prolixus | NITROPHORIN 4 | 
| 1ikv | EFZ | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 1ikw | EFZ | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 1ilp | ACA | Homo sapiens | PROTEIN (INTERLEUKIN-8 PRECURSOR);PROTEIN (INTERLEUKIN-8 RECEPTOR) | 
| 1ilq | ACA | Homo sapiens | INTERLEUKIN-8 PRECURSOR;INTERLEUKIN-8 RECEPTOR A | 
| 1iol | EST | Homo sapiens | ESTROGENIC 17-BETA HYDROXYSTEROIDDEHYDROGENASE | 
| 1isi | NCA | Homo sapiens | BONE MARROW STROMAL CELL ANTIGEN 1 | 
| 1ism | NCA | Homo sapiens | BONE MARROW STROMAL CELL ANTIGEN 1 | 
| 1itu | CIL | Homo sapiens | RENAL DIPEPTIDASE | 
| 1ivv | DAH | Arthrobacter globiformis | AMINE OXIDASE | 
| 1iwh | PEM | Equus caballus | HEMOGLOBIN ALPHA CHAIN | 
| 1iwi | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1iwj | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1j36 | LPR | Drosophila melanogaster | ANGIOTENSIN CONVERTING ENZYME | 
| 1j37 | X8Z | Drosophila melanogaster | ANGIOTENSIN CONVERTING ENZYME | 
| 1j3j | CP6 | Plasmodium falciparum | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 1j78 | VDY | Homo sapiens | VITAMIN D BINDING PROTEIN | 
| 1j7k | ACT | Thermotoga maritima | HOLLIDAY JUNCTION DNA HELICASE RUVB | 
| 1j8u | H4B | Homo sapiens | PHENYLALANINE-4-HYDROXYLASE | 
| 1j96 | TES | Homo sapiens | 3ALPHA-HYDROXYSTEROID DEHYDROGENASE TYPE 3 | 
| 1jb0 | PQN | Synechococcus elongatus | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 1jb0 | PQN | Synechococcus elongatus | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 1jd0 | AZM | Homo sapiens | CARBONIC ANHYDRASE XII | 
| 1jdv | ADN | Sulfolobus solfataricus | 5'-METHYLTHIOADENOSINE PHOSPHORYLASE | 
| 1jff | TA1 | Bos taurus | TUBULIN BETA CHAIN | 
| 1jg2 | ADN | Pyrococcus furiosus | PROTEIN-L-ISOASPARTATE O-METHYLTRANSFERASE | 
| 1jg3 | ADN | Pyrococcus furiosus | PROTEIN-L-ISOASPARTATE O-METHYLTRANSFERASE | 
| 1jg4 | SAM | Pyrococcus furiosus | PROTEIN-L-ISOASPARTATE O-METHYLTRANSFERASE | 
| 1jgl | EST | Mus musculus | IG GAMMA-1-CHAIN;IG KAPPA-CHAIN | 
| 1jgs | SAL | Escherichia coli | MULTIPLE ANTIBIOTIC RESISTANCE PROTEIN MARR | 
| 1jha | NIO | Salmonella enterica | NICOTINATEMONONUCLEOTIDE:5,6-DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1jho | NIO | Salmonella enterica | NICOTINATEMONONUCLEOTIDE:5,6-DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1jhq | NIO | Salmonella enterica | NICOTINATEMONONUCLEOTIDE:5,6-DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1jhr | NIO | Salmonella enterica | NICOTINATEMONONUCLEOTIDE:5,6-DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1jhv | NIO | Salmonella enterica | NICOTINATEMONONUCLEOTIDE:5,6-DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1jhy | NIO | Salmonella enterica | NICOTINATEMONONUCLEOTIDE:5,6-DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1jin | KTN | Saccharopolyspora erythraea | CYTOCHROME P450 107A1 | 
| 1jip | KTN | Saccharopolyspora erythraea | CYTOCHROME P450 107A1 | 
| 1jkh | EFZ | Human immunodeficiency virus 1 | HIV-1 RT, A-CHAIN;HIV-1 RT, B-CHAIN | 
| 1jlb | NVP | Human immunodeficiency virus 1 | HIV-1 RT A-CHAIN | 
| 1jlf | NVP | Human immunodeficiency virus 1 | HIV-1 RT A-CHAIN;HIV-1 RT B-CHAIN | 
| 1jnn | EST | Mus musculus | MONOCLONAL ANTI-ESTRADIOL 17E12E5IMMUNOGLOBULIN GAMMA-1 CHAIN;MONOCLONAL ANTI-ESTRADIOL 17E12E5IMMUNOGLOBULIN KAPPA CHAIN | 
| 1jno | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1jo3 | DVA | Brevibacillus brevis | GRAMICIDIN B | 
| 1jo4 | DVA | Brevibacillus brevis | GRAMICIDIN C | 
| 1jol | FFO | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1jom | FFO | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1jqd | HSM | Homo sapiens | HISTAMINE N-METHYLTRANSFERASE | 
| 1jqe | QUN | Homo sapiens | HISTAMINE N-METHYLTRANSFERASE | 
| 1jr1 | MOA | Cricetulus griseus | INOSINE-5'-MONOPHOSPHATE DEHYDROGENASE 2 | 
| 1js3 | 142 | Sus scrofa | DOPA DECARBOXYLASE | 
| 1jtv | TES | Homo sapiens | 17 BETA-HYDROXYSTEROID DEHYDROGENASE TYPE 1 | 
| 1jtx | CVI | Staphylococcus aureus | HYPOTHETICAL TRANSCRIPTIONAL REGULATOR INQACA 5'REGION | 
| 1ju4 | BEZ | Rhodococcus sp. MB1 | COCAINE ESTERASE | 
| 1ju6 | LYA | Homo sapiens | THYMIDYLATE SYNTHASE | 
| 1juj | LYA | Homo sapiens | THYMIDYLATE SYNTHASE | 
| 1jwj | H4B | Mus musculus | NITRIC OXIDE SYNTHASE | 
| 1jzs | MRC | Thermus thermophilus | ISOLEUCYL-TRNA SYNTHETASE | 
| 1k1y | ACR | Thermococcus litoralis | 4-ALPHA-GLUCANOTRANSFERASE | 
| 1k2r | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 1k2s | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 1k2t | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 1k2u | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 1k4t | TTC | ;Homo sapiens | DNA TOPOISOMERASE I | 
| 1k5q | PAC | Escherichia coli | PENICILLIN G ACYLASE ALPHA SUBUNIT;PENICILLIN G ACYLASE BETA SUBUNIT | 
| 1k6c | MK1 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 1k74 | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 1kar | HSM | Escherichia coli | HISTIDINOL DEHYDROGENASE | 
| 1kb9 | PCF | Saccharomyces cerevisiae | CYTOCHROME B;CYTOCHROME C1, HEME PROTEIN;UBIQUINOL-CYTOCHROME C REDUCTASE COMPLEX COREPROTEIN I;UBIQUINOL-CYTOCHROME C REDUCTASE IRON-SULFURSUBUNIT | 
| 1kf6 | ACT | Escherichia coli | FUMARATE REDUCTASE FLAVOPROTEIN | 
| 1kf6 | ACT | Escherichia coli | FUMARATE REDUCTASE FLAVOPROTEIN;FUMARATE REDUCTASE IRON-SULFUR PROTEIN | 
| 1kgl | RTL | Rattus norvegicus | CELLULAR RETINOL-BINDING PROTEIN TYPE I | 
| 1ki2 | GA2 | Human alphaherpesvirus 1 | THYMIDINE KINASE | 
| 1ki3 | PE2 | Human alphaherpesvirus 1 | THYMIDINE KINASE | 
| 1ki7 | ID2 | Human alphaherpesvirus 1 | THYMIDINE KINASE | 
| 1kia | ACT | Rattus norvegicus | GLYCINE N-METHYLTRANSFERASE | 
| 1kia | SAM | Rattus norvegicus | GLYCINE N-METHYLTRANSFERASE | 
| 1kif | BEZ | Sus scrofa | D-AMINO ACID OXIDASE | 
| 1kij | NOV | Thermus thermophilus | DNA GYRASE SUBUNIT B | 
| 1klm | SPP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE | 
| 1kny | KAN | Staphylococcus aureus | KANAMYCIN NUCLEOTIDYLTRANSFERASE | 
| 1kqb | BEZ | Enterobacter cloacae | OXYGEN-INSENSITIVE NAD(P)H NITROREDUCTASE | 
| 1kqe | DVA | Brevibacillus brevis | MINI-GRAMICIDIN A | 
| 1kqw | RTL | Danio rerio | CELLULAR RETINOL-BINDING PROTEIN | 
| 1kt3 | RTL | Bos taurus | PLASMA RETINOL-BINDING PROTEIN | 
| 1kt4 | RTL | Bos taurus | PLASMA RETINOL-BINDING PROTEIN | 
| 1kt5 | RTL | Bos taurus | PLASMA RETINOL-BINDING PROTEIN | 
| 1kt6 | RTL | Bos taurus | PLASMA RETINOL-BINDING PROTEIN | 
| 1kt7 | RTL | Bos taurus | PLASMA RETINOL-BINDING PROTEIN | 
| 1kvl | CLS | Escherichia coli | BETA-LACTAMASE | 
| 1kw0 | H4B | Homo sapiens | PHENYLALANINE-4-HYDROXYLASE | 
| 1kxh | ACR | Pseudoalteromonas haloplanktis | ALPHA-AMYLASE | 
| 1kyv | RBF | Schizosaccharomyces pombe | 6,7-DIMETHYL-8-RIBITYLLUMAZINE SYNTHASE | 
| 1l2i | CCS | Homo sapiens | ESTROGEN RECEPTOR | 
| 1l4n | NIO | Salmonella enterica | NICOTINATE-NUCLEOTIDE--DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1l5k | NIO | Salmonella enterica | NICOTINATE-NUCLEOTIDE--DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1l5l | NIO | Salmonella enterica | NICOTINATE-NUCLEOTIDE--DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1l5m | NIO | Salmonella enterica | NICOTINATE-NUCLEOTIDE--DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 1l5q | CFF | Homo sapiens | GLYCOGEN PHOSPHORYLASE, LIVER FORM | 
| 1l5r | RBF | Homo sapiens | GLYCOGEN PHOSPHORYLASE, LIVER FORM | 
| 1l7f | BCZ | Influenza A virus | NEURAMINIDASE | 
| 1l7g | BCZ | Influenza A virus | NEURAMINIDASE | 
| 1l7h | BCZ | Influenza A virus | NEURAMINIDASE | 
| 1l7q | BEZ | Rhodococcus sp. MB1 | COCAINE ESTERASE | 
| 1l7x | CFF | Homo sapiens | GLYCOGEN PHOSPHORYLASE, LIVER FORM | 
| 1l8t | KAN | Enterococcus faecalis | AMINOGLYCOSIDE 3'-PHOSPHOTRANSFERASE | 
| 1lbc | CYZ | Rattus norvegicus | GLUTAMINE RECEPTOR 2 | 
| 1lf9 | ACR | Thermoanaerobacterium thermosaccharolyticum | GLUCOAMYLASE | 
| 1lh6 | NIO | Lupinus luteus | LEGHEMOGLOBIN A (NICOTINATE MET) | 
| 1lhu | EST | Homo sapiens | SEX HORMONE-BINDING GLOBULIN | 
| 1lhv | NOG | Homo sapiens | SEX HORMONE-BINDING GLOBULIN | 
| 1lii | ADN | Toxoplasma gondii | ADENOSINE KINASE | 
| 1lik | ADN | Toxoplasma gondii | ADENOSINE KINASE | 
| 1lin | TFP | Bos taurus | CALMODULIN | 
| 1lqp | FCN | Pseudomonas aeruginosa | PROBABLE FOSFOMYCIN RESISTANCE PROTEIN | 
| 1lqt | ACT | Mycobacterium tuberculosis | FPRA | 
| 1lqu | ACT | Mycobacterium tuberculosis | FPRA | 
| 1lw0 | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE | 
| 1lwc | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE | 
| 1lwe | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE | 
| 1lwf | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE | 
| 1lxf | BEP | Homo sapiens | TROPONIN C, SLOW SKELETAL AND CARDIACMUSCLES;TROPONIN I, CARDIAC MUSCLE | 
| 1lzx | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 1lzz | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 1m00 | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 1m17 | AQ4 | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 1m2w | MTL | Pseudomonas fluorescens | MANNITOL DEHYDROGENASE | 
| 1m2z | DEX | Homo sapiens | GLUCOCORTICOID RECEPTOR | 
| 1m4d | TOY | Mycobacterium tuberculosis | AMINOGLYCOSIDE 2'-N-ACETYLTRANSFERASE | 
| 1m4g | RIO | Mycobacterium tuberculosis | AMINOGLYCOSIDE 2'-N-ACETYLTRANSFERASE | 
| 1m4i | KAN | Mycobacterium tuberculosis | AMINOGLYCOSIDE 2'-N-ACETYLTRANSFERASE | 
| 1m6e | SAL | Clarkia breweri | S-ADENOSYL-L-METHIONINE:SALICYLIC ACIDCARBOXYL METHYLTRANSFERASE | 
| 1m8d | CLW | Mus musculus | INDUCIBLE NITRIC OXIDE SYNTHASE | 
| 1m8d | H4B | Mus musculus | INDUCIBLE NITRIC OXIDE SYNTHASE | 
| 1m8e | H4B | Mus musculus | INDUCIBLE NITRIC OXIDE SYNTHASE | 
| 1m8h | H4B | Mus musculus | INDUCIBLE NITRIC OXIDE SYNTHASE | 
| 1m8i | H4B | Mus musculus | INDUCIBLE NITRIC OXIDE SYNTHASE | 
| 1m9j | CLW | Homo sapiens | ENDOTHELIAL NITRIC-OXIDE SYNTHASE | 
| 1m9t | H4B | Mus musculus | INDUCIBLE NITRIC OXIDE SYNTHASE | 
| 1maa | DME | Mus musculus | ACETYLCHOLINESTERASE | 
| 1mag | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1mcb | DHI | ;Homo sapiens | IMMUNOGLOBULIN LAMBDA DIMER MCG (LIGHTCHAIN);PEPTIDE N-ACETYL-L-GLN-D-PHE-L-HIS-D-PRO-OH | 
| 1mcl | DHI | ;Homo sapiens | IMMUNOGLOBULIN LAMBDA DIMER MCG (LIGHTCHAIN);N-ACETYL-D-HIS-L-PRO-OH | 
| 1mcn | DHI | ;Homo sapiens | IMMUNOGLOBULIN LAMBDA DIMER MCG (LIGHTCHAIN);PEPTIDE N-ACETYL-D-HIS-L-PRO-NH2 | 
| 1me7 | MOA | Tritrichomonas suis | INOSINE-5'-MONOPHOSPHATE DEHYDROGENASE | 
| 1meh | MOA | Tritrichomonas suis | INOSINE-5'-MONOPHOSPHATE DEHYDROGENASE | 
| 1mei | MOA | Tritrichomonas suis | INOSINE-5'-MONOPHOSPHATE DEHYDROGENASE | 
| 1mf1 | ACT | Mus musculus | ADENYLOSUCCINATE SYNTHETASE | 
| 1mic | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1mj2 | SAM | Escherichia coli | PROTEIN (METHIONINE REPRESSOR) | 
| 1mjl | SAM | Escherichia coli | METHIONINE REPRESSOR PROTEIN METJ | 
| 1mjo | SAM | Escherichia coli | METHIONINE REPRESSOR | 
| 1mjq | SAM | Escherichia coli | METHIONINE REPRESSOR | 
| 1mmk | H4B | Homo sapiens | PHENYLALANINE-4-HYDROXYLASE | 
| 1mmt | H4B | Homo sapiens | PHENYLALANINE-4-HYDROXYLASE | 
| 1mmv | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1mmw | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1mnv | DVA | Streptomyces antibioticus | ACTINOMYCIN D | 
| 1mog | RBF | Halobacterium salinarum | DODECIN | 
| 1mrg | ADN | Momordica charantia | ALPHA-MOMORCHARIN | 
| 1mrj | ADN | Trichosanthes kirilowii | ALPHA-TRICHOSANTHIN | 
| 1mrl | DOL | Enterococcus faecium | STREPTOGRAMIN A ACETYLTRANSFERASE | 
| 1mrq | STR | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C1 | 
| 1msk | ACT | Escherichia coli | COBALAMIN-DEPENDENT METHIONINE SYNTHASE | 
| 1msk | SAM | Escherichia coli | COBALAMIN-DEPENDENT METHIONINE SYNTHASE | 
| 1mt1 | AG2 | Methanocaldococcus jannaschii | PYRUVOYL-DEPENDENT ARGININE DECARBOXYLASEALPHA CHAIN;PYRUVOYL-DEPENDENT ARGININE DECARBOXYLASEBETA CHAIN | 
| 1mui | AB1 | Human immunodeficiency virus 1 | PROTEASE | 
| 1muo | ADN | Homo sapiens | AURORA-RELATED KINASE 1 | 
| 1mx1 | THA | Homo sapiens | LIVER CARBOXYLESTERASE I | 
| 1mx8 | RTL | Rattus norvegicus | CELLULAR RETINOL-BINDING PROTEIN I, HOLO | 
| 1mxd | ACR | Pyrococcus woesei | ALPHA AMYLASE | 
| 1mxf | MTX | Trypanosoma cruzi | PTERIDINE REDUCTASE 2 | 
| 1mxg | ACR | Pyrococcus woesei | ALPHA AMYLASE | 
| 1mz9 | VDY | Mus musculus | CARTILAGE OLIGOMERIC MATRIX PROTEIN | 
| 1n13 | AG2 | Methanocaldococcus jannaschii | PYRUVOYL-DEPENDENT ARGININE DECARBOXYLASEALPHA CHAIN;PYRUVOYL-DEPENDENT ARGININE DECARBOXYLASEBETA CHAIN | 
| 1n2n | H4B | Mus musculus | INDUCIBLE NITRIC OXIDE SYNTHASE | 
| 1n2x | SAM | Thermotoga maritima | S-ADENOSYL-METHYLTRANSFERASE MRAW | 
| 1n3z | ADN | Bos taurus | RIBONUCLEASE, SEMINAL | 
| 1n49 | RIT | Human immunodeficiency virus 1 | PROTEASE | 
| 1n4f | ASR | Gallus gallus | LYSOZYME C | 
| 1n4h | REA | Rattus norvegicus | NUCLEAR RECEPTOR ROR-BETA | 
| 1n5x | TEI | Bos taurus | XANTHINE DEHYDROGENASE | 
| 1n6a | SAM | Homo sapiens | SET DOMAIN-CONTAINING PROTEIN 7 | 
| 1n6c | SAM | Homo sapiens | SET DOMAIN-CONTAINING PROTEIN 7 | 
| 1nb9 | RBF | Homo sapiens | HYPOTHETICAL PROTEIN FLJ11149 | 
| 1nbh | ACT | Rattus norvegicus | GLYCINE N-METHYLTRANSFERASE | 
| 1nbh | SAM | Rattus norvegicus | GLYCINE N-METHYLTRANSFERASE | 
| 1nbi | SAM | Rattus norvegicus | GLYCINE N-METHYLTRANSFERASE | 
| 1ncw | BEZ | Mus musculus | IMMUNOGLOBULIN IGG2A | 
| 1nd4 | KAN | Klebsiella pneumoniae | AMINOGLYCOSIDE 3'-PHOSPHOTRANSFERASE | 
| 1ng8 | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1nh8 | HIS | Mycobacterium tuberculosis | ATP PHOSPHORIBOSYLTRANSFERASE | 
| 1nhz | 486 | Homo sapiens | GLUCOCORTICOID RECEPTOR | 
| 1nki | PPF | Pseudomonas aeruginosa | PROBABLE FOSFOMYCIN RESISTANCE PROTEIN | 
| 1nnc | ZMR | Influenza A virus | NEURAMINIDASE N9 | 
| 1nnf | EDT | Haemophilus influenzae | IRON-UTILIZATION PERIPLASMIC PROTEIN | 
| 1nod | H4B | Mus musculus | NITRIC OXIDE SYNTHASE | 
| 1np1 | HSM | Rhodnius prolixus | NITROPHORIN 1 | 
| 1nr6 | DIF | Oryctolagus cuniculus | CYTOCHROME P450 2C5 | 
| 1nrm | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1nru | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1nse | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 1nsi | H4B | Homo sapiens | PROTEIN (NITRIC OXIDE SYNTHASE) | 
| 1nt2 | SAM | Archaeoglobus fulgidus | FIBRILLARIN-LIKE PRE-RRNA PROCESSING PROTEIN | 
| 1nt5 | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1nt6 | DVA | Brevibacillus brevis | GRAMICIDIN C | 
| 1nv8 | SAM | Thermotoga maritima | HEMK PROTEIN | 
| 1nw3 | ACT | Homo sapiens | HISTONE METHYLTRANSFERASE DOT1L | 
| 1nw3 | SAM | Homo sapiens | HISTONE METHYLTRANSFERASE DOT1L | 
| 1nw5 | SAM | Rhodobacter sphaeroides | MODIFICATION METHYLASE RSRI | 
| 1nx9 | AIC | Acetobacter pasteurianus | ALPHA-AMINO ACID ESTER HYDROLASE | 
| 1nyr | THR | Staphylococcus aureus | THREONYL-TRNA SYNTHETASE 1 | 
| 1o76 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1o86 | LPR | Homo sapiens | ANGIOTENSIN CONVERTING ENZYME | 
| 1oaf | ASC | Glycine max | ASCORBATE PEROXIDASE | 
| 1oc3 | BEZ | Homo sapiens | PEROXIREDOXIN 5 | 
| 1odi | ADN | Thermus thermophilus | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 1oe1 | CU | Achromobacter xylosoxidans | DISSIMILATORY COPPER-CONTAINING NITRITEREDUCTASE | 
| 1oe2 | CU | Achromobacter xylosoxidans | DISSIMILATORY COPPER-CONTAINING NITRITEREDUCTASE | 
| 1oe3 | CU | Achromobacter xylosoxidans | DISSIMILATORY COPPER-CONTAINING NITRITEREDUCTASE | 
| 1og5 | SWF | Homo sapiens | CYTOCHROME P450 2C9 | 
| 1ohr | 1UN | Human immunodeficiency virus 1 | ASPARTYLPROTEASE | 
| 1oip | VIV | Homo sapiens | ALPHA-TOCOPHEROL TRANSFER PROTEIN | 
| 1olt | SAM | Escherichia coli | OXYGEN-INDEPENDENT COPROPORPHYRINOGEN IIIOXIDASE | 
| 1om4 | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1om5 | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1oni | BEZ | Homo sapiens | 14.5 KDA TRANSLATIONAL INHIBITOR PROTEIN | 
| 1opj | STI | Mus musculus | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE ABL1 | 
| 1oq5 | CEL | Homo sapiens | CARBONIC ANHYDRASE II | 
| 1os2 | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 1os6 | DXC | Geobacter sulfurreducens | PPCA | 
| 1osv | CHC | Rattus norvegicus | BILE ACID RECEPTOR | 
| 1ot7 | CHC | Rattus norvegicus | BILE ACID RECEPTOR | 
| 1ot7 | IU5 | Rattus norvegicus | BILE ACID RECEPTOR | 
| 1ovf | DVA | Streptomyces antibioticus | ACTINOMYCIN D | 
| 1oxr | AIN | Naja sagittifera | PHOSPHOLIPASE A2 ISOFORM 3 | 
| 1p2y | NCT | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1p33 | MTX | Leishmania tarentolae | PTERIDINE REDUCTASE 1 | 
| 1p5z | AR3 | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 1p62 | GEO | Mus musculus | DEOXYCYTIDINE KINASE | 
| 1p6h | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1p6i | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1p6j | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1p6k | ACT | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1p6k | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1p6k | MTL | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1p6l | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE, ENDOTHELIAL | 
| 1p6m | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE, ENDOTHELIAL | 
| 1p6n | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE, ENDOTHELIAL | 
| 1p7l | SAM | Escherichia coli | S-ADENOSYLMETHIONINE SYNTHETASE | 
| 1p7r | NCT | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1p91 | SAM | Escherichia coli | RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASEA | 
| 1p93 | DEX | Homo sapiens | GLUCOCORTICOID RECEPTOR | 
| 1p9g | ACT | Eucommia ulmoides | EAFP 2 | 
| 1pb9 | 4AX | Rattus norvegicus | N-METHYL-D-ASPARTATE RECEPTOR SUBUNIT 1 | 
| 1pbc | BHA | Pseudomonas fluorescens | P-HYDROXYBENZOATE HYDROXYLASE | 
| 1pbf | BHA | Pseudomonas fluorescens | P-HYDROXYBENZOATE HYDROXYLASE | 
| 1pbk | RAP | Homo sapiens | FKBP25 | 
| 1pcg | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 1pg2 | ADN | Escherichia coli | METHIONYL-TRNA SYNTHETASE | 
| 1phg | MYT | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1pj5 | ACT | Arthrobacter globiformis | N,N-DIMETHYLGLYCINE OXIDASE | 
| 1pj6 | FOL | Arthrobacter globiformis | N,N-DIMETHYLGLYCINE OXIDASE | 
| 1pj7 | FFO | Arthrobacter globiformis | N,N-DIMETHYLGLYCINE OXIDASE | 
| 1pk2 | ACA | Homo sapiens | TISSUE-TYPE PLASMINOGEN ACTIVATOR | 
| 1pk7 | ADN | Escherichia coli | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 1pk9 | 2FA | Escherichia coli | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 1pkv | RBF | Escherichia coli | RIBOFLAVIN SYNTHASE ALPHA CHAIN | 
| 1pn0 | IPH | Cutaneotrichosporon cutaneum | PHENOL 2-MONOOXYGENASE | 
| 1pnl | PAC | Escherichia coli | PENICILLIN AMIDOHYDROLASE | 
| 1pth | SAL | Ovis aries | PROSTAGLANDIN H2 SYNTHASE-1 | 
| 1pw7 | RAB | Escherichia coli | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 1pwy | AC2 | Homo sapiens | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 1pxx | DIF | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 1q0y | MOI | Mus musculus | FAB 9B1, HEAVY CHAIN;FAB 9B1, LIGHT CHAIN | 
| 1q13 | TES | Oryctolagus cuniculus | PROSTAGLANDIN-E2 9-REDUCTASE | 
| 1q23 | FUA | Escherichia coli | CHLORAMPHENICOL ACETYLTRANSFERASE | 
| 1q2o | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE, ENDOTHELIAL | 
| 1q6i | FK5 | Escherichia coli | FKBP-TYPE PEPTIDYL-PROLYL CIS-TRANS ISOMERASEFKPA | 
| 1q72 | COC | Mus musculus | FAB M82G2, HEAVY CHAIN;FAB M82G2, LIGHT CHAIN | 
| 1q8j | C2F | Thermotoga maritima | 5-METHYLTETRAHYDROFOLATE S-HOMOCYSTEINEMETHYLTRANSFERASE | 
| 1q97 | ADN | Saccharomyces cerevisiae | SR PROTEIN KINASE | 
| 1qab | RTL | Homo sapiens | PROTEIN (RETINOL BINDING PROTEIN) | 
| 1qao | SAM | Bacillus subtilis | ERMC' METHYLTRANSFERASE | 
| 1qca | FUA | Shigella flexneri | TYPE III CHLORAMPHENICOL ACETYLTRANSFERASE | 
| 1qfi | DVA | Streptomyces antibioticus | ACTINOMYCIN X2 | 
| 1qft | HSM | Rhipicephalus appendiculatus | PROTEIN (FEMALE-SPECIFIC HISTAMINE BINDINGPROTEIN 2) | 
| 1qfv | HSM | Rhipicephalus appendiculatus | PROTEIN (FEMALE-SPECIFIC HISTAMINE BINDINGPROTEIN 2) | 
| 1qhs | CLM | Streptomyces venezuelae | PROTEIN (CHLORAMPHENICOL PHOSPHOTRANSFERASE) | 
| 1qhy | CLM | Streptomyces venezuelae | CHLORAMPHENICOL PHOSPHOTRANSFERASE | 
| 1qkn | RAL | Rattus norvegicus | ESTROGEN RECEPTOR BETA | 
| 1qkt | EST | Homo sapiens | ESTRADIOL RECEPTOR | 
| 1qku | EST | Homo sapiens | ESTRADIOL RECEPTOR | 
| 1qlt | ACT | Penicillium simplicissimum | VANILLYL-ALCOHOL OXIDASE | 
| 1qom | H4B | Mus musculus | NITRIC OXIDE SYNTHASE | 
| 1qti | GNT | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 1qu2 | MRC | Staphylococcus aureus | ISOLEUCYL-TRNA SYNTHETASE | 
| 1qu3 | MRC | Staphylococcus aureus | ISOLEUCYL-TRNA SYNTHETASE | 
| 1qvt | PRL | Staphylococcus aureus | TRANSCRIPTIONAL REGULATOR QACR | 
| 1qvu | PRL | Staphylococcus aureus | TRANSCRIPTIONAL REGULATOR QACR | 
| 1qw4 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 1qw5 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 1qw6 | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1qwc | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1qyx | ASD | Homo sapiens | ESTRADIOL 17 BETA-DEHYDROGENASE 1 | 
| 1qzf | FOL | Cryptosporidium hominis | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 1qzr | CDX | Saccharomyces cerevisiae | DNA TOPOISOMERASE II | 
| 1qzz | ACT | Streptomyces purpurascens | ACLACINOMYCIN-10-HYDROXYLASE | 
| 1qzz | SAM | Streptomyces purpurascens | ACLACINOMYCIN-10-HYDROXYLASE | 
| 1r15 | NCA | Aplysia californica | ADP-RIBOSYL CYCLASE | 
| 1r30 | SAM | Escherichia coli | BIOTIN SYNTHASE | 
| 1r35 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 1r55 | 097 | Homo sapiens | ADAM 33 | 
| 1r5l | VIV | Homo sapiens | PROTEIN (ALPHA-TOCOPHEROL TRANSFER PROTEIN) | 
| 1r9o | FLP | Homo sapiens | CYTOCHROME P450 2C9 | 
| 1ra2 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1ra3 | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1ra8 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1rb2 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1rb3 | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1rbp | RTL | Homo sapiens | PLASMA RETINOL-BINDING PROTEIN PRECURSOR | 
| 1rd7 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1re7 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1rff | SPM | ;Homo sapiens | TOPOISOMERASE I-DERIVED PEPTIDE;TYROSYL-DNA PHOSPHODIESTERASE 1 | 
| 1rff | SPM | Homo sapiens | TYROSYL-DNA PHOSPHODIESTERASE 1 | 
| 1rfi | SPM | ;Homo sapiens | TOPOISOMERASE I-DERIVED PEPTIDE;TYROSYL-DNA PHOSPHODIESTERASE 1 | 
| 1rg1 | SPM | Homo sapiens | TYROSYL-DNA PHOSPHODIESTERASE 1 | 
| 1rg2 | SPM | Homo sapiens | TYROSYL-DNA PHOSPHODIESTERASE 1 | 
| 1rg7 | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1rg9 | SAM | Escherichia coli | S-ADENOSYLMETHIONINE SYNTHETASE | 
| 1rgu | SPM | Homo sapiens | TYROSYL-DNA PHOSPHODIESTERASE 1 | 
| 1rh0 | SPM | Homo sapiens | TYROSYL-DNA PHOSPHODIESTERASE 1 | 
| 1rh3 | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1ri4 | SAM | Encephalitozoon cuniculi | MRNA CAPPING ENZYME | 
| 1rj6 | AZM | Mus musculus | CARBONIC ANHYDRASE XIV | 
| 1rjd | SAM | Saccharomyces cerevisiae | CARBOXY METHYL TRANSFERASE FOR PROTEINPHOSPHATASE 2A CATALYTIC SUBUNIT | 
| 1rjo | CU | Arthrobacter globiformis | PHENYLETHYLAMINE OXIDASE | 
| 1rk3 | VDX | Rattus norvegicus | VITAMIN D3 RECEPTOR | 
| 1rkw | PNT | Staphylococcus aureus | TRANSCRIPTIONAL REGULATOR QACR | 
| 1rky | CU | Komagataella pastoris | LYSYL OXIDASE | 
| 1rl8 | RIT | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 1rlb | REA | Gallus gallus | RETINOL BINDING PROTEIN | 
| 1rmt | ADN | Escherichia coli | CLASS B ACID PHOSPHATASE | 
| 1rnr | DAH | Escherichia coli | RIBONUCLEOTIDE REDUCTASE R1 PROTEIN | 
| 1rqj | RIS | Escherichia coli | GERANYLTRANSTRANSFERASE | 
| 1rqp | SAM | Streptomyces cattleya | 5'-FLUORO-5'-DEOXYADENOSINE SYNTHASE | 
| 1rr8 | TTC | ;Homo sapiens | DNA TOPOISOMERASE I | 
| 1rrj | TTC | ;Homo sapiens | DNA TOPOISOMERASE I | 
| 1rs6 | ACT | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1rs6 | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1rs6 | MTL | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1rs7 | ACT | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1rs7 | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1rs7 | MTL | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1rs8 | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE, ENDOTHELIAL | 
| 1rs9 | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE, ENDOTHELIAL | 
| 1rts | D16 | Rattus norvegicus | THYMIDYLATE SYNTHASE | 
| 1ru9 | ACT | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1ru9 | BEZ | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1rua | ACT | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1rua | BEZ | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1ruk | ACT | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1ruk | BEZ | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1rul | ACT | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1rul | BEZ | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1rum | BEZ | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1rup | BEZ | Mus musculus | IMMUNOGLOBULIN IGG2A, HEAVY CHAIN;IMMUNOGLOBULIN IGG2A, LIGHT CHAIN | 
| 1rv7 | AB1 | Human immunodeficiency virus 1 | PROTEASE | 
| 1rx2 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1rx3 | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1rx7 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1rx8 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1rxc | URF | Escherichia coli | URIDINE PHOSPHORYLASE | 
| 1s14 | NOV | Escherichia coli | TOPOISOMERASE IV SUBUNIT B | 
| 1s19 | MC9 | Homo sapiens | VITAMIN D3 RECEPTOR | 
| 1s1u | NVP | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE | 
| 1s1x | NVP | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE | 
| 1s2a | IMN | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 1s3z | RIO | Salmonella enterica | AMINOGLYCOSIDE 6'-N-ACETYLTRANSFERASE | 
| 1s8f | BEZ | Canis lupus | RAS-RELATED PROTEIN RAB-9A | 
| 1s9a | BEZ | Rhodococcus opacus | CHLOROCATECHOL 1,2-DIOXYGENASE | 
| 1s9p | DES | Mus musculus | ESTROGEN-RELATED RECEPTOR GAMMA | 
| 1s9q | CHD | Mus musculus | ESTROGEN-RELATED RECEPTOR GAMMA | 
| 1sa1 | POD | Bos taurus | TUBULIN ALPHA CHAIN;TUBULIN BETA CHAIN | 
| 1sbr | VIB | Bacillus subtilis | YKOF | 
| 1sdt | MK1 | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 1sdu | MK1 | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 1sdv | MK1 | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 1sg9 | SAM | Thermotoga maritima | HEMK PROTEIN | 
| 1sgu | MK1 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 1sh9 | RIT | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 1skx | RFP | Homo sapiens | ORPHAN NUCLEAR RECEPTOR PXR | 
| 1sn0 | T44 | Sparus aurata | TRANSTHYRETIN | 
| 1sn5 | T3 | Sparus aurata | TRANSTHYRETIN | 
| 1sq5 | PAU | Escherichia coli | PANTOTHENATE KINASE | 
| 1sqf | SAM | Escherichia coli | SUN PROTEIN | 
| 1sqn | NDR | Homo sapiens | PROGESTERONE RECEPTOR | 
| 1ss4 | ACT | Bacillus cereus | GLYOXALASE FAMILY PROTEIN | 
| 1stf | CCS | Carica papaya;Homo sapiens | PAPAIN;STEFIN B (CYSTATIN B) | 
| 1sv5 | 65B | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE | 
| 1sv9 | DIF | Daboia russelii | PHOSPHOLIPASE A2 | 
| 1t03 | TFO | ;Human immunodeficiency virus 1 | POL POLYPROTEIN;SYNTHETIC OLIGONUCLEOTIDE PRIMER | 
| 1t3r | 017 | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 1t46 | STI | Homo sapiens | HOMO SAPIENS V-KIT HARDY-ZUCKERMAN 4 FELINESARCOMA VIRAL ONCOGENE HOMOLOG | 
| 1t69 | SHH | Homo sapiens | HISTONE DEACETYLASE 8 | 
| 1t6z | RBF | Thermotoga maritima | RIBOFLAVIN KINASE/FMN ADENYLYLTRANSFERASE | 
| 1t7i | 017 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 1t7j | 478 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 1t85 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1t86 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1t87 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1t88 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1t9u | CPF | Escherichia coli | ACRIFLAVINE RESISTANCE PROTEIN B | 
| 1t9w | NFN | Escherichia coli | ACRIFLAVINE RESISTANCE PROTEIN B | 
| 1tbf | VIA | Homo sapiens | CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE | 
| 1tco | FK5 | Bos taurus | FK506-BINDING PROTEIN;SERINE/THREONINE PHOSPHATASE B2 | 
| 1td2 | PXL | Escherichia coli | PYRIDOXAMINE KINASE | 
| 1td7 | NFL | Naja sagittifera | PHOSPHOLIPASE A2 ISOFORM 3 | 
| 1tdn | LEU | Gloydius halys | L-AMINO ACID OXIDASE | 
| 1tdr | MTX | Escherichia coli | TELLUROMETHIONYL DIHYDROFOLATE REDUCTASE | 
| 1tgm | AIN | Daboia russelii | PHOSPHOLIPASE A2 | 
| 1th6 | OIN | Daboia russelii | PHOSPHOLIPASE A2 | 
| 1tj2 | ACT | Escherichia coli | BIFUNCTIONAL PUTA PROTEIN | 
| 1tkq | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 1tkq | DVA | Brevibacillus brevis | GRAMICIDIN A;MINI-GRAMICIDIN A | 
| 1tkq | DVA | Brevibacillus brevis | MINI-GRAMICIDIN A | 
| 1tlm | MIL | Homo sapiens | TRANSTHYRETIN | 
| 1tls | C2F | Escherichia coli | THYMIDYLATE SYNTHASE | 
| 1tmx | BEZ | Pimelobacter simplex | HYDROXYQUINOL 1,2-DIOXYGENASE | 
| 1tnl | TPA | Bos taurus | TRYPSIN | 
| 1tsn | C2F | Escherichia coli | THYMIDYLATE SYNTHASE | 
| 1tt0 | ACT | Trametes ochracea | PYRANOSE OXIDASE | 
| 1tt6 | DES | Homo sapiens | TRANSTHYRETIN | 
| 1tub | TXL | Sus scrofa | TUBULIN | 
| 1tuf | AZ1 | Methanocaldococcus jannaschii | DIAMINOPIMELATE DECARBOXYLASE | 
| 1tuv | VK3 | Escherichia coli | PROTEIN YGIN | 
| 1tv8 | SAM | Staphylococcus aureus | MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN A | 
| 1tw4 | CHD | Gallus gallus | FATTY ACID-BINDING PROTEIN | 
| 1tyl | TYL | Homo sapiens | INSULIN | 
| 1tym | TYL | Homo sapiens | INSULIN | 
| 1tyr | 9CR | Homo sapiens | TRANSTHYRETIN | 
| 1tz8 | DES | Homo sapiens | TRANSTHYRETIN | 
| 1u18 | HSM | Rhodnius prolixus | NITROPHORIN 1 | 
| 1u1j | C2F | Arabidopsis thaliana | 5-METHYLTETRAHYDROPTEROYLTRIGLUTAMATE--HOMOCYSTEINE METHYLTRANSFERASE | 
| 1u65 | CP0 | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 1u70 | MTX | Mus musculus | DIHYDROFOLATE REDUCTASE | 
| 1u72 | MTX | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 1uak | SAM | Haemophilus influenzae | TRNA (GUANINE-N(1)-)-METHYLTRANSFERASE | 
| 1uay | ADN | Thermus thermophilus | TYPE II 3-HYDROXYACYL-COA DEHYDROGENASE | 
| 1udt | VIA | Homo sapiens | CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE | 
| 1udu | CIA | Homo sapiens | CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE | 
| 1uho | VDN | Homo sapiens | CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE | 
| 1ukb | BEZ | Pseudomonas fluorescens | 2-HYDROXY-6-OXO-7-METHYLOCTA-2,4-DIENOATEHYDROLASE | 
| 1ulv | ACR | Arthrobacter globiformis | GLUCODEXTRANASE | 
| 1unj | DVA | Streptomyces antibioticus | 7-AMINO-ACTINOMYCIN D | 
| 1unm | DVA | Streptomyces antibioticus | 7-AMINOACTINOMYCIN D | 
| 1uob | PNN | Streptomyces clavuligerus | DEACETOXYCEPHALOSPORIN C SYNTHETASE | 
| 1uof | PNN | Streptomyces clavuligerus | DEACETOXYCEPHALOSPORIN C SYNTHETASE | 
| 1upf | URF | Toxoplasma gondii | URACIL PHOSPHORIBOSYLTRANSFERASE | 
| 1urm | BEZ | Homo sapiens | PEROXIREDOXIN 5 | 
| 1usq | CLM | Escherichia coli | DR HEMAGGLUTININ STRUCTURAL SUBUNIT | 
| 1utd | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 1utt | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 1utz | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 1uuj | ACT | Mus musculus | PLATELET-ACTIVATING FACTOR ACETYLHYDROLASE IBALPHA SUBUNIT | 
| 1uuj | BEZ | Mus musculus | PLATELET-ACTIVATING FACTOR ACETYLHYDROLASE IBALPHA SUBUNIT | 
| 1uw6 | NCT | Lymnaea stagnalis | ACETYLCHOLINE-BINDING PROTEIN | 
| 1uwh | BAX | Homo sapiens | B-RAF PROTO-ONCOGENE SERINE/THREONINE-PROTEINKINASE | 
| 1uwj | BAX | Homo sapiens | B-RAF PROTO-ONCOGENE SERINE/THREONINE-PROTEINKINASE | 
| 1uyu | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1v1t | BEZ | Homo sapiens | SYNTENIN 1 | 
| 1v2x | SAM | Thermus thermophilus | TRNA (GM18) METHYLTRANSFERASE | 
| 1v3e | ZMR | Human respirovirus 3 | HEMAGGLUTININ-NEURAMINIDASE GLYCOPROTEIN | 
| 1v3q | 2DI | Homo sapiens | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 1v54 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE I;CYTOCHROME C OXIDASE POLYPEPTIDE II;CYTOCHROME C OXIDASE POLYPEPTIDE VIA-HEART | 
| 1v54 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE I;CYTOCHROME C OXIDASE POLYPEPTIDE III | 
| 1v54 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE I;CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART | 
| 1v54 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE III;CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART | 
| 1v54 | CU | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE I | 
| 1v55 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE I;CYTOCHROME C OXIDASE POLYPEPTIDE II;CYTOCHROME C OXIDASE POLYPEPTIDE VIA-HEART | 
| 1v55 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE I;CYTOCHROME C OXIDASE POLYPEPTIDE III | 
| 1v55 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE I;CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART | 
| 1v55 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE III;CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART | 
| 1v55 | CU | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE I | 
| 1v7z | CRN | Pseudomonas sp. | CREATININE AMIDOHYDROLASE | 
| 1v8b | ADN | Plasmodium falciparum | ADENOSYLHOMOCYSTEINASE | 
| 1vaf | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 1vag | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1vao | ACT | Penicillium simplicissimum | VANILLYL-ALCOHOL OXIDASE | 
| 1ve3 | SAM | Pyrococcus horikoshii | HYPOTHETICAL PROTEIN PH0226 | 
| 1ve9 | BEZ | Sus scrofa | D-AMINO ACID OXIDASE | 
| 1vhw | ADN | Vibrio cholerae | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 1vid | SAM | Rattus norvegicus | CATECHOL O-METHYLTRANSFERASE | 
| 1vif | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 1vm1 | TAZ | Klebsiella pneumoniae | BETA-LACTAMASE SHV-1 | 
| 1vpo | TES | Mus musculus | ANTI-TESTOSTERONE (HEAVY CHAIN);ANTI-TESTOSTERONE (LIGHT CHAIN) | 
| 1vpt | SAM | Vaccinia virus | VP39 | 
| 1vq1 | SAM | Thermotoga maritima | N5-GLUTAMINE METHYLTRANSFERASE, HEMK | 
| 1vrt | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE | 
| 1w0f | STR | Homo sapiens | CYTOCHROME P450 3A4 | 
| 1w0g | MYT | Homo sapiens | CYTOCHROME P450 3A4 | 
| 1w2z | CU | Pisum sativum | AMINE OXIDASE, COPPER CONTAINING | 
| 1w5u | DVA | Brevibacillus brevis | GRAMICIDIN D | 
| 1w6r | GNT | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 1w76 | GNT | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 1w9e | BEZ | Homo sapiens | SYNTENIN 1 | 
| 1w9o | BEZ | Homo sapiens | SYNTENIN 1 | 
| 1w9q | BEZ | Homo sapiens | SYNTENIN 1 | 
| 1wg8 | SAM | Thermus thermophilus | PREDICTED S-ADENOSYLMETHIONINE-DEPENDENTMETHYLTRANSFERASE | 
| 1wmq | HIS | Bacillus subtilis | HUT OPERON POSITIVE REGULATORY PROTEIN | 
| 1wop | FFO | Thermotoga maritima | AMINOMETHYLTRANSFERASE | 
| 1wpu | HIS | Bacillus subtilis | HUT OPERON POSITIVE REGULATORY PROTEIN | 
| 1wrk | TFP | Homo sapiens | TROPONIN C, SLOW SKELETAL AND CARDIAC MUSCLES | 
| 1wrl | TFP | Homo sapiens | TROPONIN C, SLOW SKELETAL AND CARDIAC MUSCLES | 
| 1wrq | HIS | Bacillus subtilis | HUT OPERON POSITIVE REGULATORY PROTEIN | 
| 1wsv | THH | Homo sapiens | AMINOMETHYLTRANSFERASE | 
| 1wu8 | ADN | Pyrococcus horikoshii | HYPOTHETICAL PROTEIN PH0463 | 
| 1wyg | SAL | Rattus norvegicus | XANTHINE DEHYDROGENASE/OXIDASE | 
| 1x1a | SAM | Chlorobaculum tepidum | CRTF-RELATED PROTEIN | 
| 1x70 | 715 | Homo sapiens | DIPEPTIDYL PEPTIDASE IV | 
| 1x7p | SAM | Streptomyces viridochromogenes | RRNA METHYLTRANSFERASE | 
| 1x8v | ESL | Mycobacterium tuberculosis | CYTOCHROME P450 51 | 
| 1xbb | STI | Homo sapiens | TYROSINE-PROTEIN KINASE SYK | 
| 1xdk | 9CR | Mus musculus | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 1xdk | 9CR | Mus musculus | RETINOIC ACID RECEPTOR, BETA | 
| 1xds | SAM | Streptomyces purpurascens | PROTEIN RDMB | 
| 1xf0 | ASD | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 1xf1 | ACT | Streptococcus pyogenes | C5A PEPTIDASE | 
| 1xid | ASC | Streptomyces rubiginosus | D-XYLOSE ISOMERASE | 
| 1xih | SOR | Streptomyces rubiginosus | D-XYLOSE ISOMERASE | 
| 1xiu | 9CR | Biomphalaria glabrata | RXR-LIKE PROTEIN | 
| 1xjb | ACT | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 1xkk | FMM | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 1xl6 | SPM | Magnetospirillum magnetotacticum | INWARD RECTIFIER POTASSIUM CHANNEL | 
| 1xls | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 1xlx | CIO | Homo sapiens | CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE4B | 
| 1xmu | ROF | Homo sapiens | CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE4B | 
| 1xom | CIO | Homo sapiens | CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE4D | 
| 1xoq | ROF | Homo sapiens | CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE4D | 
| 1xos | VIA | Homo sapiens | CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE4B | 
| 1xot | VDN | Homo sapiens | CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE4B | 
| 1xoz | CIA | Homo sapiens | CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE | 
| 1xp0 | VDN | Homo sapiens | CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE | 
| 1xpg | C2F | Thermotoga maritima | 5-METHYLTETRAHYDROPTEROYLTRIGLUTAMATE--HOMOCYSTEINE METHYLTRANSFERASE | 
| 1xpq | SPM | Saccharomyces cerevisiae | FMS1 PROTEIN | 
| 1xql | 4AX | Geobacillus stearothermophilus | ALANINE RACEMASE | 
| 1xr2 | C2F | Thermotoga maritima | 5-METHYLTETRAHYDROPTEROYLTRIGLUTAMATE--HOMOCYSTEINE METHYLTRANSFERASE | 
| 1xva | ACT | Escherichia coli | GLYCINE N-METHYLTRANSFERASE | 
| 1xva | SAM | Escherichia coli | GLYCINE N-METHYLTRANSFERASE | 
| 1xwf | ADN | Rattus norvegicus | ADENOSYLHOMOCYSTEINASE | 
| 1xz1 | HLT | Equus caballus | FERRITIN LIGHT CHAIN | 
| 1xz3 | ICF | Equus caballus | FERRITIN LIGHT CHAIN | 
| 1xzx | T3 | Homo sapiens | THYROID HORMONE RECEPTOR BETA-1 | 
| 1y0x | T44 | Homo sapiens | THYROID HORMONE RECEPTOR BETA-1 | 
| 1y1p | ACT | Sporidiobolus salmonicolor | ALDEHYDE REDUCTASE II | 
| 1y4l | SVR | Bothrops asper | PHOSPHOLIPASE A2 HOMOLOG 2 | 
| 1y7i | SAL | Nicotiana tabacum | SALICYLIC ACID-BINDING PROTEIN 2 | 
| 1y93 | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 1ya3 | STR | Homo sapiens | MINERALOCORTICOID RECEPTOR | 
| 1ya4 | CTX | Homo sapiens | CES1 PROTEIN | 
| 1yaj | BEZ | Homo sapiens | CES1 PROTEIN | 
| 1yat | FK5 | Saccharomyces cerevisiae | FK506 BINDING PROTEIN | 
| 1yc2 | NCA | Archaeoglobus fulgidus | NAD-DEPENDENT DEACETYLASE 2 | 
| 1yc5 | NCA | Thermotoga maritima | NAD-DEPENDENT DEACETYLASE | 
| 1yda | AZM | Homo sapiens | CARBONIC ANHYDRASE II | 
| 1ydb | AZM | Homo sapiens | CARBONIC ANHYDRASE II | 
| 1ydd | AZM | Homo sapiens | CARBONIC ANHYDRASE II | 
| 1yhl | RIS | Trypanosoma cruzi | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 1yi4 | ADN | Homo sapiens | PROTO-ONCOGENE SERINE/THREONINE-PROTEINKINASE PIM-1 | 
| 1yki | NFZ | Escherichia coli | OXYGEN-INSENSITIVE NAD(P)H NITROREDUCTASE | 
| 1ymx | CFX | Escherichia coli | BETA-LACTAMASE CTX-M-9 | 
| 1ynn | RFP | Thermus aquaticus | DNA-DIRECTED RNA POLYMERASE BETA CHAIN | 
| 1yq7 | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHETASE | 
| 1yrc | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1yrd | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 1yri | ACT | Gallus gallus | VILLIN | 
| 1yv5 | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHETASE | 
| 1yvm | TMG | Escherichia coli | METHIONINE AMINOPEPTIDASE | 
| 1yvp | ACT | Xenopus laevis | 60-KDA SS-A/RO RIBONUCLEOPROTEIN | 
| 1z11 | 8MO | Homo sapiens | CYTOCHROME P450, FAMILY 2, SUBFAMILY A,POLYPEPTIDE 6 | 
| 1z2b | VLB | Bos taurus | TUBULIN ALPHA CHAIN;TUBULIN BETA CHAIN | 
| 1z35 | 2FA | Trichomonas vaginalis | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 1z37 | ADN | Trichomonas vaginalis | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 1z95 | 198 | Homo sapiens | ANDROGEN RECEPTOR | 
| 1z9h | IMN | Macaca fascicularis | MEMBRANE-ASSOCIATED PROSTAGLANDIN ESYNTHASE-2 | 
| 1z9y | FUN | Homo sapiens | CARBONIC ANHYDRASE II | 
| 1zea | DHI | ;Mus musculus | MONOCLONAL ANTI-CHOLERA TOXIN IGG1 KAPPAANTIBODY, H CHAIN;MONOCLONAL ANTI-CHOLERA TOXIN IGG1 KAPPAANTIBODY, L CHAIN;SHORT SYNTHETIC D-AMINO ACID PEPTIDE D2 | 
| 1zea | DVA | ;Mus musculus | MONOCLONAL ANTI-CHOLERA TOXIN IGG1 KAPPAANTIBODY, H CHAIN;SHORT SYNTHETIC D-AMINO ACID PEPTIDE D2 | 
| 1zgf | TRU | Homo sapiens | CARBONIC ANHYDRASE II | 
| 1zgy | BRL | Homo sapiens | PEROXISOME PROLIFERATOR ACTIVATED RECEPTORGAMMA | 
| 1zlq | ACT | Escherichia coli | NICKEL-BINDING PERIPLASMIC PROTEIN | 
| 1zlq | EDT | Escherichia coli | NICKEL-BINDING PERIPLASMIC PROTEIN | 
| 1zp4 | C2F | Escherichia coli | 5,10-METHYLENETETRAHYDROFOLATE REDUCTASE | 
| 1zq9 | SAM | Homo sapiens | PROBABLE DIMETHYLADENOSINE TRANSFERASE | 
| 1zsb | AZM | Homo sapiens | CARBONIC ANHYDRASE II | 
| 1zuc | T98 | Homo sapiens | PROGESTERONE RECEPTOR | 
| 1zvi | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1zvl | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1zw5 | ZOL | Homo sapiens | FARNESYL DIPHOSPHATE SYNTHASE | 
| 1zwp | NIM | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 1zz1 | SHH | Alcaligenaceae bacterium FB188 | HISTONE DEACETYLASE-LIKE AMIDOHYDROLASE | 
| 1zzq | ACT | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1zzq | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1zzq | MTL | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1zzr | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1zzs | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE, ENDOTHELIAL | 
| 1zzt | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE, ENDOTHELIAL | 
| 1zzu | ACT | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1zzu | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 1zzu | MTL | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 207l | SC2 | Homo sapiens | LYSOZYME | 
| 209d | DVA | Streptomyces antibioticus | N8-ACTINOMYCIN D | 
| 2a15 | NCA | Mycobacterium tuberculosis | HYPOTHETICAL PROTEIN RV0760C | 
| 2a1h | GBN | Homo sapiens | BRANCHED CHAIN AMINOTRANSFERASE | 
| 2a1m | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2a1n | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2a1o | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2a3a | TEP | Aspergillus fumigatus | CHITINASE | 
| 2a3b | CFF | Aspergillus fumigatus | CHITINASE | 
| 2a3c | PNX | Aspergillus fumigatus | CHITINASE | 
| 2a3r | LDP | Homo sapiens | MONOAMINE-SULFATING PHENOL SULFOTRANSFERASE | 
| 2a58 | RBF | Schizosaccharomyces pombe | 6,7-DIMETHYL-8-RIBITYLLUMAZINE SYNTHASE | 
| 2a5h | SAM | Clostridium subterminale | L-LYSINE 2,3-AMINOMUTASE | 
| 2a68 | RBT | Thermus thermophilus | DNA-DIRECTED RNA POLYMERASE BETA CHAIN;RNA POLYMERASE SIGMA FACTOR RPOD | 
| 2a69 | RPT | Thermus thermophilus | DNA-DIRECTED RNA POLYMERASE BETA CHAIN | 
| 2a69 | RPT | Thermus thermophilus | DNA-DIRECTED RNA POLYMERASE BETA CHAIN;RNA POLYMERASE SIGMA FACTOR RPOD | 
| 2a7q | CFB | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 2a8t | ADN | Xenopus laevis | U8 SNORNA-BINDING PROTEIN X29 | 
| 2aa5 | STR | Homo sapiens | MINERALOCORTICOID RECEPTOR | 
| 2aa6 | STR | Homo sapiens | MINERALOCORTICOID RECEPTOR | 
| 2ab2 | SNL | Homo sapiens | MINERALOCORTICOID RECEPTOR | 
| 2aba | STR | Enterobacter cloacae | PENTAERYTHRITOL TETRANITRATE REDUCTASE | 
| 2ac7 | ADN | Bacillus cereus | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 2ace | ACH | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 2ack | EDR | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 2acl | REA | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 2adm | SAM | Thermus aquaticus | ADENINE-N6-DNA-METHYLTRANSFERASE TAQI | 
| 2ajv | COC | Mus musculus | ANTIBODY 7A1 FAB' | 
| 2ajy | BEZ | Mus musculus | ANTIBODY 7A1 FAB' | 
| 2ak1 | BEZ | Mus musculus | ANTIBODY 7A1 FAB' | 
| 2ake | TRP | Homo sapiens | TRYPTOPHANYL-TRNA SYNTHETASE | 
| 2am9 | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 2aof | FRD | ;Human immunodeficiency virus 1 | PEPTIDE INHIBITOR;POL POLYPROTEIN | 
| 2aoh | FRD | ;Human immunodeficiency virus 1 | PEPTIDE INHIBITOR;POL POLYPROTEIN | 
| 2aoi | FRD | ;Human immunodeficiency virus 1 | PEPTIDE INHIBITOR;POL POLYPROTEIN | 
| 2aoj | FRD | ;Human immunodeficiency virus 1 | PEPTIDE INHIBITOR;POL POLYPROTEIN | 
| 2aot | 2PM | Homo sapiens | HISTAMINE N-METHYLTRANSFERASE | 
| 2aou | CQA | Homo sapiens | HISTAMINE N-METHYLTRANSFERASE | 
| 2aow | THA | Homo sapiens | HISTAMINE N-METHYLTRANSFERASE | 
| 2aox | THA | Homo sapiens | HISTAMINE N-METHYLTRANSFERASE | 
| 2aqj | TRP | Pseudomonas fluorescens | TRYPTOPHAN HALOGENASE, PRNA | 
| 2aqu | DR7 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 2arm | OIN | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 2avd | SAM | Homo sapiens | CATECHOL-O-METHYLTRANSFERASE | 
| 2avo | MK1 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 2avs | MK1 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 2avv | MK1 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 2aw1 | COX | Homo sapiens | CARBONIC ANHYDRASE II | 
| 2axn | EDT | Homo sapiens | 6-PHOSPHOFRUCTO-2-KINASE/FRUCTOSE-2,6-BIPHOSPHATASE 3 (6PF-2-K/FRU- 2,6-P2ASEBRAIN/PLACENTA-TYPE ISOZYME) (IPFK-2)[INCLUDES: 6- PHOSPHOFRUCTO-2-KINASE (EC2.7.1.105); FRUCTOSE-2,6-BISPHOSPHATASE (EC 3.1.3.46)] | 
| 2ayl | FLP | Ovis aries | PROSTAGLANDIN G/H SYNTHASE 1 | 
| 2azq | PCF | Pseudomonas putida | CATECHOL 1,2-DIOXYGENASE | 
| 2azx | TRP | Homo sapiens | TRYPTOPHANYL-TRNA SYNTHETASE | 
| 2azy | CHD | Sus scrofa | PHOSPHOLIPASE A2, MAJOR ISOENZYME | 
| 2b0q | NMY | Enterococcus faecalis | AMINOGLYCOSIDE 3'-PHOSPHOTRANSFERASE | 
| 2b17 | DIF | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 2b25 | SAM | Homo sapiens | HYPOTHETICAL PROTEIN | 
| 2b60 | RIT | Human immunodeficiency virus 1 | GAG-POL POLYPROTEIN | 
| 2b7z | MK1 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 2b82 | ADN | Escherichia coli | CLASS B ACID PHOSPHATASE | 
| 2b8j | ADN | Escherichia coli | CLASS B ACID PHOSPHATASE | 
| 2b8j | SPM | Escherichia coli | CLASS B ACID PHOSPHATASE | 
| 2b9e | SAM | Homo sapiens | NOL1/NOP2/SUN DOMAIN FAMILY, MEMBER 5 ISOFORM2 | 
| 2bdm | TMI | Oryctolagus cuniculus | CYTOCHROME P450 2B4 | 
| 2bfm | TOP | Leishmania major | PTERIDINE REDUCTASE 1 | 
| 2bfp | H4B | Leishmania major | PTERIDINE REDUCTASE 1 | 
| 2bjf | DXC | Clostridium perfringens | CHOLOYLGLYCINE HYDROLASE | 
| 2bl9 | CP6 | Plasmodium vivax | DIHYDROFOLATE REDUCTASE-THYMIDYLATE SYNTHASE | 
| 2bla | CP6 | Plasmodium vivax | DIHYDROFOLATE REDUCTASE-THYMIDYLATE SYNTHASE | 
| 2bm9 | SAM | Streptomyces clavuligerus | CEPHALOSPORIN HYDROXYLASE CMCI | 
| 2bnn | FCN | Streptomyces wedmorensis | EPOXIDASE | 
| 2bpx | MK1 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 2br4 | SAM | Streptomyces clavuligerus | CEPHALOSPORIN HYDROXYLASE CMCI | 
| 2bte | LEU | Thermus thermophilus | AMINOACYL-TRNA SYNTHETASE | 
| 2bu8 | TF4 | Homo sapiens | PYRUVATE DEHYDROGENASE KINASE ISOENZYME 2 | 
| 2bue | RIO | Escherichia coli | AAC(6')-IB | 
| 2bxc | P1Z | Homo sapiens | SERUM ALBUMIN | 
| 2bxd | RWF | Homo sapiens | SERUM ALBUMIN | 
| 2bxe | 1FL | Homo sapiens | SERUM ALBUMIN | 
| 2bxf | DZP | Homo sapiens | SERUM ALBUMIN | 
| 2bxg | IBP | Homo sapiens | SERUM ALBUMIN | 
| 2bxk | IMN | Homo sapiens | SERUM ALBUMIN | 
| 2bxm | IMN | Homo sapiens | SERUM ALBUMIN | 
| 2bxp | P1Z | Homo sapiens | SERUM ALBUMIN | 
| 2bxq | IMN | Homo sapiens | SERUM ALBUMIN | 
| 2bxq | P1Z | Homo sapiens | SERUM ALBUMIN | 
| 2byo | LNL | Mycobacterium tuberculosis | LIPOPROTEIN LPPX | 
| 2byt | LEU | Thermus thermophilus | LEUCYL-TRNA SYNTHETASE | 
| 2c12 | SPM | Fusarium oxysporum | NITROALKANE OXIDASE | 
| 2c2b | SAM | Arabidopsis thaliana | THREONINE SYNTHASE 1, CHLOROPLASTIC | 
| 2c49 | ADN | Methanocaldococcus jannaschii | SUGAR KINASE MJ0406 | 
| 2c6n | LPR | Homo sapiens | ANGIOTENSIN-CONVERTING ENZYME, SOMATICISOFORM | 
| 2c7v | MTX | Trypanosoma brucei | PTERIDINE REDUCTASE | 
| 2c8a | NCA | Clostridium botulinum | MONO-ADP-RIBOSYLTRANSFERASE C3 | 
| 2cbr | A80 | Bos taurus | PROTEIN (CRABP-I) | 
| 2cc8 | RBF | Halobacterium salinarum | VNG1446H | 
| 2ccb | RBF | Halobacterium salinarum | VNG1446H | 
| 2cd2 | FOL | Pneumocystis carinii | DIHYDROFOLATE REDUCTASE | 
| 2cdq | SAM | Arabidopsis thaliana | ASPARTOKINASE | 
| 2ceo | T44 | Homo sapiens | THYROXINE-BINDING GLOBULIN | 
| 2ciz | ACT | Leptoxyphium fumago | CHLOROPEROXIDASE | 
| 2cl5 | SAM | Rattus norvegicus | CATECHOL O-METHYLTRANSFERASE | 
| 2cml | ZMR | Influenza A virus | NEURAMINIDASE | 
| 2coi | GBN | Homo sapiens | BRANCHED CHAIN AMINOTRANSFERASE 1, CYTOSOLIC | 
| 2coj | GBN | Homo sapiens | BRANCHED CHAIN AMINOTRANSFERASE 1, CYTOSOLIC | 
| 2cp4 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2cpp | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2d06 | EST | Homo sapiens | SULFOTRANSFERASE 1A1 | 
| 2d0k | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 2d55 | DVA | Streptomyces antibioticus | ACTINOMYCIN D | 
| 2dcf | ACA | Flavobacterium sp. | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 2ddw | PXL | Escherichia coli | PYRIDOXINE KINASE | 
| 2dg3 | RAP | Homo sapiens | FK506-BINDING PROTEIN 1A | 
| 2dg4 | RAP | Homo sapiens | FK506-BINDING PROTEIN 1A | 
| 2dg9 | RAP | Homo sapiens | FK506-BINDING PROTEIN 1A | 
| 2dm6 | IMN | Cavia porcellus | NADP-DEPENDENT LEUKOTRIENE B412-HYDROXYDEHYDROGENASE | 
| 2dpm | SAM | Streptococcus pneumoniae | PROTEIN (ADENINE-SPECIFIC METHYLTRANSFERASEDPNII 1) | 
| 2dpz | TYL | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 2dqy | CHD | Homo sapiens | LIVER CARBOXYLESTERASE 1 | 
| 2dr2 | TRP | Homo sapiens | TRYPTOPHANYL-TRNA SYNTHETASE | 
| 2dr6 | DM2 | Escherichia coli | ACRB | 
| 2drc | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 2drd | MIY | Escherichia coli | ACRB | 
| 2dtj | THR | Corynebacterium glutamicum | ASPARTOKINASE | 
| 2dtt | H4B | Pyrococcus horikoshii | HYPOTHETICAL PROTEIN PH0634 | 
| 2du8 | BEZ | Homo sapiens | D-AMINO-ACID OXIDASE | 
| 2dxr | SOR | Bos taurus | LACTOTRANSFERRIN | 
| 2dyr | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 2dyr | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2dyr | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2dyr | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2dyr | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2dys | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 2dys | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2dys | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2dys | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2dys | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2e1q | SAL | Homo sapiens | XANTHINE DEHYDROGENASE/OXIDASE | 
| 2e5d | NCA | Homo sapiens | NICOTINAMIDE PHOSPHORIBOSYLTRANSFERASE | 
| 2e7f | C2F | Moorella thermoacetica | 5-METHYLTETRAHYDROFOLATE CORRINOID/IRONSULFUR PROTEIN METHYLTRANSFERASE | 
| 2e91 | ZOL | Saccharomyces cerevisiae | GERANYLGERANYL PYROPHOSPHATE SYNTHETASE | 
| 2ecp | ACR | Escherichia coli | MALTODEXTRIN PHOSPHORYLASE | 
| 2efj | 37T | Coffea canephora | 3,7-DIMETHYLXANTHINE METHYLTRANSFERASE | 
| 2egv | SAM | Aquifex aeolicus | UPF0088 PROTEIN AQ_165 | 
| 2eij | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 2eij | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2eij | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2eij | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2eij | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2eik | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 2eik | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2eik | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2eik | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2eik | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2eil | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 2eil | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2eil | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2eil | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2eil | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2eim | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 2eim | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART | 
| 2eim | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2eim | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2eim | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2ein | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 2ein | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2ein | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE VIIA-HEART;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2ein | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2ein | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2ej3 | GBN | Thermus thermophilus | BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASE | 
| 2ejf | ADN | Pyrococcus horikoshii | 235AA LONG HYPOTHETICALBIOTIN--[ACETYL-COA-CARBOXYLASE] LIGASE | 
| 2ejg | ADN | Pyrococcus horikoshii | 235AA LONG HYPOTHETICALBIOTIN--[ACETYL-COA-CARBOXYLASE] LIGASE | 
| 2ejt | SAM | Pyrococcus horikoshii | N(2),N(2)-DIMETHYLGUANOSINE TRNAMETHYLTRANSFERASE | 
| 2euf | LQQ | Homo sapiens | CELL DIVISION PROTEIN KINASE 6 | 
| 2eva | ADN | Homo sapiens | TAK1 KINASE - TAB1 CHIMERA FUSION PROTEIN | 
| 2ez7 | DHI | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 2f0z | ZMR | Homo sapiens | SIALIDASE 2 | 
| 2f10 | BCZ | Homo sapiens | SIALIDASE 2 | 
| 2f16 | BO2 | Saccharomyces cerevisiae | PROTEASOME COMPONENT C5;PROTEASOME COMPONENT PRE2 | 
| 2f16 | BO2 | Saccharomyces cerevisiae | PROTEASOME COMPONENT PRE3;PROTEASOME COMPONENT PUP1 | 
| 2f16 | BO2 | Saccharomyces cerevisiae | PROTEASOME COMPONENT PUP1;PROTEASOME COMPONENT PUP3 | 
| 2f38 | 15M | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 2f6d | ACR | Saccharomycopsis fibuligera | GLUCOAMYLASE GLU1 | 
| 2f78 | BEZ | Acinetobacter baylyi | HTH-TYPE TRANSCRIPTIONAL REGULATOR BENM | 
| 2f7a | ACT | Acinetobacter baylyi | HTH-TYPE TRANSCRIPTIONAL REGULATOR BENM | 
| 2f7a | BEZ | Acinetobacter baylyi | HTH-TYPE TRANSCRIPTIONAL REGULATOR BENM | 
| 2f7f | NIO | Enterococcus faecalis | NICOTINATE PHOSPHORIBOSYLTRANSFERASE,PUTATIVE | 
| 2f80 | 017 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 2f81 | 017 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 2f89 | 210 | Homo sapiens | FARNESYL DIPHOSPHATE SYNTHASE | 
| 2f8c | ZOL | Homo sapiens | FARNESYL DIPHOSPHATE SYNTHASE | 
| 2f8d | BEZ | Acinetobacter baylyi | HTH-TYPE TRANSCRIPTIONAL REGULATOR BENM | 
| 2f8g | 017 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 2f8l | SAM | Listeria monocytogenes | HYPOTHETICAL PROTEIN LMO1582 | 
| 2f8z | ZOL | Homo sapiens | FARNESYL DIPHOSPHATE SYNTHASE | 
| 2f94 | BFQ | Homo sapiens | FARNESYL DIPHOSPHATE SYNTHASE | 
| 2f9k | ZOL | Homo sapiens | FARNESYL DIPHOSPHATE SYNTHASE | 
| 2f9w | PAU | Pseudomonas aeruginosa | PANTOTHENATE KINASE | 
| 2fb2 | SAM | Staphylococcus aureus | MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN A | 
| 2fcn | DVA | - | UBIQUITIN | 
| 2feu | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2fj1 | CTC | Escherichia coli | TETRACYCLINE REPRESSOR PROTEIN CLASS D | 
| 2fk8 | SAM | Mycobacterium tuberculosis | METHOXY MYCOLIC ACID SYNTHASE 4 | 
| 2fke | FK5 | Homo sapiens | FK506 BINDING PROTEIN | 
| 2fl5 | RBF | Homo sapiens | IMMUNOGLOBULIN IGG1 HEAVY CHAIN;IMMUNOGLOBULIN IGG1 LAMBDA LIGHT CHAIN | 
| 2fn1 | SAL | Yersinia enterocolitica | SALICYLATE SYNTHETASE, IRP9 | 
| 2fqd | CU | Escherichia coli | BLUE COPPER OXIDASE CUEO | 
| 2fqe | CU | Escherichia coli | BLUE COPPER OXIDASE CUEO | 
| 2fqf | CU | Escherichia coli | BLUE COPPER OXIDASE CUEO | 
| 2fqg | CU | Escherichia coli | BLUE COPPER OXIDASE CUEO | 
| 2fqy | ADN | Treponema pallidum | MEMBRANE LIPOPROTEIN TMPC | 
| 2fr3 | REA | Homo sapiens | CELLULAR RETINOIC ACID BINDING PROTEIN 2 | 
| 2ft9 | CHD | Ambystoma mexicanum | FATTY ACID-BINDING PROTEIN 2, LIVER | 
| 2fum | MIX | Mycobacterium tuberculosis | PROBABLE SERINE/THREONINE-PROTEIN KINASE PKNB | 
| 2fxd | DR7 | Human immunodeficiency virus 1 | POL PROTEIN | 
| 2fxe | DR7 | Human immunodeficiency virus 1 | POL PROTEIN | 
| 2g6h | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 2g6k | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 2g6m | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE, BRAIN | 
| 2g70 | SAM | Homo sapiens | PHENYLETHANOLAMINE N-METHYLTRANSFERASE | 
| 2g72 | SAM | Homo sapiens | PHENYLETHANOLAMINE N-METHYLTRANSFERASE | 
| 2g78 | REA | Homo sapiens | CELLULAR RETINOIC ACID-BINDING PROTEIN 2 | 
| 2geh | NHY | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 2gj5 | VD3 | Bos taurus | BETA-LACTOGLOBULIN | 
| 2gl0 | ADN | Pyrobaculum aerophilum | CONSERVED HYPOTHETICAL PROTEIN | 
| 2glu | SAM | Bacillus subtilis | YCGJ | 
| 2gqg | 1N1 | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE ABL1 | 
| 2gss | EAA | Homo sapiens | GLUTATHIONE S-TRANSFERASE P1-1 | 
| 2gvc | MMZ | Schizosaccharomyces pombe | MONOOXYGENASE | 
| 2h21 | SAM | Pisum sativum | RIBULOSE-1,5 BISPHOSPHATECARBOXYLASE/OXYGENASE | 
| 2h42 | VIA | Homo sapiens | CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE | 
| 2h4j | NCA | Thermotoga maritima | NAD-DEPENDENT DEACETYLASE | 
| 2h4n | AZM | Homo sapiens | CARBONIC ANHYDRASE II | 
| 2h77 | T3 | Homo sapiens | THRA PROTEIN | 
| 2h79 | T3 | Homo sapiens | THRA PROTEIN | 
| 2h9t | SVR | Homo sapiens | THROMBIN | 
| 2ha2 | SCK | Mus musculus | ACETYLCHOLINESTERASE | 
| 2ha4 | ACH | Mus musculus | ACETYLCHOLINESTERASE | 
| 2ha4 | ACT | Mus musculus | ACETYLCHOLINESTERASE | 
| 2ha6 | SCK | Mus musculus | ACETYLCHOLINESTERASE | 
| 2hc4 | VDX | Danio rerio | VITAMIN D RECEPTOR | 
| 2hcj | TAC | Escherichia coli | PROTEIN CHAIN ELONGATION FACTOR EF-TU | 
| 2hdn | TAC | Escherichia coli | ELONGATION FACTOR EF-TU | 
| 2hh9 | VIB | Candida albicans | THIAMIN PYROPHOSPHOKINASE | 
| 2hjh | NCA | Saccharomyces cerevisiae | NAD-DEPENDENT HISTONE DEACETYLASE SIR2 | 
| 2hkk | ALE | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 2hma | SAM | Streptococcus pneumoniae | PROBABLE TRNA(5-METHYLAMINOMETHYL-2-THIOURIDYLATE)-METHYLTRANSFERASE | 
| 2hmy | SAM | Haemophilus haemolyticus | PROTEIN (CYTOSINE-SPECIFIC METHYLTRANSFERASEHHAI) | 
| 2hnd | NVP | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 2hny | NVP | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 2hrc | CHD | Homo sapiens | FERROCHELATASE | 
| 2hre | CHD | Homo sapiens | FERROCHELATASE | 
| 2hs1 | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 2hs2 | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 2htq | ZMR | Influenza A virus | NEURAMINIDASE | 
| 2htu | BCZ | Influenza A virus | NEURAMINIDASE | 
| 2hu6 | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 2hw2 | RFP | Mycolicibacterium smegmatis | RIFAMPIN ADP-RIBOSYL TRANSFERASE | 
| 2hx2 | H4B | Bos taurus | NITRIC-OXIDE SYNTHASE | 
| 2hx3 | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 2hx4 | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 2hxf | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 2hxh | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 2hyy | STI | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE ABL1 | 
| 2hzq | STR | Homo sapiens | APOLIPOPROTEIN D | 
| 2i2z | SAL | Homo sapiens | SERUM ALBUMIN | 
| 2i30 | SAL | Homo sapiens | SERUM ALBUMIN | 
| 2i91 | ACT | Xenopus laevis | 60 KDA SS-A/RO RIBONUCLEOPROTEIN | 
| 2idk | C2F | Rattus norvegicus | GLYCINE N-METHYLTRANSFERASE | 
| 2idw | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 2ien | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 2ieo | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 2igt | SAM | Agrobacterium fabrum | SAM DEPENDENT METHYLTRANSFERASE | 
| 2ij7 | TPF | Mycobacterium tuberculosis | CYTOCHROME P450 121 | 
| 2ine | PAC | Homo sapiens | ALDOSE REDUCTASE | 
| 2isf | PAC | Homo sapiens | ALDOSE REDUCTASE | 
| 2it4 | PPF | Homo sapiens | CARBONIC ANHYDRASE 1 | 
| 2ito | IRE | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 2ity | IRE | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 2itz | IRE | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 2ivu | ZD6 | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASERECEPTOR RET PRECURSOR | 
| 2iwk | CU | Achromobacter cycloclastes | NITROUS OXIDE REDUCTASE | 
| 2iyf | ERY | Streptomyces antibioticus | OLEANDOMYCIN GLYCOSYLTRANSFERASE | 
| 2izq | DVA | Brevibacillus brevis | GRAMICIDIN D | 
| 2j0d | ERY | Homo sapiens | CYTOCHROME P450 3A4 | 
| 2j0h | ACH | Homo sapiens | FICOLIN-2 | 
| 2j1g | SC2 | Homo sapiens | FICOLIN-2 | 
| 2j2p | SC2 | Homo sapiens | FICOLIN-2 | 
| 2j5m | ACT | Leptoxyphium fumago | CHLOROPEROXIDASE | 
| 2j7x | EST | Rattus norvegicus | ESTROGEN RECEPTOR BETA | 
| 2j9c | ACT | Methanocaldococcus jannaschii | HYPOTHETICAL NITROGEN REGULATORY PII-LIKEPROTEIN MJ0059 | 
| 2j9d | ACT | Methanocaldococcus jannaschii | HYPOTHETICAL NITROGEN REGULATORY PII-LIKEPROTEIN MJ0059 | 
| 2jap | J01 | Streptomyces clavuligerus | CLAVALDEHYDE DEHYDROGENASE | 
| 2jb7 | ACT | Pyrobaculum aerophilum | HYPOTHETICAL PROTEIN PAE2307 | 
| 2jc9 | ADN | Homo sapiens | CYTOSOLIC PURINE 5'-NUCLEOTIDASE | 
| 2jfa | CCS | Homo sapiens | ESTROGEN RECEPTOR | 
| 2jfa | RAL | Homo sapiens;synthetic construct | COREPRESSOR PEPTIDE;ESTROGEN RECEPTOR | 
| 2jih | 097 | Homo sapiens | ADAMTS-1 | 
| 2jj8 | AZZ | Drosophila melanogaster | DEOXYNUCLEOSIDE KINASE | 
| 2jjp | KLN | Saccharopolyspora erythraea | CYTOCHROME P450 113A1 | 
| 2jkc | TRP | Pseudomonas fluorescens | FLAVIN-DEPENDENT TRYPTOPHAN HALOGENASE PRNA | 
| 2jkj | CLM | Escherichia coli | DR HEMAGGLUTININ STRUCTURAL SUBUNIT | 
| 2jkl | CLM | Escherichia coli | DR HEMAGGLUTININ STRUCTURAL SUBUNIT | 
| 2jn3 | JN3 | Gallus gallus | FATTY ACID-BINDING PROTEIN, LIVER | 
| 2jst | HLT | FOUR-ALPHA-HELIX BUNDLE | |
| 2jt9 | ACA | 5-MER IMMUNOSUPPRESSORY PEPTIDE FROMCYCLOLINOPEPTIDE X;MODIFIED 16-MER IMMUNOSUPPRESSORY PEPTIDEFROM HOMEOTIC PROTEIN ANTENNAPEDIA | |
| 2kad | 308 | Influenza A virus | TRANSMEMBRANE PEPTIDE OF MATRIX PROTEIN 2 | 
| 2kaw | SUZ | Mus musculus | SEGMENT POLARITY PROTEIN DISHEVELLED HOMOLOGDVL-1 | 
| 2kce | D16 | Escherichia coli | THYMIDYLATE SYNTHASE | 
| 2ki5 | AC2 | Human alphaherpesvirus 1 | PROTEIN (THYMIDINE KINASE) | 
| 2kot | ANW | Homo sapiens | PROTEIN S100-A13 | 
| 2kqd | ADN | Homo sapiens | APRATAXIN AND PNK-LIKE FACTOR | 
| 2kqe | ADN | Homo sapiens | APRATAXIN AND PNK-LIKE FACTOR | 
| 2kqt | 308 | Influenza A virus | M2 PROTEIN | 
| 2kug | HLT | Homo sapiens | CALMODULIN | 
| 2kuh | HLT | Homo sapiens | CALMODULIN | 
| 2l8m | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 2lbd | REA | Homo sapiens | RETINOIC ACID RECEPTOR GAMMA | 
| 2lh6 | NIO | Lupinus luteus | LEGHEMOGLOBIN A (NICOTINATE MET) | 
| 2lh8 | VIB | Mesocricetus auratus | MAJOR PRION PROTEIN | 
| 2ljc | RIM | Influenza A virus;Influenza B virus | M2 PROTEIN, BM2 PROTEIN CHIMERA | 
| 2m2o | DHI | Homo sapiens | INSULIN B CHAIN | 
| 2m2p | DHI | Homo sapiens | INSULIN B CHAIN | 
| 2m56 | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 2m9p | BEZ | ;Dengue virus | SERINE PROTEASE INHIBITOR;SERINE PROTEASE SUBUNIT NS2B, SERINE PROTEASENS3 | 
| 2m9q | BEZ | ;Dengue virus | SERINE PROTEASE INHIBITOR;SERINE PROTEASE SUBUNIT NS2B, SERINE PROTEASENS3 | 
| 2mji | KTR | Homo sapiens | FATTY ACID-BINDING PROTEIN, INTESTINAL | 
| 2n27 | 4DY | Homo sapiens | CALMODULIN | 
| 2nmy | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 2nmz | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 2nnh | 9CR | Homo sapiens | CYTOCHROME P450 2C8 | 
| 2nni | MTK | Homo sapiens | CYTOCHROME P450 2C8 | 
| 2nnj | 225 | Homo sapiens | CYTOCHROME P450 2C8 | 
| 2nnk | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 2nnp | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 2no0 | GEO | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 2no6 | ETV | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 2noa | 3TC | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 2nod | H4B | Mus musculus | NITRIC OXIDE SYNTHASE | 
| 2npn | SAM | Corynebacterium diphtheriae | PUTATIVE COBALAMIN SYNTHESIS RELATED PROTEIN | 
| 2nse | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 2nsi | H4B | Homo sapiens | PROTEIN (NITRIC OXIDE SYNTHASE) | 
| 2nv4 | ACT | Archaeoglobus fulgidus | UPF0066 PROTEIN AF_0241 | 
| 2nv4 | SAM | Archaeoglobus fulgidus | UPF0066 PROTEIN AF_0241 | 
| 2nxe | SAM | Thermus thermophilus | RIBOSOMAL PROTEIN L11 METHYLTRANSFERASE | 
| 2nyr | SVR | Homo sapiens | NAD-DEPENDENT DEACETYLASE SIRTUIN-5 | 
| 2nyu | SAM | Homo sapiens | PUTATIVE RIBOSOMAL RNA METHYLTRANSFERASE 2 | 
| 2o01 | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 2o01 | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 2o02 | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 2o1o | RIS | Cryptosporidium parvum | PUTATIVE FARNESYL PYROPHOSPHATE SYNTHASE | 
| 2o4k | DR7 | Human immunodeficiency virus 1 | PROTEASE | 
| 2o4l | TPV | Human immunodeficiency virus 1 | PROTEASE | 
| 2o4n | TPV | Human immunodeficiency virus 1 | PROTEASE | 
| 2o4p | TPV | Human immunodeficiency virus 1 | PROTEASE | 
| 2o4s | AB1 | Human immunodeficiency virus 1 | PROTEASE | 
| 2o5y | STR | Homo sapiens;Mus musculus | CHIMERIC ANTIBODY FAB 1E9-DB3 | 
| 2o7o | DXT | Escherichia coli | TETRACYCLINE REPRESSOR PROTEIN CLASS D | 
| 2oa1 | ADN | Lechevalieria aerocolonigenes | TRYPTOPHAN HALOGENASE | 
| 2oa1 | TRP | Lechevalieria aerocolonigenes | TRYPTOPHAN HALOGENASE | 
| 2oax | SNL | Homo sapiens | MINERALOCORTICOID RECEPTOR | 
| 2obv | SAM | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHETASE ISOFORMTYPE-1 | 
| 2oc8 | HU5 | Hepacivirus C | HEPATITIS C VIRUS | 
| 2ocf | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 2ocu | TYL | Bos taurus | LACTOTRANSFERRIN | 
| 2od9 | NCA | Saccharomyces cerevisiae | NAD-DEPENDENT DEACETYLASE HST2 | 
| 2ogy | C2F | Moorella thermoacetica | 5-METHYLTETRAHYDROFOLATE CORRINOID/IRONSULFUR PROTEIN METHYLTRANSFERASE | 
| 2oip | MTX | Cryptosporidium hominis | CHAIN A, CRYSTAL STRUCTURE OF DHFR | 
| 2oiq | STI | Gallus gallus | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC | 
| 2ok6 | BEZ | Alcaligenes faecalis | AROMATIC AMINE DEHYDROGENASE, LARGE SUBUNIT;AROMATIC AMINE DEHYDROGENASE, SMALL SUBUNIT | 
| 2okc | SAM | Bacteroides thetaiotaomicron | TYPE I RESTRICTION ENZYME STYSJI M PROTEIN | 
| 2old | IPH | Homo sapiens | BENCE JONES KWR PROTEIN - IMMUNOGLOBULINLIGHT CHAIN | 
| 2omb | IPH | Homo sapiens | BENCE JONES KWR PROTEIN - IMMUNOGLOBULINLIGHT CHAIN | 
| 2omn | IPH | Homo sapiens | BENCE JONES KWR PROTEIN - IMMUNOGLOBULINLIGHT CHAIN | 
| 2opx | DXC | Escherichia coli | ALDEHYDE DEHYDROGENASE A | 
| 2oqe | CU | Ogataea angusta | PEROXISOMAL COPPER AMINE OXIDASE | 
| 2otf | 2TN | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 2oth | IMN | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 2oth | NIM | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 2otv | NCA | Bos taurus | CATIONIC TRYPSIN | 
| 2oub | 2TN | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 2ouz | C3D | Homo sapiens | ESTROGEN RECEPTOR | 
| 2ow9 | HAE | Homo sapiens | COLLAGENASE 3 | 
| 2owc | ACR | Thermus thermophilus | 4-ALPHA-GLUCANOTRANSFERASE | 
| 2oww | ACR | Thermus thermophilus | 4-ALPHA-GLUCANOTRANSFERASE | 
| 2oxt | SAM | Meaban virus | NUCLEOSIDE-2'-O-METHYLTRANSFERASE | 
| 2oz7 | CA4 | Homo sapiens | ANDROGEN RECEPTOR | 
| 2ozr | HAE | Homo sapiens | COLLAGENASE 3 | 
| 2p02 | SAM | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHETASE ISOFORMTYPE-2 | 
| 2p16 | GG2 | Homo sapiens | COAGULATION FACTOR X (EC 3.4.21.6) (STUARTFACTOR) (STUART-PROWER FACTOR) | 
| 2p2f | ACT | Salmonella enterica | ACETYL-COENZYME A SYNTHETASE | 
| 2p4n | TA1 | Bos taurus | TUBULIN BETA CHAIN | 
| 2pcp | 1PC | Mus musculus | IMMUNOGLOBULIN | 
| 2pgf | ADN | Plasmodium vivax | ADENOSINE DEAMINASE | 
| 2pgr | DCF | Plasmodium vivax | ADENOSINE DEAMINASE | 
| 2pgz | COC | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 2ph9 | GNT | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 2piv | T3 | Homo sapiens | ANDROGEN RECEPTOR | 
| 2piw | T3 | Homo sapiens | ANDROGEN RECEPTOR | 
| 2pk4 | ACA | Homo sapiens | HUMAN PLASMINOGEN KRINGLE 4 | 
| 2pkk | 2FA | Mycobacterium tuberculosis | ADENOSINE KINASE | 
| 2pkm | ADN | Mycobacterium tuberculosis | ADENOSINE KINASE | 
| 2pl0 | STI | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE LCK | 
| 2plw | SAM | Plasmodium falciparum | RIBOSOMAL RNA METHYLTRANSFERASE, PUTATIVE | 
| 2pnc | CLU | Bos taurus | COPPER AMINE OXIDASE, LIVER ISOZYME | 
| 2pnj | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 2po5 | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 2po7 | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 2pou | I7A | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 2prg | BRL | Homo sapiens | PEROXISOME PROLIFERATOR ACTIVATED RECEPTORGAMMA | 
| 2pws | IBP | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 2pxc | SAM | Murray Valley encephalitis virus | GENOME POLYPROTEIN [CONTAINS: CAPSID PROTEINC (CORE PROTEIN); ENVELOPE PROTEIN M (MATRIX PROTEIN); MAJOR ENVELOPE PROTEIN E; NON-STRUCTURAL PROTEIN 1 (NS1); NON-STRUCTURAL PROTEIN 2A (NS2A); FLAVIVIRIN PROTEASE NS2B REGULATORY SUBUNIT; FLAVIVIRIN PROTEASE NS3 CATALYTIC SUBUNIT; NON-STRUCTURAL PROTEIN 4A (NS4A); NON-STRUCTURAL PROTEIN 4B (NS4B); RNA-DIRECTED RNA POLYMERASE (EC 2.7.7.48)(NS5)] | 
| 2pym | 1UN | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 2pyn | 1UN | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 2q0i | BEZ | Pseudomonas aeruginosa | QUINOLONE SIGNAL RESPONSE PROTEIN | 
| 2q0j | BEZ | Pseudomonas aeruginosa | QUINOLONE SIGNAL RESPONSE PROTEIN | 
| 2q2h | ACT | Agrobacterium fabrum | SECRETION CHAPERONE, PHAGE-DISPLAY DERIVEDPEPTIDE | 
| 2q58 | ZOL | Cryptosporidium parvum | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 2q5k | AB1 | Human immunodeficiency virus 1 | PROTEASE | 
| 2q63 | 1UN | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 2q64 | 1UN | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 2q6f | 010 | Avian coronavirus;synthetic construct | INFECTIOUS BRONCHITIS VIRUS (IBV) MAINPROTEASE;N-[(5-METHYLISOXAZOL-3-YL)CARBONYL]ALANYL-L-VALYL-N~1~-((1R,2Z)-4-(BENZYLOXY)-4-OXO-1-{[(3R)-2-OXOPYRROLIDIN-3-YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE | 
| 2q6h | CXX | Aquifex aeolicus | TRANSPORTER | 
| 2q6k | ADN | Salinispora tropica | CHLORINASE | 
| 2q6o | SAM | Salinispora tropica | HYPOTHETICAL PROTEIN | 
| 2q6u | BEZ | Streptomyces tendae | NIKD PROTEIN | 
| 2q72 | IXX | Aquifex aeolicus | TRANSPORTER | 
| 2q7i | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 2q7j | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 2q7k | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 2q7l | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 2q83 | ADN | Bacillus subtilis | YTAA PROTEIN | 
| 2q8h | TF4 | Homo sapiens | [PYRUVATE DEHYDROGENASE [LIPOAMIDE]] KINASEISOZYME 1 | 
| 2q9r | BEZ | Shewanella baltica | PROTEIN OF UNKNOWN FUNCTION | 
| 2qak | 1UN | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 2qb4 | DSM | Aquifex aeolicus | TRANSPORTER | 
| 2qbl | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2qbm | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2qbn | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2qbo | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2qd2 | CHD | Homo sapiens | FERROCHELATASE | 
| 2qd3 | CHD | Homo sapiens | FERROCHELATASE | 
| 2qd4 | CHD | Homo sapiens | FERROCHELATASE | 
| 2qd5 | CHD | Homo sapiens | FERROCHELATASE | 
| 2qe6 | SAM | Thermobifida fusca | UNCHARACTERIZED PROTEIN TFU_2867 | 
| 2qeb | HSM | Anopheles gambiae | D7R4 PROTEIN | 
| 2qei | CXX | Aquifex aeolicus | TRANSPORTER | 
| 2qeo | LNR | Anopheles gambiae | D7R4 PROTEIN | 
| 2qeu | ACT | Paraburkholderia xenovorans | PUTATIVE CARBOXYMUCONOLACTONE DECARBOXYLASE | 
| 2qhc | AB1 | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 2qhf | ACT | Mycobacterium tuberculosis | CHORISMATE SYNTHASE | 
| 2qhf | NCA | Mycobacterium tuberculosis | CHORISMATE SYNTHASE | 
| 2qis | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHETASE | 
| 2qju | DSM | Aquifex aeolicus | TRANSPORTER | 
| 2qk8 | MTX | Bacillus anthracis | DIHYDROFOLATE REDUCTASE | 
| 2ql8 | BEZ | Lactobacillus paracasei | PUTATIVE REDOX PROTEIN | 
| 2qm9 | TDZ | Mus musculus | FATTY ACID-BINDING PROTEIN, ADIPOCYTE | 
| 2qmj | ACR | Homo sapiens | MALTASE-GLUCOAMYLASE, INTESTINAL | 
| 2qmm | SAM | Archaeoglobus fulgidus | UPF0217 PROTEIN AF_1056 | 
| 2qmq | BEZ | Mus musculus | PROTEIN NDRG2 | 
| 2qmz | LDP | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE | 
| 2qo4 | CHD | Danio rerio | LIVER-BASIC FATTY ACID BINDING PROTEIN | 
| 2qo5 | CHD | Danio rerio | LIVER-BASIC FATTY ACID BINDING PROTEIN | 
| 2qo6 | CHD | Danio rerio | LIVER-BASIC FATTY ACID BINDING PROTEIN | 
| 2qpu | QPS | Hordeum vulgare | ALPHA-AMYLASE TYPE A ISOZYME | 
| 2qqc | AG2 | Methanocaldococcus jannaschii | PYRUVOYL-DEPENDENT ARGININE DECARBOXYLASE (EC4.1.1.19) (PVLARGDC) | 
| 2qqd | AG2 | Methanocaldococcus jannaschii | PYRUVOYL-DEPENDENT ARGININE DECARBOXYLASE (EC4.1.1.19) (PVLARGDC) | 
| 2qqg | NCA | Saccharomyces cerevisiae | NAD-DEPENDENT DEACETYLASE HST2 | 
| 2qqt | AIN | Bos taurus | LACTOPEROXIDASE | 
| 2qr2 | VK3 | Homo sapiens | PROTEIN (QUINONE REDUCTASE TYPE 2) | 
| 2qwx | ML1 | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 2qx4 | ML1 | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 2qx6 | ML1 | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 2qxs | RAL | Homo sapiens | ESTROGEN RECEPTOR | 
| 2r2v | ACT | Saccharomyces cerevisiae | GCN4 LEUCINE ZIPPER | 
| 2r3a | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SUV39H2 | 
| 2r5p | MK1 | Human immunodeficiency virus 1 | PROTEASE | 
| 2r5q | 1UN | Human immunodeficiency virus 1 | PROTEASE | 
| 2r6v | NCA | Pyrococcus horikoshii | UNCHARACTERIZED PROTEIN PH0856 | 
| 2rct | RTL | Homo sapiens | RETINOL-BINDING PROTEIN II, CELLULAR | 
| 2rdd | AIC | Escherichia coli | ACRIFLAVINE RESISTANCE PROTEIN B | 
| 2rez | ACT | Streptomyces glaucescens | MULTIFUNCTIONALCYCLASE-DEHYDRATASE-3-O-METHYL TRANSFERASETCMN | 
| 2rgu | 356 | Homo sapiens | DIPEPTIDYL PEPTIDASE 4 | 
| 2rhm | BEZ | Chloroflexus aurantiacus | PUTATIVE KINASE | 
| 2rin | ACH | Sinorhizobium meliloti | PUTATIVE GLYCINE BETAINE-BINDING ABCTRANSPORTER PROTEIN | 
| 2riw | T44 | Homo sapiens | THYROXINE-BINDING GLOBULIN | 
| 2rk8 | PPF | Rattus norvegicus | PHOSPHOENOLPYRUVATE CARBOXYKINASE, CYTOSOLIC[GTP] | 
| 2rkf | AB1 | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 2rkg | AB1 | Human immunodeficiency virus 1 | PROTEASE RETROPEPSIN | 
| 2rlc | CHD | Clostridium perfringens | CHOLOYLGLYCINE HYDROLASE | 
| 2rlc | GLY | Clostridium perfringens | CHOLOYLGLYCINE HYDROLASE | 
| 2rlf | RIM | Influenza A virus | MATRIX PROTEIN 2 | 
| 2rox | T44 | Homo sapiens | TRANSTHYRETIN | 
| 2tct | CTC | Escherichia coli | TETRACYCLINE REPRESSOR | 
| 2tod | DMO | Trypanosoma brucei | PROTEIN (ORNITHINE DECARBOXYLASE) | 
| 2trt | TAC | Escherichia coli | TETRACYCLINE REPRESSOR CLASS D | 
| 2tsr | D16 | Rattus norvegicus | THYMIDYLATE SYNTHASE | 
| 2uvn | ECN | Mycobacterium tuberculosis | CYTOCHROME P450 130 | 
| 2uxo | TAC | Pseudomonas putida | HTH-TYPE TRANSCRIPTIONAL REGULATOR TTGR | 
| 2uxp | CLM | Pseudomonas putida | HTH-TYPE TRANSCRIPTIONAL REGULATOR TTGR | 
| 2uy4 | AZM | Saccharomyces cerevisiae | ENDOCHITINASE | 
| 2uyq | SAM | Mycobacterium leprae | HYPOTHETICAL PROTEIN ML2640 | 
| 2uz2 | ACT | Xenopus tropicalis | XENAVIDIN | 
| 2v0g | LEU | Thermus thermophilus | AMINOACYL-TRNA SYNTHETASE | 
| 2v0m | KLN | Homo sapiens | CYTOCHROME P450 3A4 | 
| 2v0z | C41 | Homo sapiens | RENIN | 
| 2v2g | BEZ | Arenicola marina | PEROXIREDOXIN 6 | 
| 2v32 | BEZ | Arenicola marina | PEROXIREDOXIN 6 | 
| 2v3d | NBV | Homo sapiens | GLUCOSYLCERAMIDASE | 
| 2v3k | SAM | Saccharomyces cerevisiae | ESSENTIAL FOR MITOTIC GROWTH 1 | 
| 2v41 | BEZ | Arenicola marina | PEROXIREDOXIN 6. | 
| 2v57 | PRL | Mycolicibacterium smegmatis | TETR FAMILY TRANSCRIPTIONAL REPRESSOR LFRR | 
| 2v7b | BEZ | Paraburkholderia xenovorans | BENZOATE-COENZYME A LIGASE | 
| 2v7u | SAM | Streptomyces cattleya | 5'-FLUORO-5'-DEOXY ADENOSINE SYNTHETASE | 
| 2v95 | HCY | Rattus norvegicus | CORTICOSTEROID-BINDING GLOBULIN | 
| 2vav | CSC | Acremonium chrysogenum | ACETYL-COA--DEACETYLCEPHALOSPORIN CACETYLTRANSFERASE | 
| 2vax | CSC | Acremonium chrysogenum | ACETYL-COA--DEACETYLCEPHALOSPORIN CACETYLTRANSFERASE | 
| 2vcd | RAP | Legionella pneumophila | OUTER MEMBRANE PROTEIN MIP | 
| 2vct | ASD | Homo sapiens | GLUTATHIONE S-TRANSFERASE A2 | 
| 2vcv | ASD | Homo sapiens | GLUTATHIONE S-TRANSFERASE A3 | 
| 2vd0 | D27 | Homo sapiens | GLUTATHIONE-REQUIRING PROSTAGLANDIN DSYNTHASE | 
| 2vdb | NPS | Homo sapiens | SERUM ALBUMIN | 
| 2vdm | AGG | Homo sapiens | INTEGRIN ALPHA-IIB;INTEGRIN BETA-3 | 
| 2vdv | SAM | Saccharomyces cerevisiae | TRNA (GUANINE-N(7)-)-METHYLTRANSFERASE | 
| 2vdy | HCY | Homo sapiens | CORTICOSTEROID-BINDING GLOBULIN | 
| 2ve3 | REA | Synechocystis sp. PCC 6803 | PUTATIVE CYTOCHROME P450 120 | 
| 2vft | SOR | Streptomyces coelicolor | XYLITOL OXIDASE | 
| 2vfu | MTL | Streptomyces coelicolor | XYLITOL OXIDASE | 
| 2vh3 | DAH | Polypedates leucomystax | RANASMURFIN | 
| 2vin | 505 | Homo sapiens | UROKINASE-TYPE PLASMINOGEN ACTIVATOR CHAIN B | 
| 2vj1 | BEZ | Severe acute respiratory syndrome-relatedcoronavirus | SARS CORONAVIRUS MAIN PROTEINASE | 
| 2vke | TAC | Escherichia coli | TETRACYCLINE REPRESSOR PROTEIN CLASS D | 
| 2vl2 | BEZ | Homo sapiens | PEROXIREDOXIN-5 | 
| 2vmy | FFO | Geobacillus stearothermophilus | SERINE HYDROXYMETHYLTRANSFERASE | 
| 2vmy | GLY | Geobacillus stearothermophilus | SERINE HYDROXYMETHYLTRANSFERASE | 
| 2vn0 | TDZ | Homo sapiens | CYTOCHROME P450 2C8 | 
| 2vn1 | FK5 | Plasmodium falciparum | 70 KDA PEPTIDYLPROLYL ISOMERASE | 
| 2vou | ACT | Paenarthrobacter nicotinovorans | 2,6-DIHYDROXYPYRIDINE HYDROXYLASE | 
| 2vpp | GEO | Drosophila melanogaster | DEOXYNUCLEOSIDE KINASE | 
| 2vq5 | LDP | Thalictrum flavum | S-NORCOCLAURINE SYNTHASE | 
| 2vqy | PAR | Escherichia coli | AAC(6')-IB | 
| 2vtb | ACT | Arabidopsis thaliana | CRYPTOCHROME DASH | 
| 2vuf | FUA | Homo sapiens | SERUM ALBUMIN | 
| 2vx9 | RBF | Halobacterium salinarum | DODECIN | 
| 2vxa | RBF | Halorhodospira halophila | DODECIN | 
| 2vzs | GCS | Amycolatopsis orientalis | EXO-BETA-D-GLUCOSAMINIDASE | 
| 2vzv | GCS | Amycolatopsis orientalis | EXO-BETA-D-GLUCOSAMINIDASE | 
| 2w03 | ADN | Dickeya chrysanthemi | ACSD | 
| 2w0q | CU | Escherichia coli | COPPER AMINE OXIDASE | 
| 2w13 | ACT | Bothrops asper | ZINC METALLOPROTEINASE BAP1 | 
| 2w1b | DXC | Escherichia coli | ACRIFLAVIN RESISTANCE PROTEIN B | 
| 2w26 | RIV | Homo sapiens | ACTIVATED FACTOR XA HEAVY CHAIN | 
| 2w3a | TOP | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 2w3b | FOL | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 2w3m | FOL | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 2w3v | TOP | Mycobacterium avium | DIHYDROFOLATE REDUCTASE | 
| 2w4x | STZ | Bacteroides thetaiotaomicron | O-GLCNACASE BT_4395 | 
| 2w8y | 486 | Homo sapiens | PROGESTERONE RECEPTOR | 
| 2w8y | NDR | Homo sapiens | PROGESTERONE RECEPTOR | 
| 2w98 | P1Z | Homo sapiens | PROSTAGLANDIN REDUCTASE 2 | 
| 2w9g | TOP | Staphylococcus aureus | DIHYDROFOLATE REDUCTASE | 
| 2w9h | TOP | Staphylococcus aureus | DIHYDROFOLATE REDUCTASE | 
| 2w9s | TOP | Staphylococcus aureus | DIHYDROFOLATE REDUCTASE TYPE 1 FROM TN4003 | 
| 2wa2 | SAM | Modoc virus | NON-STRUCTURAL PROTEIN 5 | 
| 2wb9 | CYS | Fasciola hepatica | GLUTATHIONE TRANSFERASE SIGMA CLASS | 
| 2wbe | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 2wd9 | IBP | Homo sapiens | ACYL-COENZYME A SYNTHETASE ACSM2A,MITOCHONDRIAL | 
| 2wek | DIF | Homo sapiens | ZINC-BINDING ALCOHOL DEHYDROGENASEDOMAIN-CONTAINING PROTEIN 2 | 
| 2wet | TRP | Streptomyces rugosporus | TRYPTOPHAN 5-HALOGENASE | 
| 2wey | EV1 | Homo sapiens | CAMP AND CAMP-INHIBITED CGMP 3', 5'-CYCLICPHOSPHODIESTERASE | 
| 2wgj | VGH | Homo sapiens | HEPATOCYTE GROWTH FACTOR RECEPTOR | 
| 2wko | CU | Homo sapiens | SUPEROXIDE DISMUTASE [CU-ZN] | 
| 2wlj | SPM | Magnetospirillum magnetotacticum | POTASSIUM CHANNEL | 
| 2wlk | SPM | Magnetospirillum magnetotacticum | ATP-SENSITIVE INWARD RECTIFIER POTASSIUMCHANNEL 10 | 
| 2wm3 | NFL | Homo sapiens | NMRA-LIKE FAMILY DOMAIN CONTAINING PROTEIN 1 | 
| 2wnc | TKT | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 2wq5 | MIY | Naja naja | PHOSPHOLIPASE A2, ACIDIC | 
| 2wsc | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 2wsc | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 2wse | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 2wse | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 2wsf | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 2wsf | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 2wt9 | NIO | Acinetobacter baumannii | NICOTINAMIDASE | 
| 2wuz | TPF | Trypanosoma cruzi | LANOSTEROL 14-ALPHA-DEMETHYLASE, PUTATIVE | 
| 2wv2 | TPF | Trypanosoma brucei | LANOSTEROL 14-ALPHA-DEMETHYLASE | 
| 2wx2 | TPF | Trypanosoma cruzi | LANOSTEROL 14-ALPHA-DEMETHYLASE | 
| 2x08 | ASC | Saccharomyces cerevisiae | CYTOCHROME C PEROXIDASE, MITOCHONDRIAL | 
| 2x0p | ADN | Bordetella bronchiseptica | ALCALIGIN BIOSYNTHESIS PROTEIN | 
| 2x0y | X0T | Clostridium perfringens | O-GLCNACASE NAGJ | 
| 2x1l | ADN | Mycolicibacterium smegmatis | METHIONYL-TRNA SYNTHETASE | 
| 2x2i | QPS | Gracilariopsis lemaneiformis | ALPHA-1,4-GLUCAN LYASE ISOZYME 1 | 
| 2x2n | X2N | Trypanosoma brucei | LANOSTEROL 14-ALPHA-DEMETHYLASE | 
| 2x45 | HSM | Argas reflexus | ALLERGEN ARG R 1 | 
| 2x7h | PFN | Homo sapiens | ZINC-BINDING ALCOHOL DEHYDROGENASEDOMAIN-CONTAINING PROTEIN 2 | 
| 2x8o | OIN | Streptococcus pneumoniae | CHOLINE-BINDING PROTEIN F | 
| 2x8p | OIN | Streptococcus pneumoniae | CHOLINE-BINDING PROTEIN F | 
| 2x8z | X8Z | Drosophila melanogaster | ANGIOTENSIN CONVERTING ENZYME | 
| 2x91 | LPR | Drosophila melanogaster | ANGIOTENSIN CONVERTING ENZYME | 
| 2x9g | LYA | Trypanosoma brucei | PTERIDINE REDUCTASE | 
| 2x9v | TMQ | Trypanosoma brucei | PTERIDINE REDUCTASE | 
| 2xad | GCS | Actinoplanes teichomyceticus;Nonomuraea gerenzanensis | N-ACYL GLM PEUDO-TEICOPLANIN DEACETYLASE;TEICOPLANIN | 
| 2xat | CLM | Pseudomonas aeruginosa | XENOBIOTIC ACETYLTRANSFERASE | 
| 2xct | CPF | Staphylococcus aureus;synthetic construct | DNA GYRASE SUBUNIT B, DNA GYRASE SUBUNIT A | 
| 2xdc | DVA | Brevibacillus brevis | GRAMICIDIN A | 
| 2xf3 | J01 | Streptomyces clavuligerus | ORF12 | 
| 2xff | QPS | Hordeum vulgare | BETA-AMYLASE | 
| 2xfh | CL6 | Saccharopolyspora erythraea | ERYTHROMYCIN B/D C-12 HYDROXYLASE | 
| 2xfs | J01 | Streptomyces clavuligerus | ORF12 | 
| 2xh9 | J01 | Streptomyces clavuligerus | ORF12 | 
| 2xin | SOR | Actinoplanes missouriensis | D-XYLOSE ISOMERASE | 
| 2xkk | MFX | Acinetobacter baumannii;synthetic construct | DNA;TOPOISOMERASE IV | 
| 2xkw | P1B | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 2xn3 | ID8 | Homo sapiens | THYROXINE-BINDING GLOBULIN | 
| 2xn5 | FUN | Homo sapiens | THYROXINE-BINDING GLOBULIN | 
| 2xn6 | T44 | Homo sapiens | THYROXINE-BINDING GLOBULIN | 
| 2xn7 | T44 | Homo sapiens | THYROXINE-BINDING GLOBULIN | 
| 2xnr | ACT | Saccharomyces cerevisiae | NUCLEAR POLYADENYLATED RNA-BINDING PROTEIN 3 | 
| 2xp2 | VGH | Homo sapiens | TYROSINE-PROTEIN KINASE RECEPTOR | 
| 2xpv | MIY | Escherichia coli | TETRACYCLINE REPRESSOR PROTEIN CLASS D | 
| 2xpw | OTC | Escherichia coli | TETRACYCLINE REPRESSOR PROTEIN CLASS D | 
| 2xrh | NIO | Helicobacter pylori | PROTEIN HP0721 | 
| 2xrl | DXT | Escherichia coli | TETRACYCLINE REPRESSOR PROTEIN CLASS D | 
| 2xrz | ACT | Methanosarcina mazei | DEOXYRIBODIPYRIMIDINE PHOTOLYASE | 
| 2xtk | AZM | Aspergillus fumigatus | CLASS III CHITINASE CHIA1 | 
| 2xud | DME | Mus musculus | ACETYLCHOLINESTERASE | 
| 2xxg | CU | Achromobacter xylosoxidans | DISSIMILATORY COPPER-CONTAINING NITRITEREDUCTASE | 
| 2xyt | TC9 | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 2xz5 | ACH | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 2y00 | Y00 | Meleagris gallopavo | BETA-1 ADRENERGIC RECEPTOR | 
| 2y01 | Y00 | Meleagris gallopavo | BETA-1 ADRENERGIC RECEPTOR | 
| 2y03 | 5FW | Meleagris gallopavo | BETA-1 ADRENERGIC RECEPTOR | 
| 2y04 | 68H | Meleagris gallopavo | BETA-1 ADRENERGIC RECEPTOR | 
| 2y05 | RAL | Homo sapiens | PROSTAGLANDIN REDUCTASE 1 | 
| 2y37 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 2y4n | PAC | Burkholderia cenocepacia | PHENYLACETATE-COENZYME A LIGASE | 
| 2y5m | DVA | Brevibacillus brevis | VAL-GRAMICIDIN A | 
| 2y69 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 6A2;CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 2y69 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2y69 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2y69 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2y6n | DVA | Brevibacillus brevis | VAL-GRAMICIDIN A | 
| 2y6o | 1N1 | Mus musculus | EPHRIN TYPE-A RECEPTOR 4 | 
| 2y6r | CTC | Bacteroides thetaiotaomicron | TETX2 PROTEIN | 
| 2y7h | SAM | Escherichia coli | TYPE I RESTRICTION ENZYME ECOKI M PROTEIN | 
| 2y7j | B49 | Homo sapiens | PHOSPHORYLASE B KINASE GAMMA CATALYTIC CHAIN,TESTIS/LIVER ISOFORM | 
| 2y7k | SAL | Burkholderia sp. DNT | LYSR-TYPE REGULATORY PROTEIN | 
| 2y7p | SAL | Burkholderia sp. DNT | LYSR-TYPE REGULATORY PROTEIN | 
| 2y7w | SAL | Burkholderia sp. DNT | LYSR-TYPE REGULATORY PROTEIN | 
| 2ya7 | ZMR | Streptococcus pneumoniae | NEURAMINIDASE A | 
| 2ycj | C2F | Carboxydothermus hydrogenoformans | 5-METHYLTETRAHYDROFOLATE CORRINOID/IRONSULFUR PROTEIN METHYLTRANSFERASE | 
| 2ydo | ADN | Homo sapiens | ADENOSINE RECEPTOR A2A | 
| 2yfb | ACT | Pseudomonas putida | METHYL-ACCEPTING CHEMOTAXIS TRANSDUCER | 
| 2yfx | VGH | Homo sapiens | TYROSINE-PROTEIN KINASE RECEPTOR | 
| 2ygn | ACT | Homo sapiens | WNT INHIBITORY FACTOR 1 | 
| 2ygn | PCF | Homo sapiens | WNT INHIBITORY FACTOR 1 | 
| 2ygo | PCF | Homo sapiens | WNT INHIBITORY FACTOR 1 | 
| 2ygp | PCF | Homo sapiens | WNT INHIBITORY FACTOR 1 | 
| 2ygq | PCF | Homo sapiens | WNT INHIBITORY FACTOR 1 | 
| 2yhd | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 2yja | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 2yk1 | NCT | Homo sapiens | FAB FRAGMENT, HEAVY CHAIN;FAB FRAGMENT, LIGHT CHAIN | 
| 2yld | ASC | Achromobacter xylosoxidans | CYTOCHROME C' | 
| 2ylg | ASC | Achromobacter xylosoxidans | CYTOCHROME C' | 
| 2ylo | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 2ylp | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 2ylq | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 2yme | CWB | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 2yoe | FL7 | Dickeya chrysanthemi | CYS-LOOP LIGAND-GATED ION CHANNEL | 
| 2yqz | SAM | Thermus thermophilus | HYPOTHETICAL PROTEIN TTHA0223 | 
| 2ys6 | GLY | Geobacillus kaustophilus | PHOSPHORIBOSYLGLYCINAMIDE SYNTHETASE | 
| 2yvl | SAM | Aquifex aeolicus | HYPOTHETICAL PROTEIN | 
| 2yy8 | SAM | Pyrococcus horikoshii | UPF0106 PROTEIN PH0461 | 
| 2yzq | SAM | Pyrococcus horikoshii | PUTATIVE UNCHARACTERIZED PROTEIN PH1780 | 
| 2z0a | GLY | Influenza A virus | NONSTRUCTURAL PROTEIN 1 | 
| 2z0y | SAM | Thermus thermophilus | PUTATIVE UNCHARACTERIZED PROTEIN TTHA0657 | 
| 2z2p | DOL | Staphylococcus aureus | VIRGINIAMYCIN B LYASE | 
| 2z54 | AB1 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 2z71 | PNV | Lysinibacillus sphaericus | PENICILLIN ACYLASE | 
| 2z77 | NCA | Mycobacterium tuberculosis | PUTATIVE STEROID ISOMERASE | 
| 2z97 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2z9w | PXL | Mesorhizobium loti | ASPARTATE AMINOTRANSFERASE | 
| 2z9x | PXL | Mesorhizobium loti | ASPARTATE AMINOTRANSFERASE | 
| 2zaw | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2zax | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 2zb7 | NCA | Homo sapiens | PROSTAGLANDIN REDUCTASE 2 | 
| 2zb8 | IMN | Homo sapiens | PROSTAGLANDIN REDUCTASE 2 | 
| 2zbp | SAM | Thermus thermophilus | RIBOSOMAL PROTEIN L11 METHYLTRANSFERASE | 
| 2zbu | ADN | Thermotoga maritima | UNCHARACTERIZED CONSERVED PROTEIN | 
| 2zbv | ADN | Thermotoga maritima | UNCHARACTERIZED CONSERVED PROTEIN | 
| 2zbz | VDX | Streptomyces griseolus | CYTOCHROME P450-SU1 | 
| 2zd1 | T27 | Human immunodeficiency virus 1 | P51 RT;REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 2ze2 | T27 | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 2zgw | ADN | Pyrococcus horikoshii | BIOTIN--[ACETYL-COA-CARBOXYLASE] LIGASE | 
| 2zi9 | CL9 | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 2zia | CL9 | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 2zif | SAM | Thermus thermophilus | PUTATIVE MODIFICATION METHYLASE | 
| 2zj0 | 2FA | Mycobacterium tuberculosis | ADENOSYLHOMOCYSTEINASE | 
| 2zlc | VDX | Rattus norvegicus | VITAMIN D3 RECEPTOR | 
| 2zm7 | ACA | Flavobacterium sp. | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 2zm8 | ACA | Flavobacterium sp. | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 2zm9 | ACA | Flavobacterium sp. | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 2zma | ACA | Flavobacterium sp. | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 2zmb | PXB | Bos taurus | LACTOTRANSFERRIN | 
| 2zq0 | ACR | Bacteroides thetaiotaomicron | ALPHA-GLUCOSIDASE (ALPHA-GLUCOSIDASE SUSB) | 
| 2zq9 | CLS | Escherichia coli | BETA-LACTAMASE TOHO-1 | 
| 2zs9 | PAU | Mycobacterium tuberculosis | PANTOTHENATE KINASE | 
| 2zse | PAU | Mycobacterium tuberculosis | PANTOTHENATE KINASE | 
| 2zsf | ACT | Mycobacterium tuberculosis | PANTOTHENATE KINASE | 
| 2zt7 | GLY | Homo sapiens | GLYCYL-TRNA SYNTHETASE | 
| 2zth | SAM | Rattus norvegicus | CATECHOL O-METHYLTRANSFERASE | 
| 2zuh | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 2zui | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 2zuj | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 2zul | SAM | Thermus thermophilus | PROBABLE RIBOSOMAL RNA SMALL SUBUNITMETHYLTRANSFERASE | 
| 2zva | 1N1 | Mus musculus | TYROSINE-PROTEIN KINASE LYN | 
| 2zvj | SAM | Rattus norvegicus | CATECHOL O-METHYLTRANSFERASE | 
| 2zw9 | SAM | Saccharomyces cerevisiae | LEUCINE CARBOXYL METHYLTRANSFERASE 2 | 
| 2zwe | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 2zwf | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 2zwg | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 2zwt | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 2zwu | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 2zxw | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 6A2;CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 2zxw | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2zxw | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2zxw | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 2zxw | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 2zza | FOL | Moritella profunda | DIHYDROFOLATE REDUCTASE | 
| 2zzm | SAM | Methanocaldococcus jannaschii | UNCHARACTERIZED PROTEIN MJ0883 | 
| 2zzn | SAM | Methanocaldococcus jannaschii | UNCHARACTERIZED PROTEIN MJ0883 | 
| 316d | DVA | Streptomyces antibioticus | 8-FLUORO-ACTINOMYCIN D | 
| 3a25 | SAM | Pyrococcus horikoshii | UNCHARACTERIZED PROTEIN PH0793 | 
| 3a27 | SAM | Methanocaldococcus jannaschii | UNCHARACTERIZED PROTEIN MJ1557 | 
| 3a2q | ACA | Arthrobacter sp. KI72 | 6-AMINOHEXANOATE-CYCLIC-DIMER HYDROLASE | 
| 3a35 | RBF | Photobacterium kishitanii | LUMAZINE PROTEIN | 
| 3a3b | RBF | Photobacterium kishitanii | LUMAZINE PROTEIN | 
| 3a3y | OBN | Squalus acanthias | NA, K-ATPASE ALPHA SUBUNIT | 
| 3a50 | VD3 | Pseudonocardia autotrophica | VITAMIN D HYDROXYLASE | 
| 3a51 | VDY | Pseudonocardia autotrophica | VITAMIN D HYDROXYLASE | 
| 3a65 | ACA | Flavobacterium sp. K172 | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 3a66 | ACA | Flavobacterium sp. K172 | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 3a6j | CRN | Pseudomonas putida | CREATININE AMIDOHYDROLASE | 
| 3a7e | SAM | Homo sapiens | CATECHOL O-METHYLTRANSFERASE | 
| 3a8i | C2F | Escherichia coli | AMINOMETHYLTRANSFERASE | 
| 3a9e | REA | Homo sapiens | RETINOIC ACID RECEPTOR ALPHA | 
| 3abk | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3abk | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3abk | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2 | 
| 3abk | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3abk | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3abk | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3abl | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3abl | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3abl | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2 | 
| 3abl | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3abl | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3abm | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3abm | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3abm | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2 | 
| 3abm | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3abm | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3ads | IMN | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 3adx | IMN | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 3af0 | PAU | Mycobacterium tuberculosis | PANTOTHENATE KINASE | 
| 3af3 | PAU | Mycobacterium tuberculosis | PANTOTHENATE KINASE | 
| 3ag1 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1 | 
| 3ag1 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3ag1 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3ag1 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2 | 
| 3ag1 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3ag1 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3ag2 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1 | 
| 3ag2 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3ag2 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3ag2 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2 | 
| 3ag2 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3ag2 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3ag2 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3ag3 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3ag3 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3ag3 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2 | 
| 3ag3 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3ag3 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3ag4 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1 | 
| 3ag4 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3ag4 | CHD | Bos taurus | CYTOCHROME C OXIDASE POLYPEPTIDE 7A1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3ag4 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2 | 
| 3ag4 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3ag4 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3ai8 | HNQ | Homo sapiens | CATHEPSIN B | 
| 3ai9 | SAM | Methanocaldococcus jannaschii | UPF0217 PROTEIN MJ1640 | 
| 3aia | SAM | Methanocaldococcus jannaschii | UPF0217 PROTEIN MJ1640 | 
| 3aic | ACR | Streptococcus mutans | GLUCOSYLTRANSFERASE-SI | 
| 3amu | AG2 | Archaeoglobus fulgidus | PUTATIVE UNCHARACTERIZED PROTEIN | 
| 3aob | RFP | Escherichia coli | ACRIFLAVINE RESISTANCE PROTEIN B | 
| 3aoc | ERY | Escherichia coli | ACRIFLAVINE RESISTANCE PROTEIN B | 
| 3aod | MIY | Escherichia coli | ACRIFLAVINE RESISTANCE PROTEIN B | 
| 3aod | RFP | Escherichia coli | ACRIFLAVINE RESISTANCE PROTEIN B | 
| 3aox | EMH | Homo sapiens | ALK TYROSINE KINASE RECEPTOR | 
| 3apt | ACT | Thermus thermophilus | METHYLENETETRAHYDROFOLATE REDUCTASE | 
| 3apv | TP0 | Homo sapiens | ALPHA-1-ACID GLYCOPROTEIN 2 | 
| 3apw | DP0 | Homo sapiens | ALPHA-1-ACID GLYCOPROTEIN 2 | 
| 3apx | Z80 | Homo sapiens | ALPHA-1-ACID GLYCOPROTEIN 2 | 
| 3aqi | CHD | Homo sapiens | FERROCHELATASE | 
| 3arq | DM5 | Vibrio harveyi | CHITINASE A | 
| 3arr | PNX | Vibrio harveyi | CHITINASE A | 
| 3aru | PNX | Vibrio harveyi | CHITINASE A | 
| 3asn | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2 | 
| 3asn | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3asn | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1 | 
| 3asn | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1 | 
| 3asn | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3aso | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2 | 
| 3aso | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3aso | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1 | 
| 3aso | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1 | 
| 3aso | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3att | ACT | Mycobacterium tuberculosis | PUTATIVE UNCHARACTERIZED PROTEIN | 
| 3au7 | AG2 | Archaeoglobus fulgidus | PUTATIVE UNCHARACTERIZED PROTEIN | 
| 3av6 | SAM | Mus musculus | DNA (CYTOSINE-5)-METHYLTRANSFERASE 1 | 
| 3avo | PAU | Mycobacterium tuberculosis | PANTOTHENATE KINASE | 
| 3avp | MV2 | Mycobacterium tuberculosis | PANTOTHENATE KINASE | 
| 3ax7 | SAL | Bos taurus | XANTHINE DEHYDROGENASE/OXIDASE | 
| 3ax9 | SAL | Bos taurus | XANTHINE DEHYDROGENASE/OXIDASE | 
| 3axt | SAM | Aquifex aeolicus | PROBABLE N(2),N(2)-DIMETHYLGUANOSINE TRNAMETHYLTRANSFERASE TRM1 | 
| 3axz | ADN | Haemophilus influenzae | TRNA (GUANINE-N(1)-)-METHYLTRANSFERASE | 
| 3ay0 | ADN | Methanocaldococcus jannaschii | UNCHARACTERIZED PROTEIN MJ0883 | 
| 3b0w | DGX | Homo sapiens | NUCLEAR RECEPTOR ROR-GAMMA | 
| 3b2r | VDN | Homo sapiens | CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE | 
| 3b3m | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 3b3n | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 3b3o | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 3b3p | H4B | Rattus norvegicus | NITRIC-OXIDE SYNTHASE | 
| 3b6h | MXD | Homo sapiens | PROSTACYCLIN SYNTHASE | 
| 3b6r | CRN | Homo sapiens | CREATINE KINASE B-TYPE | 
| 3b7e | ZMR | Influenza A virus | NEURAMINIDASE | 
| 3b7p | SPM | Plasmodium falciparum | SPERMIDINE SYNTHASE | 
| 3b9l | AZZ | Homo sapiens | SERUM ALBUMIN | 
| 3b9m | AZZ | Homo sapiens | SERUM ALBUMIN | 
| 3b9m | SAL | Homo sapiens | SERUM ALBUMIN | 
| 3ba0 | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 3bbt | FMM | Homo sapiens | RECEPTOR TYROSINE-PROTEIN KINASE ERBB-4 | 
| 3bc9 | ACR | Halothermothrix orenii | ALPHA AMYLASE, CATALYTIC REGION | 
| 3bcr | AZZ | Oryctolagus cuniculus | GLYCOGEN PHOSPHORYLASE, MUSCLE FORM | 
| 3bex | PAU | Thermotoga maritima | TYPE III PANTOTHENATE KINASE | 
| 3bf1 | PAU | Thermotoga maritima | TYPE III PANTOTHENATE KINASE | 
| 3bf6 | SVR | Homo sapiens | THROMBIN, HEAVY CHAIN | 
| 3bgd | PM6 | Mus musculus | THIOPURINE S-METHYLTRANSFERASE | 
| 3bgr | T27 | Human immunodeficiency virus 1 | P51 RT;REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 3bj8 | SPM | Mus musculus | DIAMINE ACETYLTRANSFERASE 1 | 
| 3bjm | BJM | Homo sapiens | DIPEPTIDYL PEPTIDASE 4 | 
| 3bjw | SVR | Echis carinatus | PHOSPHOLIPASE A2 | 
| 3bl1 | BL1 | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3bmc | FOL | Trypanosoma brucei | PTERIDINE REDUCTASE | 
| 3bog | DHI | Hypogastrura harveyi | 6.5 KDA GLYCINE-RICH ANTIFREEZE PROTEIN | 
| 3bog | DVA | Hypogastrura harveyi | 6.5 KDA GLYCINE-RICH ANTIFREEZE PROTEIN | 
| 3boy | HIS | Bacillus subtilis | HUT OPERON POSITIVE REGULATORY PROTEIN | 
| 3bpx | SAL | Methanothermobacter thermautotrophicus | TRANSCRIPTIONAL REGULATOR | 
| 3brf | SOR | Caenorhabditis elegans | LIN-12 AND GLP-1 PHENOTYPE PROTEIN 1, ISOFORMA | 
| 3bsz | RTL | Homo sapiens | PLASMA RETINOL-BINDING PROTEIN | 
| 3bu1 | HSM | Argas monolakensis | LIPOCALIN | 
| 3buf | AEG | Homo sapiens | BETA-SECRETASE 1 | 
| 3bur | TES | Homo sapiens | 3-OXO-5-BETA-STEROID 4-DEHYDROGENASE | 
| 3bvb | 017 | Human immunodeficiency virus 1 | PROTEASE (RETROPEPSIN) | 
| 3bvd | CU | Thermus thermophilus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3bwc | SAM | Trypanosoma cruzi | SPERMIDINE SYNTHASE | 
| 3bwm | SAM | Homo sapiens | CATECHOL O-METHYLTRANSFERASE | 
| 3bwy | SAM | Homo sapiens | COMT PROTEIN | 
| 3bxo | SAM | Streptomyces venezuelae | N,N-DIMETHYLTRANSFERASE | 
| 3c0z | SHH | Homo sapiens | HISTONE DEACETYLASE 7A | 
| 3c6g | VD3 | Homo sapiens | CYTOCHROME P450 2R1 | 
| 3c6m | SPM | Homo sapiens | SPERMINE SYNTHASE | 
| 3c7q | XIN | Homo sapiens | VASCULAR ENDOTHELIAL GROWTH FACTOR RECEPTOR 2 | 
| 3c9j | 308 | Influenza A virus | PROTON CHANNEL PROTEIN M2, TRANSMEMBRANESEGMENT | 
| 3caj | EZL | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3cas | ASD | Homo sapiens | 3-OXO-5-BETA-STEROID 4-DEHYDROGENASE | 
| 3cb8 | SAM | ;Escherichia coli | PYRUVATE FORMATE-LYASE 1-ACTIVATING ENZYME;PEPTIDE SUBSTRATE VSGYAV | 
| 3ccf | BEZ | Trichormus variabilis | CYCLOPROPANE-FATTY-ACYL-PHOSPHOLIPID SYNTHASE | 
| 3cd2 | MTX | Pneumocystis carinii | DIHYDROFOLATE REDUCTASE | 
| 3ce6 | ADN | Mycobacterium tuberculosis | ADENOSYLHOMOCYSTEINASE | 
| 3cfl | 5CH | Bos taurus | LACTOTRANSFERRIN | 
| 3cfq | DIF | Homo sapiens | TRANSTHYRETIN | 
| 3cjt | SAM | Thermus thermophilus | RIBOSOMAL PROTEIN L11 METHYLTRANSFERASE | 
| 3ckk | SAM | Homo sapiens | TRNA (GUANINE-N(7)-)-METHYLTRANSFERASE | 
| 3ckz | ZMR | Influenza A virus | NEURAMINIDASE | 
| 3cl9 | MTX | Trypanosoma cruzi | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE (DHFR-TS) | 
| 3cla | CLM | Escherichia coli | TYPE III CHLORAMPHENICOL ACETYLTRANSFERASE | 
| 3clb | TMQ | Trypanosoma cruzi | DHFR-TS | 
| 3cld | GW6 | Homo sapiens | GLUCOCORTICOID RECEPTOR | 
| 3co4 | GCS | Bacteroides thetaiotaomicron | CHITINASE | 
| 3cot | STR | Homo sapiens | 3-OXO-5-BETA-STEROID 4-DEHYDROGENASE | 
| 3cpp | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 3cr4 | PNT | Bos taurus | PROTEIN S100-B | 
| 3cr5 | PNT | Bos taurus | PROTEIN S100-B | 
| 3cs8 | BRL | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 3cs9 | NIL | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE ABL1 | 
| 3csj | CBL | Homo sapiens | GLUTATHIONE S-TRANSFERASE P | 
| 3cv9 | VDX | Streptomyces griseolus | CYTOCHROME P450-SU1 | 
| 3cwk | REA | Homo sapiens | CELLULAR RETINOIC ACID-BINDING PROTEIN 2 | 
| 3cyw | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3cyx | ROC | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3czh | D2V | Homo sapiens | CYTOCHROME P450 2R1 | 
| 3czv | AZM | Homo sapiens | CARBONIC ANHYDRASE 13 | 
| 3d1x | ROC | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3d1y | ROC | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3d1z | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3d20 | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3d2t | 1FL | Homo sapiens | TRANSTHYRETIN | 
| 3d41 | FCN | Streptomyces wedmorensis | FOMA PROTEIN | 
| 3d4s | TIM | Escherichia virus T4;Homo sapiens | BETA-2 ADRENERGIC RECEPTOR/T4-LYSOZYMECHIMERA | 
| 3d90 | NOG | Homo sapiens | PROGESTERONE RECEPTOR | 
| 3d91 | REM | Homo sapiens | RENIN | 
| 3d9l | ACT | Homo sapiens | CTD-PEPTIDE;RNA-BINDING PROTEIN 16 | 
| 3dat | MTX | Bacillus anthracis | DIHYDROFOLATE REDUCTASE | 
| 3dau | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 3daz | MZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3dc3 | AZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3dcj | THH | Mycobacterium tuberculosis | PROBABLE 5'-PHOSPHORIBOSYLGLYCINAMIDEFORMYLTRANSFERASE PURN | 
| 3dcm | SAM | Thermotoga maritima | UNCHARACTERIZED PROTEIN TM_1570 | 
| 3dco | TA1 | Bos taurus | BOVINE BETA TUBULIN | 
| 3dcs | MZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3dcw | EZL | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3dd0 | EZL | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3dd1 | CFF | Homo sapiens | GLYCOGEN PHOSPHORYLASE, LIVER FORM | 
| 3dds | CFF | Homo sapiens | GLYCOGEN PHOSPHORYLASE, LIVER FORM | 
| 3ddw | CFF | Homo sapiens | GLYCOGEN PHOSPHORYLASE, LIVER FORM | 
| 3ddy | RBF | Photobacterium leiognathi | LUMAZINE PROTEIN | 
| 3deu | SAL | Salmonella enterica | TRANSCRIPTIONAL REGULATOR SLYA | 
| 3dfr | MTX | Lactobacillus casei | DIHYDROFOLATE REDUCTASE | 
| 3dgq | EAA | Homo sapiens | GLUTATHIONE S-TRANSFERASE P | 
| 3dh0 | SAM | Aquifex aeolicus | SAM DEPENDENT METHYLTRANSFERASE | 
| 3dl9 | V2H | Homo sapiens | CYTOCHROME P450 2R1 | 
| 3dlc | SAM | Methanococcus maripaludis | PUTATIVE S-ADENOSYL-L-METHIONINE-DEPENDENTMETHYLTRANSFERASE | 
| 3dmf | SAM | Thermus thermophilus | PROBABLE RIBOSOMAL RNA SMALL SUBUNITMETHYLTRANSFERASE | 
| 3dmh | SAM | Thermus thermophilus | PROBABLE RIBOSOMAL RNA SMALL SUBUNITMETHYLTRANSFERASE | 
| 3dmt | CCS | Trypanosoma cruzi | GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE,GLYCOSOMAL | 
| 3dou | SAM | Thermoplasma volcanium | RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASEJ | 
| 3dqr | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3dqs | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3dqt | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3drc | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 3dtu | CU | Rhodobacter sphaeroides | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3dtu | CU | Rhodobacter sphaeroides | CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 3dtu | DXC | Rhodobacter sphaeroides | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2 | 
| 3dwj | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3dxy | SAM | Escherichia coli | TRNA (GUANINE-N(7)-)-METHYLTRANSFERASE | 
| 3dye | LNR | Aedes aegypti | D7 PROTEIN | 
| 3dzg | NCA | Homo sapiens | ADP-RIBOSYL CYCLASE 1 | 
| 3dzu | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 3dzy | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 3dzy | BRL | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 3e00 | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 3e22 | LOC | Bos taurus | TUBULIN ALPHA-1C CHAIN;TUBULIN BETA-2B CHAIN | 
| 3e23 | SAM | Rhodopseudomonas palustris | UNCHARACTERIZED PROTEIN RPA2492 | 
| 3e4e | 4PZ | Homo sapiens | CYTOCHROME P450 2E1 | 
| 3e65 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e67 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e68 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e6l | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e6n | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e6o | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e6t | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e7g | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e7i | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e7m | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3e9r | ACT | Schistosoma mansoni | PURINE-NUCLEOSIDE PHOSPHORYLASE | 
| 3e9x | NIM | Bos taurus | LACTOTRANSFERRIN' | 
| 3eai | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3ebd | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3ebf | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3ebz | 017 | Human immunodeficiency virus 2 | PROTEASE | 
| 3edl | TA1 | Bos taurus | BETA TUBULIN | 
| 3eeo | SAM | Haemophilus parahaemolyticus | MODIFICATION METHYLASE HHAI | 
| 3eey | SAM | Hungateiclostridium thermocellum | PUTATIVE RRNA METHYLASE | 
| 3eig | MTX | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 3ej8 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3ekp | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3ekq | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3ekt | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 3ekv | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3ekw | DR7 | Human immunodeficiency virus 1 | PROTEASE | 
| 3ekx | 1UN | Human immunodeficiency virus 1 | PROTEASE | 
| 3eky | DR7 | Human immunodeficiency virus 1 | PROTEASE | 
| 3el0 | 1UN | Human immunodeficiency virus 1 | PROTEASE | 
| 3el1 | DR7 | Human immunodeficiency virus 1 | PROTEASE | 
| 3el4 | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3el5 | 1UN | Human immunodeficiency virus 1 | PROTEASE | 
| 3el9 | DR7 | Human immunodeficiency virus 1 | PROTEASE | 
| 3elu | SAM | Wesselsbron virus | METHYLTRANSFERASE | 
| 3elw | SAM | Wesselsbron virus | METHYLTRANSFERASE | 
| 3elz | CHD | Danio rerio | ILEAL BILE ACID-BINDING PROTEIN | 
| 3em0 | CHD | Danio rerio | ILEAL BILE ACID-BINDING PROTEIN | 
| 3em3 | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3em4 | DR7 | Human immunodeficiency virus 1 | PROTEASE | 
| 3em6 | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 3emb | SAM | Wesselsbron virus | METHYLTRANSFERASE | 
| 3eqm | ASD | Homo sapiens | CYTOCHROME P450 19A1 | 
| 3erd | DES | Homo sapiens | ESTROGEN RECEPTOR ALPHA | 
| 3ete | H3P | Bos taurus | GLUTAMATE DEHYDROGENASE | 
| 3eyg | MI1 | Homo sapiens | TYROSINE-PROTEIN KINASE | 
| 3ez3 | ZOL | Plasmodium vivax | FARNESYL PYROPHOSPHATE SYNTHASE, PUTATIVE | 
| 3f33 | PFL | Equus caballus | FERRITIN LIGHT CHAIN | 
| 3f4x | KLT | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3f78 | ICF | Homo sapiens | INTEGRIN ALPHA-L | 
| 3f8f | DM1 | Lactococcus lactis | TRANSCRIPTIONAL REGULATOR, PADR-LIKE FAMILY | 
| 3f8w | ADN | Schistosoma mansoni | PURINE-NUCLEOSIDE PHOSPHORYLASE | 
| 3fal | REA | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 3fbw | BEZ | Rhodococcus rhodochrous | HALOALKANE DEHALOGENASE | 
| 3fbx | ACT | Mus musculus | PUTATIVE PHOSPHOLIPASE B-LIKE 2 | 
| 3fc5 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3fc6 | REA | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 3fgr | ACT | Mus musculus | PUTATIVE PHOSPHOLIPASE B-LIKE 2 28 KDA FORM | 
| 3fgr | ACT | Mus musculus | PUTATIVE PHOSPHOLIPASE B-LIKE 2 40 KDA FORM | 
| 3fhj | TRP | Geobacillus stearothermophilus | TRYPTOPHANYL-TRNA SYNTHETASE | 
| 3fhx | PXL | Homo sapiens | PYRIDOXAL KINASE | 
| 3fi0 | TRP | Geobacillus stearothermophilus | TRYPTOPHANYL-TRNA SYNTHETASE | 
| 3fl9 | TOP | Bacillus anthracis | DIHYDROFOLATE REDUCTASE (DHFR) | 
| 3fo7 | IMN | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 3fof | MFX | ;Streptococcus pneumoniae | DNA TOPOISOMERASE 4 SUBUNIT A | 
| 3fof | MFX | ;Streptococcus pneumoniae | DNA TOPOISOMERASE 4 SUBUNIT A;DNA TOPOISOMERASE 4 SUBUNIT B | 
| 3fpj | SAM | Methanothermobacter thermautotrophicus | PUTATIVE UNCHARACTERIZED PROTEIN | 
| 3frb | TOP | Staphylococcus aureus | DIHYDROFOLATE REDUCTASE | 
| 3fre | TOP | Staphylococcus aureus | DIHYDROFOLATE REDUCTASE | 
| 3frq | ERY | Escherichia coli | REPRESSOR PROTEIN MPHR(A) | 
| 3fsu | C2F | Escherichia coli | 5,10-METHYLENETETRAHYDROFOLATE REDUCTASE | 
| 3fup | MI1 | Homo sapiens | TYROSINE-PROTEIN KINASE JAK2 | 
| 3fuu | ADN | Thermus thermophilus | DIMETHYLADENOSINE TRANSFERASE | 
| 3fw1 | STI | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 3fw3 | ETS | Homo sapiens | CARBONIC ANHYDRASE 4 | 
| 3fwf | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3fwg | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3fwi | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3fwj | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3fxr | ASC | Comamonas testosteroni | LYSR TYPE REGULATOR OF TSAMBCD | 
| 3fzg | SAM | Escherichia coli | 16S RRNA METHYLASE | 
| 3g0b | T22 | Homo sapiens | DIPEPTIDYL PEPTIDASE 4 | 
| 3g0e | B49 | Homo sapiens | MAST/STEM CELL GROWTH FACTOR RECEPTOR | 
| 3g0f | B49 | Homo sapiens | MAST/STEM CELL GROWTH FACTOR RECEPTOR | 
| 3g1r | FIT | Homo sapiens | 3-OXO-5-BETA-STEROID 4-DEHYDROGENASE | 
| 3g1u | ADN | Leishmania major | ADENOSYLHOMOCYSTEINASE | 
| 3g2o | SAM | Amycolatopsis orientalis | PCZA361.24 | 
| 3g4l | ROF | Homo sapiens | CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE4D | 
| 3g59 | ACT | [Candida] glabrata | FMN ADENYLYLTRANSFERASE | 
| 3g5d | 1N1 | Gallus gallus | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC | 
| 3g6m | CFF | Clonostachys rosea | CHITINASE | 
| 3g7x | HSM | Rhipicephalus appendiculatus | FEMALE-SPECIFIC HISTAMINE-BINDING PROTEIN 2 | 
| 3g88 | SAM | Thermus thermophilus | RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASEG | 
| 3g89 | SAM | Thermus thermophilus | RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASEG | 
| 3g8b | SAM | Thermus thermophilus | RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASEG | 
| 3g8i | RO7 | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORALPHA | 
| 3g9e | RO7 | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 3gal | 1GN | Homo sapiens | GALECTIN-7 | 
| 3gan | SVR | Arabidopsis thaliana | UNCHARACTERIZED PROTEIN AT3G22680 | 
| 3gcl | AIN | Bos taurus | LACTOPEROXIDASE | 
| 3gcs | BAX | Homo sapiens | MITOGEN-ACTIVATED PROTEIN KINASE 14 | 
| 3gcz | SAM | Yokose virus | POLYPROTEIN | 
| 3gf2 | SAL | Sulfurisphaera tokodaii | 146AA LONG HYPOTHETICAL TRANSCRIPTIONALREGULATOR | 
| 3ggu | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 3gkz | B40 | Mus musculus | ANTI-METHAMPHETAMINE SINGLE CHAIN FV | 
| 3glq | RAB | Burkholderia pseudomallei | ADENOSYLHOMOCYSTEINASE | 
| 3gm0 | B41 | Mus musculus | ANTI-METHAMPHETAMINE SINGLE CHAIN FV | 
| 3gn0 | DMO | Homo sapiens | ARGINASE-1 | 
| 3gn8 | DEX | Homo sapiens | GLUCOCORTICOID RECEPTOR 2 | 
| 3gp0 | NIL | Homo sapiens | MITOGEN-ACTIVATED PROTEIN KINASE 11 | 
| 3grv | ADN | Methanocaldococcus jannaschii | DIMETHYLADENOSINE TRANSFERASE | 
| 3gry | SAM | Methanocaldococcus jannaschii | DIMETHYLADENOSINE TRANSFERASE | 
| 3gss | EAA | Homo sapiens | GLUTATHIONE S-TRANSFERASE P1-1 | 
| 3gv1 | BEZ | Neisseria gonorrhoeae | DISULFIDE INTERCHANGE PROTEIN | 
| 3gvu | STI | Homo sapiens | TYROSINE-PROTEIN KINASE ABL2 | 
| 3gws | T3 | Homo sapiens | THYROID HORMONE RECEPTOR BETA | 
| 3gwu | SRE | Aquifex aeolicus | TRANSPORTER | 
| 3gwv | RFX | Aquifex aeolicus | TRANSPORTER | 
| 3gww | SFX | Aquifex aeolicus | TRANSPORTER | 
| 3gwx | EPA | Homo sapiens | PROTEIN (PEROXISOME PROLIFERATOR ACTIVATEDRECEPTOR (PPAR-DELTA)) | 
| 3gy3 | PNT | Bos taurus | CATIONIC TRYPSIN | 
| 3gyq | SAM | Streptomyces cyaneus | RRNA (ADENOSINE-2'-O-)-METHYLTRANSFERASE | 
| 3h0a | 9RA | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 3h1x | IMN | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 3h52 | 486 | Homo sapiens | GLUCOCORTICOID RECEPTOR | 
| 3h5g | LEI | - | COIL SER L16D-PEN | 
| 3h6t | CYZ | Rattus norvegicus | GLUTAMATE RECEPTOR 2 | 
| 3h9u | ADN | Trypanosoma brucei | ADENOSYLHOMOCYSTEINASE | 
| 3ham | LLL | Enterococcus faecium | AMINOGLYCOSIDE PHOSPHOTRANSFERASE | 
| 3hav | SRY | Enterococcus faecium | AMINOGLYCOSIDE PHOSPHOTRANSFERASE | 
| 3hbb | TMQ | Trypanosoma cruzi | DIHYDROFOLATE REDUCTASE-THYMIDYLATE SYNTHASE | 
| 3hcd | LNR | Homo sapiens | PHENYLETHANOLAMINE N-METHYLTRANSFERASE | 
| 3hcn | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 3hco | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 3hcp | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 3hcr | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 3hec | STI | Homo sapiens | MITOGEN-ACTIVATED PROTEIN KINASE 14 | 
| 3heg | BAX | Homo sapiens | MITOGEN-ACTIVATED PROTEIN KINASE 14 | 
| 3hgg | CHD | Campylobacter jejuni | CMER | 
| 3hgi | BEZ | Rhodococcus opacus | CATECHOL 1,2-DIOXYGENASE | 
| 3hgx | SAL | Pseudomonas aeruginosa | SALICYLATE BIOSYNTHESIS PROTEIN PCHB | 
| 3hii | CU | Homo sapiens | AMILORIDE-SENSITIVE AMINE OXIDASE | 
| 3hii | PNT | Homo sapiens | AMILORIDE-SENSITIVE AMINE OXIDASE | 
| 3hj3 | MTX | Cryptosporidium hominis | CHAIN A, CRYSTAL STRUCTURE OF DHFR | 
| 3hjo | EAA | Homo sapiens | GLUTATHIONE S-TRANSFERASE P | 
| 3hku | TOR | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3hlw | CE3 | Escherichia coli | CTX-M-9 EXTENDED-SPECTRUM BETA-LACTAMASE | 
| 3hm1 | J3Z | Homo sapiens | ESTROGEN RECEPTOR | 
| 3hp1 | LLT | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 3hrd | NIO | Eubacterium barkeri | NICOTINATE DEHYDROGENASE LARGE MOLYBDOPTERINSUBUNIT;NICOTINATE DEHYDROGENASE MEDIUM MOLYBDOPTERINSUBUNIT | 
| 3hs4 | AZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3hs6 | EPA | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 3hsn | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3hso | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3hsp | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3hth | PRL | Streptomyces lividans | EBRA REPRESSOR | 
| 3huo | PNN | Escherichia coli | CTX-M-9 EXTENDED-SPECTRUM BETA-LACTAMASE | 
| 3hvt | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE (SUBUNIT P66) | 
| 3hy7 | 097 | Homo sapiens | A DISINTEGRIN AND METALLOPROTEINASE WITHTHROMBOSPONDIN MOTIFS 5 | 
| 3hzn | ACT | Salmonella enterica | OXYGEN-INSENSITIVE NAD(P)H NITROREDUCTASE | 
| 3i45 | NIO | Rhodospirillum rubrum | TWIN-ARGININE TRANSLOCATION PATHWAY SIGNALPROTEIN | 
| 3i5u | SAM | Streptomyces carzinostaticus | O-METHYLTRANSFERASE | 
| 3i9j | NCA | Aplysia californica | ADP-RIBOSYL CYCLASE | 
| 3ia4 | MTX | Moritella profunda | DIHYDROFOLATE REDUCTASE | 
| 3iai | AZM | Homo sapiens | CARBONIC ANHYDRASE 9 | 
| 3iak | EV1 | Homo sapiens | CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE4D | 
| 3iaz | AIN | Bos taurus | LACTOTRANSFERRIN | 
| 3ib0 | DIF | Bos taurus | LACTOTRANSFERRIN | 
| 3ib1 | IMN | Bos taurus | LACTOTRANSFERRIN | 
| 3ib2 | IBP | Bos taurus | LACTOTRANSFERRIN | 
| 3iba | ZOL | Trypanosoma cruzi | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 3id5 | SAM | Saccharolobus solfataricus | FIBRILLARIN-LIKE RRNA/TRNA2'-O-METHYLTRANSFERASE | 
| 3id6 | SAM | Saccharolobus solfataricus | FIBRILLARIN-LIKE RRNA/TRNA2'-O-METHYLTRANSFERASE | 
| 3ieo | AMJ | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3iht | SAM | Ruegeria pomeroyi | S-ADENOSYL-L-METHIONINE METHYL TRANSFERASE | 
| 3ihz | FK5 | Plasmodium vivax | 70 KDA PEPTIDYLPROLYL ISOMERASE, PUTATIVE | 
| 3iiz | SAM | Thermotoga maritima | BIOTIN SYNTHETASE, PUTATIVE | 
| 3ijd | C2F | Hungateiclostridium thermocellum | UNCHARACTERIZED PROTEIN | 
| 3ijx | HCZ | Rattus norvegicus | GLUTAMATE RECEPTOR 2 | 
| 3ik3 | 0LI | Mus musculus | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE ABL1 | 
| 3ik6 | HCZ | Rattus norvegicus | GLUTAMATE RECEPTOR 2 | 
| 3ilt | TRU | Rattus norvegicus | GLUTAMATE RECEPTOR 2 | 
| 3ilu | HFZ | Rattus norvegicus | GLUTAMATE RECEPTOR 2 | 
| 3iqd | AG2 | Pecten maximus | OCTOPINE DEHYDROGENASE | 
| 3it4 | ACT | Mycobacterium tuberculosis | ARGININE BIOSYNTHESIS BIFUNCTIONAL PROTEINARGJ ALPHA CHAIN;ARGININE BIOSYNTHESIS BIFUNCTIONAL PROTEINARGJ BETA CHAIN | 
| 3it4 | BEZ | Mycobacterium tuberculosis | ARGININE BIOSYNTHESIS BIFUNCTIONAL PROTEINARGJ ALPHA CHAIN | 
| 3ita | AIC | Escherichia coli | D-ALANYL-D-ALANINE CARBOXYPEPTIDASE DACC | 
| 3iv6 | SAM | Rhodobacter sphaeroides | PUTATIVE ZN-DEPENDENT ALCOHOL DEHYDROGENASE | 
| 3iw1 | ASD | Mycobacterium tuberculosis | CYTOCHROME P450 CYP125 | 
| 3iwm | 010 | Severe acute respiratory syndrome-relatedcoronavirus;synthetic construct | 3C-LIKE PROTEINASE;N-[(5-METHYLISOXAZOL-3-YL)CARBONYL]ALANYL-L-VALYL-N~1~-((1R,2Z)-4-(BENZYLOXY)-4-OXO-1-{[(3R)-2-OXOPYRROLIDIN-3-YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE | 
| 3ix9 | MTX | Streptococcus pneumoniae | DIHYDROFOLATE REDUCTASE | 
| 3ixl | PAC | Bordetella bronchiseptica | ARYLMALONATE DECARBOXYLASE | 
| 3iz0 | TA1 | Bos taurus | BETA TUBULIN, CHAIN B FROM PDB 1JFF | 
| 3j6g | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 3j6p | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 3j7z | ERY | Escherichia coli;Staphylococcus aureus | 23S RRNA;50S RIBOSOMAL PROTEIN L22;ERMCL NASCENT CHAIN | 
| 3jaf | IVM | Danio rerio | GLYCINE RECEPTOR SUBUNIT ALPHAZ1 | 
| 3jay | SAM | Cypovirus 1 | STRUCTURAL PROTEIN VP3 | 
| 3jb1 | SAM | Cypovirus 1 | STRUCTURAL PROTEIN VP3 | 
| 3jb2 | SAM | Cypovirus 1 | STRUCTURAL PROTEIN VP3 | 
| 3jb3 | SAM | Cypovirus 1 | STRUCTURAL PROTEIN VP3 | 
| 3jq7 | DX2 | Trypanosoma brucei | PTERIDINE REDUCTASE 1 | 
| 3jqa | DX4 | Trypanosoma brucei | PTERIDINE REDUCTASE 1 | 
| 3jqz | LQZ | Homo sapiens | SERUM ALBUMIN | 
| 3jt3 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jt4 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jt5 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jt6 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jt7 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jt8 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jt9 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jta | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jus | ECL | Homo sapiens | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 3jus | ECN | Homo sapiens | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 3jvy | 017 | Human immunodeficiency virus 1 | GAG-POL POLYPROTEIN | 
| 3jw2 | 017 | Human immunodeficiency virus 1 | GAG-POL POLYPROTEIN | 
| 3jw3 | TOP | Bacillus anthracis | DIHYDROFOLATE REDUCTASE | 
| 3jw5 | TOP | Bacillus anthracis | DIHYDROFOLATE REDUCTASE | 
| 3jwq | VIA | Homo sapiens | CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASECATALYTIC DOMAIN, CONE CGMP-SPECIFIC3',5'-CYCLIC PHOSPHODIESTERASE SUBUNIT ALPHACHIMERA | 
| 3jws | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jwt | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jwu | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jwv | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jww | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3jwx | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3jwy | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3jwz | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3jx0 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jx1 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jx2 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jx3 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jx4 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jx5 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jx6 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3jyr | ACR | Salmonella enterica | MALTOSE-BINDING PERIPLASMIC PROTEIN | 
| 3jz0 | CLY | Enterococcus faecium | LINCOSAMIDE NUCLEOTIDYLTRANSFERASE | 
| 3jzj | ACR | Streptomyces glaucescens | ACARBOSE/MALTOSE BINDING PROTEIN GACH | 
| 3k13 | THH | Bacteroides thetaiotaomicron | 5-METHYLTETRAHYDROFOLATE-HOMOCYSTEINEMETHYLTRANSFERASE | 
| 3k2h | LYA | Babesia bovis | DIHYDROFOLATE REDUCTASE/THYMIDYLATE SYNTHASE | 
| 3k37 | BCZ | Influenza B virus | NEURAMINIDASE | 
| 3k39 | BCZ | Influenza B virus | NEURAMINIDASE | 
| 3k4v | ROC | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3k54 | 1N1 | Homo sapiens | TYROSINE-PROTEIN KINASE BTK | 
| 3k5v | STI | Mus musculus | TYROSINE-PROTEIN KINASE ABL1 | 
| 3k8m | ACR | Bacteroides thetaiotaomicron | ALPHA-AMYLASE, SUSG | 
| 3k9f | LFX | ;Streptococcus pneumoniae | DNA TOPOISOMERASE 4 SUBUNIT A;DNA TOPOISOMERASE 4 SUBUNIT B | 
| 3k9w | ACT | Burkholderia pseudomallei | PHOSPHOPANTETHEINE ADENYLYLTRANSFERASE | 
| 3kcx | CQL | Homo sapiens | HYPOXIA-INDUCIBLE FACTOR 1-ALPHA INHIBITOR | 
| 3kd5 | PPF | Escherichia virus RB69 | DNA POLYMERASE | 
| 3kdm | TES | Homo sapiens | IMMUNOGLOBULIN HEAVY CHAIN;IMMUNOGLOBULIN LIGHT CHAIN | 
| 3kec | HAE | Homo sapiens | COLLAGENASE 3 | 
| 3kee | 30B | Hepacivirus C | GENOME POLYPROTEIN | 
| 3khm | TPF | Trypanosoma cruzi | STEROL 14 ALPHA-DEMETHYLASE | 
| 3kiv | ACA | Homo sapiens | APOLIPOPROTEIN | 
| 3kk6 | CEL | Ovis aries | PROSTAGLANDIN G/H SYNTHASE 1 | 
| 3kkz | SAM | Bacteroides fragilis | UNCHARACTERIZED PROTEIN Q5LES9 | 
| 3kl3 | DHI | Bacillus subtilis | GLUCURONOXYLANASE XYNC | 
| 3km6 | EAA | Homo sapiens | GLUTATHIONE S-TRANSFERASE P | 
| 3kmo | EAA | Homo sapiens | GLUTATHIONE S-TRANSFERASE P | 
| 3ko0 | TFP | Homo sapiens | PROTEIN S100-A4 | 
| 3kp2 | PNN | Staphylococcus epidermidis | TRANSCRIPTIONAL REGULATOR TCAR | 
| 3kp3 | AIC | Staphylococcus epidermidis | TRANSCRIPTIONAL REGULATOR TCAR | 
| 3kp4 | MII | Staphylococcus epidermidis | TRANSCRIPTIONAL REGULATOR TCAR | 
| 3kp5 | KAN | Staphylococcus epidermidis | TRANSCRIPTIONAL REGULATOR TCAR | 
| 3kp6 | SAL | Staphylococcus epidermidis | TRANSCRIPTIONAL REGULATOR TCAR | 
| 3kpb | SAM | Methanocaldococcus jannaschii | UNCHARACTERIZED PROTEIN MJ0100 | 
| 3kpc | SAM | Methanocaldococcus jannaschii | UNCHARACTERIZED PROTEIN MJ0100 | 
| 3kpd | SAM | Methanocaldococcus jannaschii | UNCHARACTERIZED PROTEIN MJ0100 | 
| 3ku1 | SAM | Streptococcus pneumoniae | SAM-DEPENDENT METHYLTRANSFERASE | 
| 3ku9 | SPM | Zea mays | POLYAMINE OXIDASE | 
| 3kvr | URF | Bos taurus | URIDINE PHOSPHORYLASE | 
| 3kvv | URF | Escherichia coli | URIDINE PHOSPHORYLASE | 
| 3kw2 | ADN | Porphyromonas gingivalis | PROBABLE R-RNA METHYLTRANSFERASE | 
| 3kw4 | TIC | Oryctolagus cuniculus | CYTOCHROME P450 2B4 | 
| 3kwa | SPM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3kz7 | RAP | Mus musculus | FK506-BINDING PROTEIN 3 | 
| 3l2u | ELV | Simian foamy virus | INTEGRASE | 
| 3l2v | RLT | Simian foamy virus | INTEGRASE | 
| 3l2w | ELV | Simian foamy virus | INTEGRASE | 
| 3l35 | DHI | - | GP41 N-PEPTIDE;HIV ENTRY INHIBITOR PIE12 | 
| 3l4d | TPF | Leishmania infantum | STEROL 14-ALPHA DEMETHYLASE | 
| 3l4w | MIG | Homo sapiens | MALTASE-GLUCOAMYLASE, INTESTINAL | 
| 3l63 | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3l7k | EDT | Staphylococcus epidermidis | TEICHOIC ACID BIOSYNTHESIS PROTEIN F | 
| 3l7m | EDT | Staphylococcus epidermidis | TEICHOIC ACID BIOSYNTHESIS PROTEIN F | 
| 3l8l | DVA | Brevibacillus brevis | GRAMICIDIN D | 
| 3lb3 | 4CH | Amphitrite ornata | DEHALOPEROXIDASE A | 
| 3lbd | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR GAMMA | 
| 3lcv | SAM | Micromonospora zionensis | SISOMICIN-GENTAMICIN RESISTANCE METHYLASE SGM | 
| 3ld6 | KKK | Homo sapiens | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 3ldw | ZOL | Plasmodium vivax | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 3lfa | 1N1 | Homo sapiens | MITOGEN-ACTIVATED PROTEIN KINASE 14 | 
| 3lik | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 3lil | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 3ljg | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 3lk0 | Z80 | Bos taurus | PROTEIN S100-B | 
| 3lka | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 3lm8 | VIB | Bacillus subtilis | THIAMINE PYROPHOSPHOKINASE | 
| 3lmy | CP6 | Homo sapiens | BETA-HEXOSAMINIDASE SUBUNIT BETA | 
| 3ln1 | CEL | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 3loq | ACT | Archaeoglobus fulgidus | UNIVERSAL STRESS PROTEIN | 
| 3lp0 | NVP | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 3lp1 | NVP | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 3lp9 | SPM | Lathyrus sativus | LS-24 | 
| 3lps | NOV | Xanthomonas oryzae | TOPOISOMERASE IV SUBUNIT B | 
| 3ls4 | TCI | Mus musculus | HEAVY CHAIN OF ANTIBODY FAB FRAGMENT;LIGHT CHAIN OF ANTIBODY FAB FRAGMENT | 
| 3lsf | PZI | Rattus norvegicus | GLUTAMATE RECEPTOR 2 | 
| 3lsk | ACT | Trametes ochracea | PYRANOSE 2-OXIDASE | 
| 3lsl | PZI | Rattus norvegicus | GLUTAMATE RECEPTOR 2 | 
| 3ltw | HLZ | Mycobacterium marinum | ARYLAMINE N-ACETYLTRANSFERASE NAT | 
| 3lus | X8Z | Vibrio cholerae | ORGANIC HYDROPEROXIDE RESISTANCE PROTEIN | 
| 3lw5 | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 3lw5 | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 3lxe | TOR | Homo sapiens | CARBONIC ANHYDRASE 1 | 
| 3lxi | CAM | Novosphingobium aromaticivorans | CYTOCHROME P450 | 
| 3lxk | MI1 | Homo sapiens | TYROSINE-PROTEIN KINASE JAK3 | 
| 3lxn | MI1 | Homo sapiens | NON-RECEPTOR TYROSINE-PROTEIN KINASE TYK2 | 
| 3lzs | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3lzu | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3lzv | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3m0w | P77 | Homo sapiens | PROTEIN S100-A4 | 
| 3m6v | SAM | Thermus thermophilus | RRNA METHYLASE | 
| 3m6w | SAM | Thermus thermophilus | RRNA METHYLASE | 
| 3m7r | VDX | Homo sapiens | VITAMIN D3 RECEPTOR | 
| 3m8p | 65B | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H;P51 RT | 
| 3mb5 | SAM | Pyrococcus abyssi | SAM-DEPENDENT METHYLTRANSFERASE | 
| 3mbg | ACT | Homo sapiens | FAD-LINKED SULFHYDRYL OXIDASE ALR | 
| 3mbh | PXL | Bacteroides thetaiotaomicron | PUTATIVE PHOSPHOMETHYLPYRIMIDINE KINASE | 
| 3mdr | GJZ | Homo sapiens | CHOLESTEROL 24-HYDROXYLASE | 
| 3mdt | VOR | Homo sapiens | CHOLESTEROL 24-HYDROXYLASE | 
| 3mdv | CL6 | Homo sapiens | CHOLESTEROL 24-HYDROXYLASE | 
| 3mdz | EZL | Homo sapiens | CARBONIC ANHYDRASE 7 | 
| 3me6 | CGE | Oryctolagus cuniculus | CYTOCHROME P450 2B4 | 
| 3mec | 65B | Human immunodeficiency virus 1 | P51 REVERSE TRANSCRIPTASE;P66 REVERSE TRANSCRIPTASE | 
| 3med | 65B | Human immunodeficiency virus 1 | P51 REVERSE TRANSCRIPTASE;P66 REVERSE TRANSCRIPTASE | 
| 3mee | T27 | Human immunodeficiency virus 1 | P51 REVERSE TRANSCRIPTASE;P66 REVERSE TRANSCRIPTASE | 
| 3meg | T27 | Human immunodeficiency virus 1 | P51 REVERSE TRANSCRIPTASE;P66 REVERSE TRANSCRIPTASE | 
| 3mek | SAM | Homo sapiens | SET AND MYND DOMAIN-CONTAINING PROTEIN 3 | 
| 3mes | DME | Cryptosporidium parvum | CHOLINE KINASE | 
| 3mg0 | BO2 | Saccharomyces cerevisiae | PROTEASOME COMPONENT C5;PROTEASOME COMPONENT PRE2 | 
| 3mg0 | BO2 | Saccharomyces cerevisiae | PROTEASOME COMPONENT PRE3;PROTEASOME COMPONENT PUP1 | 
| 3mg0 | BO2 | Saccharomyces cerevisiae | PROTEASOME COMPONENT PUP1;PROTEASOME COMPONENT PUP3 | 
| 3mih | CU | Rattus norvegicus | PEPTIDYL-GLYCINE ALPHA-AMIDATINGMONOOXYGENASE | 
| 3miy | B49 | Homo sapiens | TYROSINE-PROTEIN KINASE ITK/TSK | 
| 3mjr | AC2 | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 3ml5 | AZM | Homo sapiens | CARBONIC ANHYDRASE 7 | 
| 3mne | DEX | Mus musculus | GLUCOCORTICOID RECEPTOR | 
| 3mno | DEX | Mus musculus | GLUCOCORTICOID RECEPTOR | 
| 3mnp | DEX | Mus musculus | GLUCOCORTICOID RECEPTOR | 
| 3ms9 | STI | Mus musculus | TYROSINE-PROTEIN KINASE ABL1 | 
| 3mss | STI | Mus musculus | TYROSINE-PROTEIN KINASE ABL1 | 
| 3mte | SAM | Escherichia coli | 16S RRNA METHYLASE | 
| 3mws | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3myu | VIB | Mycoplasma genitalium | HIGH AFFINITY TRANSPORT SYSTEM PROTEIN P37 | 
| 3mze | CFX | Escherichia coli | D-ALANYL-D-ALANINE CARBOXYPEPTIDASE DACA | 
| 3n0h | TOP | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 3n23 | OBN | Sus scrofa | SODIUM/POTASSIUM-TRANSPORTING ATPASE SUBUNITALPHA-1 | 
| 3n2o | AG2 | Vibrio vulnificus | BIOSYNTHETIC ARGININE DECARBOXYLASE | 
| 3n2r | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n3i | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3n45 | ZOL | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 3n46 | ZOL | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 3n58 | ADN | Brucella abortus | ADENOSYLHOMOCYSTEINASE | 
| 3n5p | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n5q | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n5r | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n5s | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n5t | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n5v | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n5y | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n5z | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n61 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n62 | ACT | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n62 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n62 | MTL | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n65 | ACT | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n65 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n65 | MTL | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n66 | ACT | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n66 | MTL | Rattus norvegicus | NITRIC OXIDE SYNTHASE | 
| 3n67 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n68 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n69 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n6a | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n6b | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n6c | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n6d | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n6e | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n6f | H4B | Bos taurus | 'NITRIC OXIDE SYNTHASE | 
| 3n6g | H4B | Bos taurus | NITRIC OXIDE SYNTHASE | 
| 3n8w | FLP | Ovis aries | PROSTAGLANDIN G/H SYNTHASE 1 | 
| 3n8x | NIM | Ovis aries | PROSTAGLANDIN G/H SYNTHASE 1 | 
| 3n8y | DIF | Ovis aries | PROSTAGLANDIN G/H SYNTHASE 1 | 
| 3n8y | SAL | Ovis aries | PROSTAGLANDIN G/H SYNTHASE 1 | 
| 3n8z | FLP | Ovis aries | PROSTAGLANDIN G/H SYNTHASE 1 | 
| 3n9j | EAA | Homo sapiens | GLUTATHIONE S-TRANSFERASE P | 
| 3nai | URF | Norwalk virus | RNA DEPENDENT RNA POLYMERASE | 
| 3nbq | URF | Homo sapiens | URIDINE PHOSPHORYLASE 1 | 
| 3nbr | ASD | Comamonas testosteroni | STEROID DELTA-ISOMERASE | 
| 3ncq | ACT | Archaeoglobus fulgidus | NITROGEN REGULATORY PROTEIN P-II (GLNB-2) | 
| 3ndi | SAM | Micromonospora chalcea | METHYLTRANSFERASE | 
| 3ndt | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3ndu | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3ndv | AIC | Sphingosinicella xenopeptidilytica | BETA-PEPTIDYL AMINOPEPTIDASE | 
| 3ndw | RIT | Human immunodeficiency virus 1 | PROTEASE | 
| 3ndx | RIT | Human immunodeficiency virus 1 | PROTEASE | 
| 3nhx | ASD | Comamonas testosteroni | STEROID DELTA-ISOMERASE | 
| 3njz | SAL | Pseudaminobacter salicylatoxidans | GENTISATE 1,2-DIOXYGENASE | 
| 3nk2 | LDP | Paenarthrobacter nicotinovorans | 6-HYDROXY-L-NICOTINE OXIDASE | 
| 3nk7 | SAM | Streptomyces actuosus | 23S RRNA METHYLTRANSFERASE | 
| 3nld | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3nle | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3nlf | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3nlg | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3nlh | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3nli | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3nlj | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlk | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlm | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nln | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlo | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlp | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlq | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlr | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlt | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3nlu | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3nlv | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlw | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlx | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nly | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nlz | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nm0 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nmu | SAM | Pyrococcus furiosus | FIBRILLARIN-LIKE RRNA/TRNA2'-O-METHYLTRANSFERASE;NOP5/NOP56 RELATED PROTEIN | 
| 3nn0 | NCA | Paenarthrobacter nicotinovorans | 6-HYDROXY-L-NICOTINE OXIDASE | 
| 3nne | ACT | Arthrobacter globiformis | CHOLINE OXIDASE | 
| 3nny | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nnz | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3nod | H4B | Mus musculus | NITRIC OXIDE SYNTHASE | 
| 3nos | H4B | Homo sapiens | ENDOTHELIAL NITRIC-OXIDE SYNTHASE | 
| 3nqs | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3nrr | D16 | Babesia bovis | DIHYDROFOLATE REDUCTASE-THYMIDYLATE SYNTHASE | 
| 3ns1 | PM6 | Bos taurus | XANTHINE DEHYDROGENASE/OXIDASE | 
| 3nt1 | NPS | Mus musculus | PROSTAGLANDIN-ENDOPEROXIDE SYNTHASE 2 | 
| 3nu3 | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3nu4 | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3nu5 | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3nu6 | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3nu9 | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3nuj | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3nuo | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3nuv | ASD | Comamonas testosteroni | STEROID DELTA-ISOMERASE | 
| 3nv6 | CAM | Novosphingobium aromaticivorans | CYTOCHROME P450 | 
| 3nvc | SAL | Pseudaminobacter salicylatoxidans | GENTISATE 1,2-DIOXYGENASE | 
| 3nvk | SAM | Pyrococcus furiosus | FIBRILLARIN-LIKE RRNA/TRNA2'-O-METHYLTRANSFERASE;NOP5/NOP56 RELATED PROTEIN | 
| 3nw2 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 3nxu | RIT | Homo sapiens | CYTOCHROME P450 3A4 | 
| 3ny4 | SMX | Mycobacterium tuberculosis | BETA-LACTAMASE | 
| 3nya | JTZ | Escherichia virus T4;Homo sapiens | BETA-2 ADRENERGIC RECEPTOR, LYSOZYME | 
| 3o01 | DXC | Salmonella enterica | CELL INVASION PROTEIN SIPD | 
| 3o02 | JN3 | Salmonella enterica | CELL INVASION PROTEIN SIPD | 
| 3o0m | ACT | Mycolicibacterium smegmatis | HIT FAMILY PROTEIN | 
| 3o0q | ADN | Thermotoga maritima | RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE | 
| 3o14 | NIO | Marinobacter hydrocarbonoclasticus | ANTI-ECFSIGMA FACTOR, CHRR | 
| 3o1c | ADN | Oryctolagus cuniculus | HISTIDINE TRIAD NUCLEOTIDE-BINDING PROTEIN 1 | 
| 3o1x | ADN | Oryctolagus cuniculus | HISTIDINE TRIAD NUCLEOTIDE-BINDING PROTEIN 1 | 
| 3o5r | FK5 | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP5 | 
| 3o7w | SAM | Homo sapiens | LEUCINE CARBOXYL METHYLTRANSFERASE 1 | 
| 3o94 | NCA | Streptococcus pneumoniae | NICOTINAMIDASE | 
| 3o9m | BEZ | Homo sapiens | CHOLINESTERASE | 
| 3oap | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 3oct | 1N1 | Homo sapiens | TYROSINE-PROTEIN KINASE BTK | 
| 3oez | STI | Gallus gallus | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC | 
| 3of4 | ACT | Idiomarina loihiensis | NITROREDUCTASE | 
| 3og7 | 032 | Homo sapiens | AKAP9-BRAF FUSION PROTEIN | 
| 3ogp | 017 | Feline immunodeficiency virus | FIV PROTEASE | 
| 3ogq | AB1 | Feline immunodeficiency virus | FIV PROTEASE | 
| 3ogw | IMN | Bos taurus | LACTOPEROXIDASE | 
| 3oht | 1N1 | Salmo salar | P38A | 
| 3oi8 | ADN | Neisseria meningitidis | UNCHARACTERIZED PROTEIN | 
| 3okx | SAM | Rhodopseudomonas palustris | YAEB-LIKE PROTEIN RPA0152 | 
| 3oll | EST | Homo sapiens | ESTROGEN RECEPTOR BETA | 
| 3ols | EST | Homo sapiens | ESTROGEN RECEPTOR BETA | 
| 3ond | ADN | Lupinus luteus | ADENOSYLHOMOCYSTEINASE | 
| 3onn | ACT | Saccharomyces cerevisiae | PROTEIN SSM1 | 
| 3ooi | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE, H3LYSINE-36 AND H4 LYSINE-20 SPECIFIC | 
| 3ope | SAM | Homo sapiens | PROBABLE HISTONE-LYSINE N-METHYLTRANSFERASEASH1L | 
| 3osh | OIN | Naja sagittifera | PHOSPHOLIPASE A2 ISOFORM 3 | 
| 3ou6 | SAM | Streptomyces luridus | SAM-DEPENDENT METHYLTRANSFERASE | 
| 3ou7 | SAM | Streptomyces luridus | SAM-DEPENDENT METHYLTRANSFERASE | 
| 3owx | XRA | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 3oxc | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3oxv | 478 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3oxw | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3oxx | DR7 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3oxz | 0LI | Mus musculus | TYROSINE-PROTEIN KINASE ABL1 | 
| 3oy4 | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3oya | RLT | Simian foamy virus | PFV INTEGRASE | 
| 3ozk | T44 | Homo sapiens | TRANSTHYRETIN | 
| 3ozu | X89 | Cupriavidus necator | FLAVOHEMOPROTEIN | 
| 3ozv | ECN | Cupriavidus necator | FLAVOHEMOGLOBIN | 
| 3ozw | KKK | Cupriavidus necator | FLAVOHEMOGLOBIN | 
| 3p0k | ACT | Autographa californica multiplenucleopolyhedrovirus | SULFHYDRYL OXIDASE | 
| 3p2k | SAM | Escherichia coli | 16S RRNA METHYLASE | 
| 3p4w | DSF | Gloeobacter violaceus | GLR4197 PROTEIN | 
| 3p50 | PFL | Gloeobacter violaceus | GLR4197 PROTEIN | 
| 3p5n | RBF | Staphylococcus aureus | RIBOFLAVIN UPTAKE PROTEIN | 
| 3p6g | IZP | Homo sapiens | FATTY ACID-BINDING PROTEIN, ADIPOCYTE | 
| 3p6h | IBP | Homo sapiens | FATTY ACID-BINDING PROTEIN, ADIPOCYTE | 
| 3p73 | ACT | Gallus gallus | MHC RFP-Y CLASS I ALPHA CHAIN | 
| 3p97 | SAM | Dengue virus | NON-STRUCTURAL PROTEIN 5 | 
| 3pcq | PQN | Thermosynechococcus elongatus | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 3pcq | PQN | Thermosynechococcus elongatus | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 3peo | CU9 | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 3pfg | SAM | Streptomyces fradiae | N-METHYLTRANSFERASE | 
| 3pgh | FLP | Mus musculus | CYCLOOXYGENASE-2 | 
| 3pgl | RZX | Homo sapiens | CARBOXY-TERMINAL DOMAIN RNA POLYMERASE IIPOLYPEPTIDE A SMALL PHOSPHATASE 1 | 
| 3pgy | GLY | Staphylococcus aureus | SERINE HYDROXYMETHYLTRANSFERASE | 
| 3pha | ACR | Blautia obeum | ALPHA-GLUCOSIDASE | 
| 3phn | ACT | Rana pipiens | PROTEIN P-30 | 
| 3pmz | TUB | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 3pne | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3pnf | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3png | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3pnh | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3po7 | ZON | Homo sapiens | AMINE OXIDASE [FLAVIN-CONTAINING] B | 
| 3poc | ACR | Blautia obeum | ALPHA-GLUCOSIDASE | 
| 3pp1 | ACT | Homo sapiens | DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEINKINASE KINASE 1 | 
| 3pp7 | SVR | Leishmania mexicana | PYRUVATE KINASE | 
| 3ppo | DCK | Bacillus subtilis | GLYCINE BETAINE/CARNITINE/CHOLINE-BINDINGPROTEIN | 
| 3pqz | CCS | ;Homo sapiens | GROWTH FACTOR RECEPTOR-BOUND PROTEIN 7;CYCLIC PEPTIDE | 
| 3prs | RIT | Cryphonectria parasitica | ENDOTHIAPEPSIN | 
| 3ps9 | SAM | Escherichia coli | TRNA 5-METHYLAMINOMETHYL-2-THIOURIDINEBIOSYNTHESIS BIFUNCTIONAL PROTEIN MNMC | 
| 3pwm | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 3pwr | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3pww | ROC | Cryphonectria parasitica | ENDOTHIAPEPSIN | 
| 3py4 | TYL | Bos taurus | LACTOPEROXIDASE | 
| 3pyy | STI | Homo sapiens | V-ABL ABELSON MURINE LEUKEMIA VIRAL ONCOGENEHOMOLOG 1 ISOFORM B VARIANT | 
| 3q07 | WPP | Escherichia coli | BETA-LACTAMASE | 
| 3q1e | T44 | Danio rerio | 5-HYDROXYISOURATE HYDROLASE | 
| 3q5p | TAC | Bacillus subtilis | MULTIDRUG-EFFLUX TRANSPORTER 1 REGULATOR | 
| 3q5r | KAN | Bacillus subtilis | MULTIDRUG-EFFLUX TRANSPORTER 1 REGULATOR | 
| 3q5s | ACH | Bacillus subtilis | MULTIDRUG-EFFLUX TRANSPORTER 1 REGULATOR | 
| 3q70 | RIT | Candida albicans | CANDIDAPEPSIN-2 | 
| 3q87 | SAM | Encephalitozoon cuniculi | N6 ADENINE SPECIFIC DNA METHYLASE | 
| 3q95 | ESL | Homo sapiens | ESTROGEN RECEPTOR | 
| 3q99 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3q9a | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3qel | QEL | Rattus norvegicus;Xenopus laevis | GLUTAMATE [NMDA] RECEPTOR SUBUNIT EPSILON-2;NMDA GLUTAMATE RECEPTOR SUBUNIT | 
| 3qeo | LLT | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 3qf1 | PZE | Capra hircus | LACTOPEROXIDASE | 
| 3qfx | CP6 | Trypanosoma brucei | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 3qg2 | CP6 | Plasmodium falciparum | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 3qgt | CP6 | Plasmodium falciparum | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 3qgz | ADN | Oryctolagus cuniculus | HISTIDINE TRIAD NUCLEOTIDE-BINDING PROTEIN 1 | 
| 3qip | NVP | Human immunodeficiency virus 1 | REVERSE HIV-1 REVERSE TRANSCRIPTASE P66 | 
| 3qj7 | SPM | Mycobacterium tuberculosis | THYMIDYLATE SYNTHASE | 
| 3ql0 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 3ql3 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 3ql6 | NIM | Bos taurus | LACTOPEROXIDASE | 
| 3qlg | 1N1 | Gallus gallus | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC | 
| 3qlh | T27 | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 3qow | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE | 
| 3qpk | CU | Melanocarpus albomyces | LACCASE-1 | 
| 3qps | CHD | Campylobacter jejuni | CMER | 
| 3qt0 | 486 | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 3quo | FCN | Streptomyces wedmorensis | FOMA PROTEIN | 
| 3qwp | SAM | Homo sapiens | SET AND MYND DOMAIN-CONTAINING PROTEIN 3 | 
| 3qwu | ADN | Aquifex aeolicus | DNA LIGASE | 
| 3qx3 | EVP | ;Homo sapiens | DNA TOPOISOMERASE 2-BETA | 
| 3qx3 | EVP | Homo sapiens | DNA TOPOISOMERASE 2-BETA | 
| 3qxt | MTX | Lama glama | ANTI-METHOTREXATE CDR1-3 GRAFT VHH | 
| 3qxv | MTX | Lama glama | ANTI-METHOTREXATE CDR1-4 GRAFT VHH | 
| 3qxy | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SETD6;TRANSCRIPTION FACTOR P65 | 
| 3r0l | ACT | Crotalus durissus | PHOSPHOLIPASE A2 CB | 
| 3r24 | SAM | Severe acute respiratory syndrome-relatedcoronavirus | 2'-O-METHYL TRANSFERASE | 
| 3r2c | ACT | Aquifex aeolicus | N UTILIZATION SUBSTANCE PROTEIN B | 
| 3r2j | NIO | Leishmania infantum | ALPHA/BETA-HYDROLASE-LIKE PROTEIN | 
| 3r43 | ID8 | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 3r4x | PZA | Bos taurus | LACTOPEROXIDASE | 
| 3r55 | PZA | Capra hircus | LACTOPEROXIDASE | 
| 3r58 | NPS | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 3r6i | JMS | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 3r6w | NFZ | Pseudomonas aeruginosa | FMN-DEPENDENT NADH-AZOREDUCTASE 1 | 
| 3r75 | BEZ | Burkholderia lata | ANTHRANILATE/PARA-AMINOBENZOATE SYNTHASESCOMPONENT I | 
| 3r76 | BEZ | Burkholderia lata | ANTHRANILATE/PARA-AMINOBENZOATE SYNTHASESCOMPONENT I | 
| 3r7m | SUZ | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 3r8g | IZP | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 3r94 | FLR | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 3r9c | ECL | Mycolicibacterium smegmatis | CYTOCHROME P450 164A2 | 
| 3r9s | BEZ | Mycobacterium avium | CARNITINYL-COA DEHYDRATASE | 
| 3r9t | BEZ | Mycobacterium avium | ECHA1_1 | 
| 3r9v | DXC | Shigella flexneri | INVASIN IPAD | 
| 3r9w | ACT | Aquifex aeolicus | GTPASE ERA | 
| 3r9x | ACT | Aquifex aeolicus | RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASEA | 
| 3rae | LFX | ;Streptococcus pneumoniae | DNA TOPOISOMERASE 4 SUBUNIT A;DNA TOPOISOMERASE 4 SUBUNIT B | 
| 3rav | RAV | Equus caballus | FERRITIN LIGHT CHAIN | 
| 3rc0 | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SETD6 | 
| 3rd0 | EDP | Equus caballus | FERRITIN LIGHT CHAIN | 
| 3rem | SAL | Pseudomonas aeruginosa | SALICYLATE BIOSYNTHESIS PROTEIN PCHB | 
| 3req | ADN | Propionibacterium freudenreichii | METHYLMALONYL-COA MUTASE | 
| 3ret | SAL | Pseudomonas aeruginosa | SALICYLATE BIOSYNTHESIS PROTEIN PCHB | 
| 3rf4 | FUN | Ancylostoma ceylanicum | MACROPHAGE MIGRATION INHIBITORY FACTOR | 
| 3rfa | SAM | Escherichia coli | RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASEN | 
| 3rfm | CFF | Homo sapiens | ADENOSINE RECEPTOR A2A | 
| 3rgf | BAX | Homo sapiens | CYCLIN-DEPENDENT KINASE 8 | 
| 3rgl | GLY | Campylobacter jejuni | GLYCYL-TRNA SYNTHETASE ALPHA SUBUNIT | 
| 3rhg | BEZ | Proteus mirabilis | PUTATIVE PHOPHOTRIESTERASE | 
| 3rhw | IVM | Caenorhabditis elegans | AVERMECTIN-SENSITIVE GLUTAMATE-GATED CHLORIDECHANNEL GLUCL ALPHA | 
| 3ri5 | IVM | Caenorhabditis elegans | AVERMECTIN-SENSITIVE GLUTAMATE-GATED CHLORIDECHANNEL GLUCL ALPHA | 
| 3ria | IVM | Caenorhabditis elegans | AVERMECTIN-SENSITIVE GLUTAMATE-GATED CHLORIDECHANNEL GLUCL ALPHA | 
| 3rif | IVM | Caenorhabditis elegans | AVERMECTIN-SENSITIVE GLUTAMATE-GATED CHLORIDECHANNEL GLUCL ALPHA | 
| 3rlb | VIB | Lactococcus lactis | THIT | 
| 3rnj | EDT | Homo sapiens | BRAIN-SPECIFIC ANGIOGENESIS INHIBITOR1-ASSOCIATED PROTEIN 2 | 
| 3rod | NCA | Homo sapiens | NICOTINAMIDE N-METHYLTRANSFERASE | 
| 3rop | NCA | Homo sapiens | ADP-RIBOSYL CYCLASE 1 | 
| 3rox | TEP | Mus musculus | APOLIPOPROTEIN A-I-BINDING PROTEIN | 
| 3roz | NCA | Mus musculus | APOLIPOPROTEIN A-I-BINDING PROTEIN | 
| 3rq4 | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SUV420H2 | 
| 3rqj | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3rqk | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3rql | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3rqm | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3rqn | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3rqo | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3rqp | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 3rqw | ACH | Dickeya dadantii | ELIC PENTAMERIC LIGAND GATED ION CHANNEL FROMERWINIA CHRYSANTHEMI | 
| 3rr3 | FLR | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 3ruk | AER | Homo sapiens | STEROID 17-ALPHA-HYDROXYLASE/17,20 LYASE | 
| 3rum | CCS | Escherichia coli | MALTOSE-BINDING PERIPLASMIC PROTEIN | 
| 3run | CCS | Escherichia virus T4 | LYSOZYME | 
| 3rv5 | DXC | Homo sapiens | TROPONIN C, SLOW SKELETAL AND CARDIAC MUSCLES | 
| 3rx3 | SUZ | Homo sapiens | ALDOSE REDUCTASE | 
| 3rxf | 4AP | Bos taurus | CATIONIC TRYPSIN | 
| 3rxh | HSM | Bos taurus | CATIONIC TRYPSIN | 
| 3rze | D7V | Escherichia virus T4;Homo sapiens | HISTAMINE H1 RECEPTOR, LYSOZYME CHIMERA | 
| 3s33 | CU | Thermus thermophilus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3s38 | CU | Thermus thermophilus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3s39 | CU | Thermus thermophilus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3s3a | CU | Thermus thermophilus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3s3b | CU | Thermus thermophilus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3s3c | CU | Thermus thermophilus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3s3d | CU | Thermus thermophilus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3s3g | TLT | Homo sapiens | ALDOSE REDUCTASE | 
| 3s3m | DLU | Simian foamy virus | PFV INTEGRASE | 
| 3s3n | DLU | Simian foamy virus | PFV INTEGRASE | 
| 3s3o | DLU | Simian foamy virus | PFV INTEGRASE | 
| 3s3t | ACT | Lactobacillus plantarum | NUCLEOTIDE-BINDING PROTEIN, UNIVERSAL STRESSPROTEIN USPA FAMILY | 
| 3s3v | TOP | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 3s43 | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 3s45 | 478 | Human immunodeficiency virus 2 | PROTEASE | 
| 3s53 | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 3s54 | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 3s56 | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3s68 | SAM | Rattus norvegicus | CATECHOL O-METHYLTRANSFERASE | 
| 3s68 | TCW | Rattus norvegicus | CATECHOL O-METHYLTRANSFERASE | 
| 3s79 | ASD | Homo sapiens | CYTOCHROME P450 19A1 | 
| 3s7b | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 3s7f | SAM | ;Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2;P53 PEPTIDE | 
| 3s7j | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 3s7s | EXM | Homo sapiens | CYTOCHROME P450 19A1 | 
| 3s8p | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SUV420H1 | 
| 3san | ZMR | Influenza A virus | NEURAMINIDASE | 
| 3sdr | 210 | Abies grandis | ALPHA-BISABOLENE SYNTHASE | 
| 3sdv | 911 | Abies grandis | ALPHA-BISABOLENE SYNTHASE | 
| 3sel | DXC | Geobacter sulfurreducens | CYTOCHROME C7 | 
| 3sfe | TMG | Sus scrofa | SUCCINATE DEHYDROGENASE CYTOCHROME B560SUBUNIT, MITOCHONDRIAL;SUCCINATE DEHYDROGENASE [UBIQUINONE]IRON-SULFUR SUBUNIT, MITOCHONDRIAL | 
| 3sfu | RBV | Norwalk virus | RNA POLYMERASE | 
| 3sg8 | TOY | Enterococcus casseliflavus | APH(2'')-ID | 
| 3sg9 | KAN | Enterococcus casseliflavus | APH(2'')-ID | 
| 3sgl | SAM | Yersinia pestis | TRNA 5-METHYLAMINOMETHYL-2-THIOURIDINEBIOSYNTHESIS BIFUNCTIONAL PROTEIN MNMC | 
| 3sh8 | CED | Bacillus licheniformis | BETA-LACTAMASE | 
| 3si7 | ACT | Mus musculus | CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCEREGULATOR | 
| 3sj0 | DXC | Geobacter sulfurreducens | CYTOCHROME C7 | 
| 3sj1 | DXC | Geobacter sulfurreducens | CYTOCHROME C7 | 
| 3sj4 | DXC | Geobacter sulfurreducens | CYTOCHROME C7 | 
| 3sm2 | 478 | Murine leukemia virus | GAG-PRO-POL POLYPROTEIN | 
| 3smt | ACT | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SETD3 | 
| 3smt | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SETD3 | 
| 3snf | ACT | Rana pipiens | PROTEIN P-30 | 
| 3so9 | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3soa | DB8 | Homo sapiens | CALCIUM/CALMODULIN-DEPENDENT PROTEIN KINASETYPE II SUBUNIT ALPHA WITH A BETA 7 LINKER | 
| 3sp6 | IL2 | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORALPHA | 
| 3sp9 | IL2 | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORDELTA | 
| 3spk | TPV | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3su9 | ACT | Enterobacter cloacae | UDP-N-ACETYLGLUCOSAMINE1-CARBOXYVINYLTRANSFERASE | 
| 3sud | SUE | Hepacivirus C | NS3 PROTEASE, NS4A PROTEIN | 
| 3sue | SUE | Hepacivirus C | NS3 PROTEASE, NS4A PROTEIN | 
| 3suf | SUE | Hepacivirus C | NS3 PROTEASE, NS4A PROTEIN | 
| 3sug | SUE | Hepacivirus C | NS3 PROTEASE, NS4A PROTEIN | 
| 3svp | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3svq | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3sxj | SAM | Bacteroides thetaiotaomicron | PUTATIVE METHYLTRANSFERASE | 
| 3sxr | 1N1 | Homo sapiens | CYTOPLASMIC TYROSINE-PROTEIN KINASE BMX | 
| 3t01 | PPF | Sinorhizobium meliloti | PHOSPHONOACETATE HYDROLASE | 
| 3t3c | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3t3q | 9PL | Homo sapiens | CYTOCHROME P450 2A6 | 
| 3t3r | 9PL | Homo sapiens | CYTOCHROME P450 2A6 | 
| 3t3s | 9PL | Homo sapiens | CYTOCHROME P450 2A13 | 
| 3t3z | 9PL | Homo sapiens | CYTOCHROME P450 2E1 | 
| 3t7s | SAM | Bacteroides vulgatus | PUTATIVE METHYLTRANSFERASE | 
| 3t7v | SAM | Methanosarcina barkeri | METHYLORNITHINE SYNTHASE PYLB | 
| 3t8n | EDT | Pseudomonas putida | STEROID DELTA-ISOMERASE | 
| 3taj | NBO | Bos taurus | LACTOTRANSFERRIN | 
| 3tbg | RTZ | Homo sapiens | CYTOCHROME P450 2D6 | 
| 3teg | DAH | Homo sapiens | PHENYLALANYL-TRNA SYNTHETASE, MITOCHONDRIAL | 
| 3teh | DAH | Thermus thermophilus | PHENYLALANYL-TRNA SYNTHETASE ALPHA CHAIN | 
| 3teh | DAH | Thermus thermophilus | PHENYLALANYL-TRNA SYNTHETASE BETA CHAIN | 
| 3tf1 | ACT | Caldanaerobacter subterraneus | METHYL-ACCEPTING CHEMOTAXIS PROTEIN | 
| 3tg4 | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 3tgv | BEZ | Vibrio cholerae | HEME-BINDING PROTEIN HUTZ | 
| 3tgy | ASC | Bos taurus | LACTOPEROXIDASE | 
| 3thr | C2F | Rattus norvegicus | GLYCINE N-METHYLTRANSFERASE | 
| 3ti1 | B49 | Homo sapiens | CYCLIN-DEPENDENT KINASE 2 | 
| 3ti5 | ZMR | Influenza A virus | NEURAMINIDASE | 
| 3tic | ZMR | Influenza A virus | NEURAMINIDASE | 
| 3tj7 | ACT | Bacillus anthracis | GBAA_1210 PROTEIN | 
| 3tka | SAM | Escherichia coli | RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASEH | 
| 3tkd | CYZ | Rattus norvegicus | GLUTAMATE RECEPTOR 2 | 
| 3tkg | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3tkw | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 3tl9 | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 3tm4 | SAM | Pyrococcus furiosus | TRNA (GUANINE N2-)-METHYLTRANSFERASE TRM14 | 
| 3tmz | 06X | Oryctolagus cuniculus | CYTOCHROME P450 2B4 | 
| 3tne | RIT | Candida parapsilosis | SECRETED ASPARTIC PROTEASE | 
| 3top | ACR | Homo sapiens | MALTASE-GLUCOAMYLASE, INTESTINAL | 
| 3tou | ACT | Ralstonia solanacearum | GLUTATHIONE S-TRANSFERASE PROTEIN | 
| 3tpx | ACT | Homo sapiens | E3 UBIQUITIN-PROTEIN LIGASE MDM2 | 
| 3tq8 | TOP | Coxiella burnetii | DIHYDROFOLATE REDUCTASE | 
| 3tq9 | MTX | Coxiella burnetii | DIHYDROFOLATE REDUCTASE | 
| 3tqb | FOL | Coxiella burnetii | DIHYDROFOLATE REDUCTASE | 
| 3ttp | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 3ttr | LQZ | Bos taurus | LACTOTRANSFERRIN | 
| 3tvx | PNX | Homo sapiens | CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE4A | 
| 3twp | SAL | Mycobacterium tuberculosis | ANTHRANILATE PHOSPHORIBOSYLTRANSFERASE | 
| 3tx2 | BEZ | Mycobacteroides abscessus | PROBABLE 6-PHOSPHOGLUCONOLACTONASE | 
| 3tye | YTZ | Bacillus anthracis | DIHYDROPTEROATE SYNTHASE | 
| 3tyl | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3tym | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3tyn | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3tyo | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3tzf | 08D | Yersinia pestis | 7,8-DIHYDROPTEROATE SYNTHASE | 
| 3tzo | SPM | Streptomyces coelicolor | PUTATIVE CYTOCHROME P450 | 
| 3u01 | ACT | Rana pipiens | PROTEIN P-30 | 
| 3u2c | SUZ | Homo sapiens | ALDOSE REDUCTASE | 
| 3u40 | ADN | Entamoeba histolytica | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 3u52 | CU | Pseudomonas stutzeri | PHENOL HYDROXYLASE COMPONENT PHL;PHENOL HYDROXYLASE COMPONENT PHN | 
| 3u5j | 08H | Homo sapiens | BROMODOMAIN-CONTAINING PROTEIN 4 | 
| 3u5k | 08J | Homo sapiens | BROMODOMAIN-CONTAINING PROTEIN 4 | 
| 3u6t | KAN | Momordica balsamina | RIBOSOME INACTIVATING PROTEIN | 
| 3u7s | 017 | Human immunodeficiency virus 1 | POL POLYPROTEIN | 
| 3u88 | CHD | Homo sapiens | MENIN | 
| 3u8q | NPU | Bos taurus | LACTOTRANSFERRIN | 
| 3u9f | CLM | Escherichia coli | CHLORAMPHENICOL ACETYLTRANSFERASE | 
| 3u9h | NCA | Homo sapiens | TANKYRASE-2 | 
| 3ua1 | 08Y | Homo sapiens | CYTOCHROME P450 3A4 | 
| 3ua5 | 06X | Homo sapiens | CYTOCHROME P450 2B6 | 
| 3uaw | ADN | Bacillus cereus | PURINE NUCLEOSIDE PHOSPHORYLASE DEOD-TYPE | 
| 3uay | ADN | Bacillus cereus | PURINE NUCLEOSIDE PHOSPHORYLASE DEOD-TYPE | 
| 3ub9 | NHY | Helicobacter pylori | CHEMORECEPTOR TLPB | 
| 3ubo | ADN | Sinorhizobium meliloti | ADENOSINE KINASE | 
| 3ucb | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 3ucj | AZM | Coccomyxa sp. PA | CARBONIC ANHYDRASE | 
| 3ue4 | DB8 | Homo sapiens | TYROSINE-PROTEIN KINASE ABL1 | 
| 3uf8 | FK5 | Burkholderia pseudomallei;Saccharomyces cerevisiae | UBIQUITIN-LIKE PROTEIN SMT3, PEPTIDYL-PROLYLCIS-TRANS ISOMERASE | 
| 3ufg | LEU | Campylobacter jejuni | GLYCYL-TRNA SYNTHETASE ALPHA SUBUNIT | 
| 3ufn | ROC | Homo sapiens | HIV-1 PROTEASE | 
| 3ufo | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3ufp | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3ufq | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3ufr | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3ufs | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3uft | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3ufu | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3ufv | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3ufw | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 3ug2 | IRE | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 3ug8 | IMN | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 3ugr | IMN | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 3uiv | 308 | Homo sapiens | SERUM ALBUMIN | 
| 3uj6 | SAM | Plasmodium falciparum | PHOSPHOETHANOLAMINE N-METHYLTRANSFERASE | 
| 3uj7 | SAM | Plasmodium falciparum | PHOSPHOETHANOLAMINE N-METHYLTRANSFERASE | 
| 3um5 | CP6 | Plasmodium falciparum | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 3una | SAL | Bos taurus | XANTHINE DEHYDROGENASE/OXIDASE | 
| 3unc | SAL | Bos taurus | XANTHINE DEHYDROGENASE/OXIDASE | 
| 3uni | SAL | Bos taurus | XANTHINE DEHYDROGENASE/OXIDASE | 
| 3upr | 1KX | ;Homo sapiens | HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, B-57ALPHA CHAIN;PEP-V | 
| 3upw | NCA | Scheffersomyces stipitis | OLD YELLOW ENZYME 2.6 (OYE2.6), NADPHDEHYDROGENASE | 
| 3uq6 | ADN | Schistosoma mansoni | ADENOSINE KINASE, PUTATIVE | 
| 3uqa | FK5 | Burkholderia pseudomallei;Saccharomyces cerevisiae | UBIQUITIN-LIKE PROTEIN SMT3, PEPTIDYL-PROLYLCIS-TRANS ISOMERASE | 
| 3uqb | FK5 | Burkholderia pseudomallei;Saccharomyces cerevisiae | UBIQUITIN-LIKE PROTEIN SMT3, PEPTIDYL-PROLYLCIS-TRANS ISOMERASE | 
| 3ur0 | SVR | Norwalk virus | RNA-DEPENDENT RNA POLYMERASE | 
| 3ut5 | LOC | Ovis aries | TUBULIN ALPHA CHAIN;TUBULIN BETA CHAIN | 
| 3uud | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 3uvv | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 3uvv | T3 | Gallus gallus | THYROID HORMONE RECEPTOR ALPHA | 
| 3uwl | FOZ | Enterococcus faecalis | THYMIDYLATE SYNTHASE | 
| 3uy4 | PAU | Campylobacter jejuni | PANTOTHENATE SYNTHETASE | 
| 3uzz | ASD | Homo sapiens | 3-OXO-5-BETA-STEROID 4-DEHYDROGENASE | 
| 3uzz | TES | Homo sapiens | 3-OXO-5-BETA-STEROID 4-DEHYDROGENASE | 
| 3v1n | BEZ | Paraburkholderia xenovorans | 2-HYDROXY-6-OXO-6-PHENYLHEXA-2,4-DIENOATEHYDROLASE | 
| 3v2j | AZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3v2m | AZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 3v35 | NTI | Homo sapiens | ALDOSE REDUCTASE | 
| 3v3n | MIY | Bacteroides thetaiotaomicron | TETX2 PROTEIN | 
| 3v3o | T1C | Bacteroides thetaiotaomicron | TETX2 PROTEIN | 
| 3v4t | ACT | Enterobacter cloacae | UDP-N-ACETYLGLUCOSAMINE1-CARBOXYVINYLTRANSFERASE | 
| 3v5v | ACT | Enterobacter cloacae | UDP-N-ACETYLGLUCOSAMINE1-CARBOXYVINYLTRANSFERASE | 
| 3v5w | 8PR | Homo sapiens | G-PROTEIN COUPLED RECEPTOR KINASE 2 | 
| 3v7p | BEZ | Nitratiruptor sp. SB155-2 | AMIDOHYDROLASE FAMILY PROTEIN | 
| 3v81 | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE P66 SUBUNIT | 
| 3v8v | SAM | Escherichia coli | RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASEL | 
| 3vaq | ADN | Schistosoma mansoni | PUTATIVE ADENOSINE KINASE | 
| 3vas | ADN | Schistosoma mansoni | PUTATIVE ADENOSINE KINASE | 
| 3vaw | FK5 | Burkholderia pseudomallei;Saccharomyces cerevisiae | UBIQUITIN-LIKE PROTEIN SMT3,PEPTIDYL-PROLYLCIS-TRANS ISOMERASE | 
| 3vet | TOY | Streptoalloteichus tenebrarius | O-CARBAMOYLTRANSFERASE TOBZ | 
| 3vfj | ACT | Escherichia coli | MALTOSE-BINDING PERIPLASMIC PROTEIN,C-TERMINAL FUSED BY CYS-LYS-D-ALA-D-ALA | 
| 3vhu | SNL | Homo sapiens | MINERALOCORTICOID RECEPTOR | 
| 3vkg | SPM | Dictyostelium discoideum | DYNEIN HEAVY CHAIN, CYTOPLASMIC | 
| 3vkx | T3 | Homo sapiens | PROLIFERATING CELL NUCLEAR ANTIGEN | 
| 3vln | ACT | Homo sapiens | GLUTATHIONE S-TRANSFERASE OMEGA-1 | 
| 3vln | ASC | Homo sapiens | GLUTATHIONE S-TRANSFERASE OMEGA-1 | 
| 3vm4 | IZP | Sphingomonas paucimobilis | FATTY ACID ALPHA-HYDROXYLASE | 
| 3vn2 | TLS | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 3vns | DVA | Streptomyces sp. | NRPS ADENYLATION PROTEIN CYTC1 | 
| 3vqr | ACT | Aeropyrum pernix | PUTATIVE OXIDOREDUCTASE | 
| 3vri | 1KX | Homo sapiens | 10-MER PEPTIDE;HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, B-57ALPHA CHAIN | 
| 3vrj | 1KX | Homo sapiens | 10-MER PEPTIDE;HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, B-57ALPHA CHAIN | 
| 3vrm | VD3 | Pseudonocardia autotrophica | VITAMIN D(3) 25-HYDROXYLASE | 
| 3vt3 | VDX | Rattus norvegicus | VITAMIN D3 RECEPTOR | 
| 3vt7 | VDX | Rattus norvegicus | VITAMIN D3 RECEPTOR | 
| 3vw1 | CVI | Salmonella enterica | PUTATIVE REGULATORY PROTEIN | 
| 3vw7 | VPX | Escherichia virus T4;Homo sapiens | PROTEINASE-ACTIVATED RECEPTOR 1, LYSOZYME | 
| 3vwp | ACA | Flavobacterium sp. K172;Flavobacterium sp. KI723T1 | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 3vwq | ACA | Flavobacterium sp. K172;Flavobacterium sp. KI723T1 | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 3vwr | ACA | Flavobacterium sp. K172;Flavobacterium sp. KI723T1 | 6-AMINOHEXANOATE-DIMER HYDROLASE | 
| 3vxi | ASC | Bjerkandera adusta | DYP | 
| 3vyw | SAM | Aquifex aeolicus | MNMC2 | 
| 3w1w | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 3w1w | SAL | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 3w2t | LF7 | Homo sapiens | DIPEPTIDYL PEPTIDASE 4 | 
| 3w37 | ACR | Beta vulgaris | ALPHA-GLUCOSIDASE | 
| 3w67 | VIV | Mus musculus | ALPHA-TOCOPHEROL TRANSFER PROTEIN | 
| 3w68 | VIV | Mus musculus | ALPHA-TOCOPHEROL TRANSFER PROTEIN | 
| 3w6h | AZM | Homo sapiens | CARBONIC ANHYDRASE 1 | 
| 3w9t | W9T | Cucumaria echinata | HEMOLYTIC LECTIN CEL-III | 
| 3war | NIO | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 3wdm | ADN | Thermococcus kodakarensis | 4-PHOSPHOPANTOATE--BETA-ALANINE LIGASE | 
| 3wel | ACR | Beta vulgaris | ALPHA-GLUCOSIDASE | 
| 3wem | ACR | Beta vulgaris | ALPHA-GLUCOSIDASE | 
| 3wen | ACR | Beta vulgaris | ALPHA-GLUCOSIDASE | 
| 3weo | ACR | Beta vulgaris | ALPHA-GLUCOSIDASE | 
| 3wfa | EDT | Bacteroides thetaiotaomicron | ALPHA-GLUCOSIDASE | 
| 3wfh | P2E | Mus musculus | MAB FAB H FRAGMENT;MAB FAB L FRAGMENT | 
| 3wg7 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 3wg7 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3wg7 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 3wg7 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 3wg7 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3whx | XPG | Mus musculus | MAB FAB H FRAGMENT;MAB FAB L FRAGMENT | 
| 3wip | ACH | Lymnaea stagnalis | ACETYLCHOLINE-BINDING PROTEIN | 
| 3wip | ACT | Lymnaea stagnalis | ACETYLCHOLINE-BINDING PROTEIN | 
| 3wqv | GCS | Ostrinia furnacalis | CHITINASE | 
| 3wqw | GCS | Ostrinia furnacalis | CHITINASE | 
| 3wrh | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3wri | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3wrj | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3wrk | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3wrl | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3wrm | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 3wsj | MK1 | Primate T-lymphotropic virus 1 | PROTEASE | 
| 3wxo | NIZ | Synechococcus elongatus | CATALASE-PEROXIDASE | 
| 3wzd | LEV | Homo sapiens | VASCULAR ENDOTHELIAL GROWTH FACTOR RECEPTOR 2 | 
| 3wze | BAX | Homo sapiens | VASCULAR ENDOTHELIAL GROWTH FACTOR RECEPTOR 2 | 
| 3x2q | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 3x2q | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 3x2q | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 3x2q | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 3xim | SOR | Actinoplanes missouriensis | D-XYLOSE ISOMERASE | 
| 3zbf | VGH | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE ROS | 
| 3zjq | NCA | Methanosarcina acetivorans | PROTOGLOBIN | 
| 3zmd | SAL | Streptomyces coelicolor | PUTATIVE TRANSCRIPTIONAL REGULATOR | 
| 3znc | BZ1 | Mus musculus | CARBONIC ANHYDRASE IV | 
| 3zoa | ACR | Mycolicibacterium smegmatis | TREHALOSE SYNTHASE/AMYLASE TRES | 
| 3zod | HQE | Pyrococcus horikoshii | FMN-BINDING PROTEIN | 
| 3zof | HQE | Thermus thermophilus | FLAVOREDOXIN | 
| 3zos | 0LI | Homo sapiens | EPITHELIAL DISCOIDIN DOMAIN-CONTAININGRECEPTOR 1 | 
| 3zq8 | DVA | Brevibacillus brevis | VAL-GRAMICIDIN A | 
| 3zqe | DXC | Salmonella enterica | PROTEIN PRGI, CELL INVASION PROTEIN SIPD | 
| 3zqt | 30Z | Escherichia coli | ANDROGEN RECEPTOR | 
| 3zqt | TES | Escherichia coli | ANDROGEN RECEPTOR | 
| 3zs3 | ACT | Malus domestica | THAUMATIN-LIKE PROTEIN | 
| 3ztv | ADN | Haemophilus influenzae | NAD NUCLEOTIDASE | 
| 3zwi | ASC | Achromobacter xylosoxidans | CYTOCHROME C' | 
| 4a3p | ACT | Homo sapiens | UBIQUITIN CARBOXYL-TERMINAL HYDROLASE 15 | 
| 4a3u | ACT | Zymomonas mobilis | NADH:FLAVIN OXIDOREDUCTASE/NADH OXIDASE | 
| 4a3u | NCA | Zymomonas mobilis | NADH:FLAVIN OXIDOREDUCTASE/NADH OXIDASE | 
| 4a6d | SAM | Homo sapiens | HYDROXYINDOLE O-METHYLTRANSFERASE | 
| 4a6e | SAM | Homo sapiens | HYDROXYINDOLE O-METHYLTRANSFERASE | 
| 4a6n | T1C | Bacteroides thetaiotaomicron | TETX2 PROTEIN | 
| 4a79 | P1B | Homo sapiens | AMINE OXIDASE [FLAVIN-CONTAINING] B | 
| 4a7a | RGZ | Homo sapiens | AMINE OXIDASE [FLAVIN-CONTAINING] B | 
| 4a7b | HAE | Homo sapiens | COLLAGENASE 3 | 
| 4a7t | 5FW | Homo sapiens | SUPEROXIDE DISMUTASE [CU-ZN] | 
| 4a7u | ALE | Homo sapiens | SUPEROXIDE DISMUTASE [CU-ZN] | 
| 4a7v | LDP | Homo sapiens | SUPEROXIDE DISMUTASE [CU-ZN] | 
| 4a81 | DXC | Betula pendula | MAJOR POLLEN ALLERGEN BET V 1-A | 
| 4a83 | DXC | Betula pendula | MAJOR POLLEN ALLERGEN BET V 1-A | 
| 4a84 | DXC | Betula pendula | MAJOR POLLEN ALLERGEN BET V 1-A | 
| 4a97 | ZPC | Dickeya chrysanthemi | CYS-LOOP LIGAND-GATED ION CHANNEL | 
| 4a99 | MIY | Bacteroides thetaiotaomicron | TETX2 PROTEIN | 
| 4a9j | TYL | Homo sapiens | BROMODOMAIN CONTAINING 2 | 
| 4a9k | TYL | Homo sapiens | CREB-BINDING PROTEIN | 
| 4abz | T1C | Escherichia coli | TETRACYCLINE REPRESSOR CLASS D | 
| 4ac0 | MIY | Escherichia coli | TETRACYCLINE REPRESSOR PROTEIN CLASS B FROMTRANSPOSON TN1 0 | 
| 4ac9 | DXC | Methanococcus maripaludis | MJ0495-LIKE PROTEIN | 
| 4aca | DXC | Methanococcus maripaludis | TRANSLATION ELONGATION FACTOR SELB | 
| 4acb | DXC | Methanococcus maripaludis | TRANSLATION ELONGATION FACTOR SELB | 
| 4ae1 | NCA | Corynebacterium diphtheriae | DIPHTHERIA TOXIN | 
| 4af0 | MOA | Cryptococcus neoformans | INOSINE-5'-MONOPHOSPHATE DEHYDROGENASE | 
| 4afg | QMR | Capitella teleta | CAPITELLA TELETA ACHBP | 
| 4aft | QMR | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 4ag8 | AXI | Homo sapiens | VASCULAR ENDOTHELIAL GROWTH FACTOR RECEPTOR 2 | 
| 4aga | ACT | Gallus gallus | LYSOZYME C | 
| 4agc | AXI | Homo sapiens | VASCULAR ENDOTHELIAL GROWTH FACTOR RECEPTOR 2 | 
| 4agd | B49 | Homo sapiens | VASCULAR ENDOTHELIAL GROWTH FACTOR RECEPTOR 2 | 
| 4amj | CVD | Meleagris gallopavo | BETA-1 ADRENERGIC RECEPTOR | 
| 4an2 | EUI | Homo sapiens | DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEINKINASE KINASE 1 | 
| 4anq | VGH | Homo sapiens | ALK TYROSINE KINASE RECEPTOR | 
| 4ans | VGH | Homo sapiens | ALK TYROSINE KINASE RECEPTOR | 
| 4apj | ACT | Gloydius blomhoffii;Homo sapiens | ANGIOTENSIN-CONVERTING ENZYME;BRADYKININ-POTENTIATING PEPTIDE B | 
| 4aq7 | LEU | Escherichia coli | LEUCINE--TRNA LIGASE | 
| 4aql | TXC | Homo sapiens | GUANINE DEAMINASE | 
| 4arc | LEU | Escherichia coli | LEUCINE--TRNA LIGASE | 
| 4asd | BAX | Homo sapiens | VASCULAR ENDOTHELIAL GROWTH FACTOR RECEPTOR 2 | 
| 4at0 | ACT | Rhodococcus jostii | 3-KETOSTEROID-DELTA4-5ALPHA-DEHYDROGENASE | 
| 4at2 | ASD | Rhodococcus jostii | 3-KETOSTEROID-DELTA4-5ALPHA-DEHYDROGENASE | 
| 4awu | 4CH | Shewanella oneidensis | OXIDOREDUCTASE, FMN-BINDING | 
| 4ax8 | SAM | Escherichia coli | WBDD | 
| 4azs | SAM | Escherichia coli | METHYLTRANSFERASE WBDD | 
| 4azt | SAM | Escherichia coli | METHYLTRANSFERASE WBDD | 
| 4azv | SAM | Escherichia coli | WBDD | 
| 4azw | SAM | Escherichia coli | WBDD | 
| 4b17 | SAM | Escherichia coli | RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASEM | 
| 4b3a | TAC | Escherichia coli | TETRACYCLINE REPRESSOR PROTEIN CLASS D | 
| 4b3o | EFZ | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 4b3q | NVP | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 4b53 | ACT | Homo sapiens | IG GAMMA-4 CHAIN C REGION | 
| 4b7n | ZMR | Influenza A virus | NEURAMINIDASE | 
| 4b7q | ZMR | Influenza A virus | NEURAMINIDASE | 
| 4b9z | ACR | Cellvibrio japonicus | ALPHA-GLUCOSIDASE, PUTATIVE, ADG31B | 
| 4bb2 | STR | Homo sapiens | CORTICOSTEROID-BINDING GLOBULIN | 
| 4bbo | ACT | Bradyrhizobium japonicum | BLR5658 PROTEIN | 
| 4bcs | ACT | Gallus gallus | CHIMERIC AVIDIN | 
| 4bds | THA | Homo sapiens | CHOLINESTERASE | 
| 4bjc | RPB | Homo sapiens | TANKYRASE-2 | 
| 4bkj | STI | Homo sapiens | EPITHELIAL DISCOIDIN DOMAIN-CONTAININGRECEPTOR 1 | 
| 4blv | SAM | Escherichia coli | RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASEJ | 
| 4bqf | QPS | Arabidopsis thaliana | ALPHA-GLUCAN PHOSPHORYLASE 2, CYTOSOLIC | 
| 4bqt | C5E | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 4bup | SAM | Mus musculus | HISTONE-LYSINE N-METHYLTRANSFERASE SUV420H1 | 
| 4bva | T3 | Mus musculus | THIOMORPHOLINE-CARBOXYLATE DEHYDROGENASE | 
| 4bvv | CPF | Homo sapiens | APOLIPOPROTEIN(A) | 
| 4bwl | MN9 | Escherichia coli | N-ACETYLNEURAMINATE LYASE | 
| 4bz6 | SHH | Schistosoma mansoni | HISTONE DEACETYLASE 8 | 
| 4bzf | ACT | Bacillus subtilis | ALDOSE 1-EPIMERASE | 
| 4c1d | X8Z | Pseudomonas aeruginosa | BETA-LACTAMASE CLASS B VIM-2 | 
| 4c1f | X8Z | Serratia marcescens | BETA-LACTAMASE IMP-1 | 
| 4c1h | X8Z | Bacillus cereus | BETA-LACTAMASE 2 | 
| 4c2p | X8Z | Homo sapiens | ANGIOTENSIN-CONVERTING ENZYME | 
| 4c39 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4c3a | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4c49 | HCY | Homo sapiens | CORTICOSTEROID-BINDING GLOBULIN | 
| 4c5l | PXL | Staphylococcus aureus | PHOSPHOMETHYLPYRIMIDINE KINASE | 
| 4c5l | UEG | Staphylococcus aureus | PHOSPHOMETHYLPYRIMIDINE KINASE | 
| 4c5n | PXL | Staphylococcus aureus | PHOSPHOMETHYLPYRIMIDINE KINASE | 
| 4c5n | UEG | Staphylococcus aureus | PHOSPHOMETHYLPYRIMIDINE KINASE | 
| 4c66 | H4C | Homo sapiens | BROMODOMAIN-CONTAINING PROTEIN 4 | 
| 4c8b | 0LI | Homo sapiens | RECEPTOR-INTERACTING SERINE/THREONINE-PROTEINKINASE 2 | 
| 4c9k | CAM | Novosphingobium aromaticivorans | CYTOCHROME P450 | 
| 4c9l | CAM | Novosphingobium aromaticivorans | CYTOCHROME P450 | 
| 4c9n | CAM | Novosphingobium aromaticivorans | CYTOCHROME P450 | 
| 4c9o | CAM | Novosphingobium aromaticivorans | CYTOCHROME P450 | 
| 4c9p | CAM | Novosphingobium aromaticivorans | CYTOCHROME P450 | 
| 4c9w | VGH | Homo sapiens | 7,8-DIHYDRO-8-OXOGUANINE TRIPHOSPHATASE | 
| 4cam | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4can | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4cao | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4cap | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4caq | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4car | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4ccq | ACT | Entamoeba histolytica | THIOREDOXIN REDUCTASE | 
| 4cd2 | FOL | Pneumocystis carinii | DIHYDROFOLATE REDUCTASE | 
| 4cdt | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4cev | GAI | [Bacillus] caldovelox | PROTEIN (ARGINASE) | 
| 4cft | H4B | Bos taurus | ENDOTHELIAL NITRIC OXIDE SYNTHASE | 
| 4ci1 | EF2 | Gallus gallus | PROTEIN CEREBLON | 
| 4ci2 | LVY | Gallus gallus | PROTEIN CEREBLON | 
| 4ci3 | Y70 | Gallus gallus | PROTEIN CEREBLON | 
| 4cip | ASC | Achromobacter xylosoxidans | CYTOCHROME C' | 
| 4cki | ADN | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASERECEPTOR RET | 
| 4ckj | ADN | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASERECEPTOR RET | 
| 4cla | CLM | Escherichia coli | TYPE III CHLORAMPHENICOL ACETYLTRANSFERASE | 
| 4coq | SAN | Thermovibrio ammonificans | CARBONATE DEHYDRATASE | 
| 4cox | IMN | Mus musculus | CYCLOOXYGENASE-2 | 
| 4cp3 | RBT | Homo sapiens | B-CELL LYMPHOMA 6 PROTEIN | 
| 4cp4 | CAM | Pseudomonas putida | CYTOCHROME P450-CAM | 
| 4cpn | ZMR | Influenza B virus | NEURAMINIDASE | 
| 4cpz | ZMR | Influenza B virus | NEURAMINIDASE | 
| 4csv | STI | synthetic construct | SRC-ABL TYROSINE KINASE ANCESTOR | 
| 4ctj | SAM | Dengue virus | NON-STRUCTURAL PROTEIN 5 | 
| 4ctk | SAM | Dengue virus | POLYPROTEIN | 
| 4ctp | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4ctq | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4ctr | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4ctt | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4ctu | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4ctv | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4ctw | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4ctx | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4cty | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4ctz | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4cu0 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4cu1 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4cut | TYL | Homo sapiens | BROMODOMAIN ADJACENT TO ZINC FINGER DOMAINPROTEIN 2B | 
| 4cwv | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4cww | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4cwx | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4cwy | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4cwz | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4cx0 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4cx3 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4cx4 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4cx5 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4cx6 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4cx7 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 4d1n | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4d1o | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d1p | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d1y | RBF | Bacteroides thetaiotaomicron | PUTATIVE PROTEASE I | 
| 4d2y | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4d2z | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4d30 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4d31 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4d32 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4d33 | ACT | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d33 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d33 | MTL | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d34 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d35 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d36 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d37 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d38 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d39 | ACT | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d39 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d39 | MTL | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d3a | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4d3b | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4d7b | TCW | Homo sapiens | TRANSTHYRETIN | 
| 4d7h | H4B | Bacillus subtilis | NITRIC OXIDE SYNTHASE OXYGENASE | 
| 4d7o | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4d9h | ADN | Bacillus subtilis | PURINE NUCLEOSIDE PHOSPHORYLASE DEOD-TYPE | 
| 4da6 | GA2 | Bacillus subtilis | PURINE NUCLEOSIDE PHOSPHORYLASE DEOD-TYPE | 
| 4da7 | AC2 | Bacillus subtilis | PURINE NUCLEOSIDE PHOSPHORYLASE DEOD-TYPE | 
| 4daj | 0HK | Escherichia virus T4;Rattus norvegicus | MUSCARINIC ACETYLCHOLINE RECEPTOR M3,LYSOZYME | 
| 4dan | 2FA | Bacillus subtilis | PURINE NUCLEOSIDE PHOSPHORYLASE DEOD-TYPE | 
| 4dc3 | 2FA | Schistosoma mansoni | ADENOSINE KINASE | 
| 4dc3 | ADN | Schistosoma mansoni | ADENOSINE KINASE | 
| 4dcm | SAM | Escherichia coli | RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASEG | 
| 4df2 | 4CH | Scheffersomyces stipitis | NADPH DEHYDROGENASE | 
| 4df3 | SAM | Aeropyrum pernix | FIBRILLARIN-LIKE RRNA/TRNA2'-O-METHYLTRANSFERASE | 
| 4dfb | KAN | Enterococcus casseliflavus | APH(2')-ID | 
| 4dfr | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4dfu | KAN | Enterococcus casseliflavus | APH(2')-ID | 
| 4dje | C2F | Moorella thermoacetica | 5-METHYLTETRAHYDROFOLATE CORRINOID/IRONSULFUR PROTEIN METHYLTRANSFERASE | 
| 4djf | C2F | Moorella thermoacetica | 5-METHYLTETRAHYDROFOLATE CORRINOID/IRONSULFUR PROTEIN METHYLTRANSFERASE | 
| 4dm8 | REA | Homo sapiens | RETINOIC ACID RECEPTOR BETA | 
| 4dmg | SAM | Thermus thermophilus | PUTATIVE UNCHARACTERIZED PROTEIN TTHA1493 | 
| 4do3 | 0LA | Rattus norvegicus | FATTY-ACID AMIDE HYDROLASE 1 | 
| 4dpr | X8Z | Homo sapiens | LEUKOTRIENE A-4 HYDROLASE | 
| 4dqb | 017 | Human immunodeficiency virus 1 | ASPARTYL PROTEASE | 
| 4dqc | 017 | Human immunodeficiency virus 1 | ASPARTYL PROTEASE | 
| 4dqe | 017 | Human immunodeficiency virus 1 | ASPARTYL PROTEASE | 
| 4dqf | 017 | Human immunodeficiency virus 1 | ASPARTYL PROTEASE | 
| 4dqh | 017 | Human immunodeficiency virus 1 | WILD-TYPE HIV-1 PROTEASE DIMER | 
| 4dr2 | PAR | Thermus thermophilus | 16S RRNA;30S RIBOSOMAL PROTEIN S10;30S RIBOSOMAL PROTEIN S9 | 
| 4dr3 | SRY | Thermus thermophilus | 16S RRNA;30S RIBOSOMAL PROTEIN S12 | 
| 4dr5 | SRY | Thermus thermophilus | 16S RRNA;30S RIBOSOMAL PROTEIN S12 | 
| 4dr6 | SRY | Thermus thermophilus | 16S RRNA;30S RIBOSOMAL PROTEIN S12 | 
| 4drh | RAP | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP5;SERINE/THREONINE-PROTEIN KINASE MTOR | 
| 4dri | RAP | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP5;SERINE/THREONINE-PROTEIN KINASE MTOR | 
| 4drj | RAP | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP4;SERINE/THREONINE-PROTEIN KINASE MTOR | 
| 4dt8 | ADN | Enterococcus casseliflavus | APH(2'')-ID | 
| 4dta | ADN | Enterococcus casseliflavus | APH(2'')-ID | 
| 4dtz | LDP | Bacillus megaterium | CYTOCHROME P450 BM3 VARIANT 8C8 | 
| 4du2 | LDP | Bacillus megaterium | CYTOCHROME P450 BM3 VARIANT B7 | 
| 4dub | LDP | Bacillus megaterium | CYTOCHROME P450 BM3 VARIANT 9D7 | 
| 4duz | SRY | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S12 | 
| 4dv1 | SRY | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S12 | 
| 4dv3 | SRY | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S12 | 
| 4dv5 | SRY | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S12 | 
| 4dv7 | SRY | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S12 | 
| 4dvo | SOR | Streptomyces rubiginosus | XYLOSE ISOMERASE | 
| 4dx5 | MIY | Escherichia coli | ACRIFLAVINE RESISTANCE PROTEIN B | 
| 4dx7 | DM2 | Escherichia coli | ACRIFLAVINE RESISTANCE PROTEIN B | 
| 4dxu | ACA | Bos taurus | LACTOTRANSFERRIN | 
| 4dz2 | FK5 | Burkholderia pseudomallei | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE | 
| 4dz3 | FK5 | Burkholderia pseudomallei | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE | 
| 4e0f | RBF | Brucella abortus | RIBOFLAVIN SYNTHASE SUBUNIT ALPHA | 
| 4e1g | LNL | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 4e1v | URF | Salmonella enterica | URIDINE PHOSPHORYLASE | 
| 4e3a | ADN | Rhizobium etli | SUGAR KINASE PROTEIN | 
| 4e3h | HQE | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4e47 | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SETD7 | 
| 4e7b | ACT | Enterobacter cloacae | UDP-N-ACETYLGLUCOSAMINE1-CARBOXYVINYLTRANSFERASE | 
| 4e7c | ACT | Enterobacter cloacae | UDP-N-ACETYLGLUCOSAMINE1-CARBOXYVINYLTRANSFERASE | 
| 4e7g | ACT | Enterobacter cloacae | UDP-N-ACETYLGLUCOSAMINE1-CARBOXYVINYLTRANSFERASE | 
| 4eah | ACT | Mus musculus | FORMIN-LIKE PROTEIN 3 | 
| 4eah | ACT | Mus musculus;Oryctolagus cuniculus | ACTIN, ALPHA SKELETAL MUSCLE;FORMIN-LIKE PROTEIN 3 | 
| 4eah | ACT | Oryctolagus cuniculus | ACTIN, ALPHA SKELETAL MUSCLE | 
| 4eat | BEZ | Rhodopseudomonas palustris | BENZOATE-COENZYME A LIGASE | 
| 4eb4 | D16 | Mus musculus | THYMIDYLATE SYNTHASE | 
| 4eb6 | VLB | Ovis aries | TUBULIN ALPHA CHAIN;TUBULIN BETA CHAIN | 
| 4ebk | TOY | Pseudomonas aeruginosa | AMINOGLYCOSIDE NUCLEOTIDYLTRANSFERASE | 
| 4eck | FOL | Toxoplasma gondii | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 4ef3 | CU | Escherichia coli | BLUE COPPER OXIDASE CUEO | 
| 4eil | FOL | Toxoplasma gondii | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 4eis | DAH | Neurospora crassa | POLYSACCHARIDE MONOOXYGENASE-3 | 
| 4eix | NIM | Daboia russelii | PHOSPHOLIPASE A2 VRV-PL-VIIIA | 
| 4ej1 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4ejg | NCT | Homo sapiens | CYTOCHROME P450 2A13 | 
| 4ejj | NCT | Homo sapiens | CYTOCHROME P450 2A6 | 
| 4ejw | SRY | Staphylococcus epidermidis | TRANSCRIPTIONAL REGULATOR TCAR | 
| 4ek1 | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4em0 | KAN | Staphylococcus aureus | UNCHARACTERIZED HTH-TYPE TRANSCRIPTIONALREGULATOR SAR2349 | 
| 4em0 | SAL | Staphylococcus aureus | UNCHARACTERIZED HTH-TYPE TRANSCRIPTIONALREGULATOR SAR2349 | 
| 4em2 | SAL | Staphylococcus aureus | UNCHARACTERIZED HTH-TYPE TRANSCRIPTIONALREGULATOR SAR2349 | 
| 4ema | BRL | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 4enh | FVX | Homo sapiens | CHOLESTEROL 24-HYDROXYLASE | 
| 4eoh | TEP | Homo sapiens | PYRIDOXAL KINASE | 
| 4eq4 | SAL | Arabidopsis thaliana | 4-SUBSTITUTED BENZOATES-GLUTAMATE LIGASEGH3.12 | 
| 4eql | SAL | Arabidopsis thaliana | 4-SUBSTITUTED BENZOATES-GLUTAMATE LIGASEGH3.12 | 
| 4eux | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4euz | MEM | Serratia fonticola | CARBAPENEM-HYDROLIZING BETA-LACTAMASE SFC-1 | 
| 4evr | BEZ | Rhodopseudomonas palustris | PUTATIVE ABC TRANSPORTER SUBUNIT,SUBSTRATE-BINDING COMPONENT | 
| 4evy | TOY | Acinetobacter haemolyticus | AMINOGLYCOSIDE N(6')-ACETYLTRANSFERASE TYPE 1 | 
| 4exs | X8Z | Klebsiella pneumoniae | BETA-LACTAMASE NDM-1 | 
| 4ey6 | GNT | Homo sapiens | ACETYLCHOLINESTERASE | 
| 4ey7 | E20 | Homo sapiens | ACETYLCHOLINESTERASE | 
| 4eyr | RIT | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 4eys | ACT | Streptococcus pneumoniae | MCCC FAMILY PROTEIN | 
| 4eyz | CCS | Ruminococcus flavefaciens | CELLULOSOME-RELATED PROTEIN MODULE FROMRUMINOCOCCUS FLAVEFACIENS THAT RESEMBLESPAPAIN-LIKE CYSTEINE PEPTIDASES | 
| 4f3t | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4f4d | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 4f5z | BEZ | Rhodococcus rhodochrous | HALOALKANE DEHALOGENASE | 
| 4f84 | SAM | Streptomyces lasaliensis | GERANYL DIPHOSPHATE 2-C-METHYLTRANSFERASE | 
| 4f8h | RKE | Gloeobacter violaceus | PROTON-GATED ION CHANNEL | 
| 4f8y | VK3 | Streptococcus mutans | NADPH QUINONE OXIDOREDUCTASE | 
| 4f92 | SAN | Homo sapiens | U5 SMALL NUCLEAR RIBONUCLEOPROTEIN 200 KDAHELICASE | 
| 4f93 | SAN | Homo sapiens | U5 SMALL NUCLEAR RIBONUCLEOPROTEIN 200 KDAHELICASE | 
| 4fak | SAM | Staphylococcus aureus | RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASEH | 
| 4fe1 | PQN | Thermosynechococcus elongatus | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1;PHOTOSYSTEM I REACTION CENTER SUBUNIT IX | 
| 4fe1 | PQN | Thermosynechococcus elongatus | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 4feu | KAN | Acinetobacter baumannii | AMINOGLYCOSIDE 3'-PHOSPHOTRANSFERASEAPHA1-IAB | 
| 4fev | KAN | Acinetobacter baumannii | AMINOGLYCOSIDE 3'-PHOSPHOTRANSFERASEAPHA1-IAB | 
| 4few | KAN | Acinetobacter baumannii | AMINOGLYCOSIDE 3'-PHOSPHOTRANSFERASEAPHA1-IAB | 
| 4fex | KAN | Acinetobacter baumannii | AMINOGLYCOSIDE 3'-PHOSPHOTRANSFERASEAPHA1-IAB | 
| 4ffw | 715 | Rattus norvegicus | DIPEPTIDYL PEPTIDASE 4 | 
| 4fgj | 1PQ | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 4fgk | 0TX | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 4fgl | CLQ | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 4fgz | CQA | Plasmodium falciparum | PHOSPHOETHANOLAMINE N-METHYLTRANSFERASE | 
| 4fh2 | 0RN | Klebsiella pneumoniae | BETA-LACTAMASE SHV-1 | 
| 4fhb | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4fia | 0U9 | Homo sapiens | CHOLESTEROL 24-HYDROXYLASE | 
| 4fia | 198 | Homo sapiens | CHOLESTEROL 24-HYDROXYLASE | 
| 4fim | CEL | Bos taurus | LACTOTRANSFERRIN | 
| 4fjp | NPS | Bos taurus | LACTOTRANSFERRIN | 
| 4fn9 | STR | - | STEROID RECEPTOR 2 | 
| 4fo4 | MOA | Vibrio cholerae | INOSINE 5'-MONOPHOSPHATE DEHYDROGENASE | 
| 4fog | C2F | Mycobacterium tuberculosis | THYMIDYLATE SYNTHASE | 
| 4for | FLP | Bos taurus | LACTOTRANSFERRIN | 
| 4fox | D16 | Mycobacterium tuberculosis | THYMIDYLATE SYNTHASE | 
| 4fp9 | SAM | Homo sapiens | METHYLTRANSFERASE NSUN4 | 
| 4fqs | LYA | Mycobacterium tuberculosis | THYMIDYLATE SYNTHASE | 
| 4fr0 | SAM | Cyanidioschyzon sp. 5508 | ARSENIC METHYLTRANSFERASE | 
| 4fr8 | TNG | Homo sapiens | ALDEHYDE DEHYDROGENASE, MITOCHONDRIAL | 
| 4fu8 | ACT | Homo sapiens | UROKINASE-TYPE PLASMINOGEN ACTIVATOR | 
| 4fu9 | ACT | Homo sapiens | UROKINASE-TYPE PLASMINOGEN ACTIVATOR | 
| 4fub | ACT | Homo sapiens | UROKINASE-TYPE PLASMINOGEN ACTIVATOR | 
| 4fuf | ACT | Homo sapiens | UROKINASE-TYPE PLASMINOGEN ACTIVATOR | 
| 4fvq | ACT | Homo sapiens | TYROSINE-PROTEIN KINASE JAK2 | 
| 4fvw | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4fvx | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4fvy | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4fvz | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4fw0 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4fwd | BO2 | Meiothermus taiwanensis | TTC1975 PEPTIDASE | 
| 4fxs | MOA | Vibrio cholerae | INOSINE-5'-MONOPHOSPHATE DEHYDROGENASE | 
| 4fzv | SAM | Homo sapiens | PUTATIVE METHYLTRANSFERASE NSUN4 | 
| 4g0c | AZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4g0u | ASW | ;Homo sapiens | DNA TOPOISOMERASE 2-BETA | 
| 4g0u | ASW | Homo sapiens | DNA TOPOISOMERASE 2-BETA | 
| 4g0v | MIX | ;Homo sapiens | DNA TOPOISOMERASE 2-BETA | 
| 4g0v | MIX | Homo sapiens | DNA TOPOISOMERASE 2-BETA | 
| 4g10 | ACT | Sphingomonas paucimobilis | GLUTATHIONE S-TRANSFERASE HOMOLOG | 
| 4g19 | ACT | Phanerochaete chrysosporium | GLUTATHIONE TRANSFERASE GTE1 | 
| 4g1b | ECN | Saccharomyces cerevisiae | FLAVOHEMOGLOBIN | 
| 4g1q | T27 | Human immunodeficiency virus 1 | P51 RT;REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 4g24 | ACA | Arabidopsis thaliana | PENTATRICOPEPTIDE REPEAT-CONTAINING PROTEINAT2G32230, MITOCHONDRIAL | 
| 4g2z | ID8 | Bos taurus | LACTOTRANSFERRIN | 
| 4g3r | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4g5j | 0WM | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 4g77 | TLF | Bos taurus | LACTOTRANSFERRIN | 
| 4g7a | AZM | Sulfurihydrogenibium sp. YO3AOP1 | CARBONATE DEHYDRATASE | 
| 4g8z | TOP | Pneumocystis jirovecii | DIHYDROFOLATE REDUCTASE | 
| 4gbo | CU | Thermobifida fusca | E7 | 
| 4gc9 | ACT | Mus musculus | DIMETHYLADENOSINE TRANSFERASE 1,MITOCHONDRIAL | 
| 4gc9 | SAM | Mus musculus | DIMETHYLADENOSINE TRANSFERASE 1,MITOCHONDRIAL | 
| 4gcp | AIC | Escherichia coli | OUTER MEMBRANE PROTEIN F | 
| 4gh8 | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4gkh | KAN | Acinetobacter baumannii | AMINOGLYCOSIDE 3'-PHOSPHOTRANSFERASEAPHA1-IAB | 
| 4gki | KAN | Acinetobacter baumannii | AMINOGLYCOSIDE 3'-PHOSPHOTRANSFERASEAPHA1-IAB | 
| 4gn6 | TYL | Bos taurus | LACTOPEROXIDASE | 
| 4gqe | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4gqp | B40 | Mus musculus | ANTI-METH SCFV | 
| 4grk | KTR | Bos taurus | LACTOTRANSFERRIN | 
| 4grq | AVL | Homo sapiens | MACROPHAGE MIGRATION INHIBITORY FACTOR | 
| 4h1n | CGE | Oryctolagus cuniculus | CYTOCHROME P450 2B4 | 
| 4h2f | ADN | Homo sapiens | 5'-NUCLEOTIDASE | 
| 4h2g | ADN | Homo sapiens | 5'-NUCLEOTIDASE | 
| 4h9m | HAE | Canavalia ensiformis | UREASE | 
| 4haj | DXC | Geobacter sulfurreducens | PPCA | 
| 4hb6 | DXC | Geobacter sulfurreducens | PPCA | 
| 4hb8 | DXC | Geobacter sulfurreducens | PPCA | 
| 4hbf | DXC | Geobacter sulfurreducens | PPCA | 
| 4hc3 | DXC | Geobacter sulfurreducens | PPCA | 
| 4hdl | DXC | Geobacter sulfurreducens | PPCA | 
| 4hfp | 15U | Homo sapiens | PROTHROMBIN | 
| 4hiv | DVA | Streptomyces antibioticus | ACTINOMYCIN D | 
| 4hjo | AQ4 | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 4hla | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 4hlw | TES | Homo sapiens | ANDROGEN RECEPTOR | 
| 4hoj | ACT | Neisseria gonorrhoeae | REGF PROTEIN | 
| 4htf | ACT | Escherichia coli | S-ADENOSYLMETHIONINE-DEPENDENTMETHYLTRANSFERASE | 
| 4htf | SAM | Escherichia coli | S-ADENOSYLMETHIONINE-DEPENDENTMETHYLTRANSFERASE | 
| 4hvc | HFG | Homo sapiens | BIFUNCTIONAL GLUTAMATE/PROLINE--TRNA LIGASE | 
| 4hvr | SAL | Cupriavidus metallidurans | 3-HYDROXYANTHRANILATE 3,4-DIOXYGENASE | 
| 4hwk | SFY | Homo sapiens | SEPIAPTERIN REDUCTASE | 
| 4hxy | ACA | Streptomyces sp. HK803 | PLM1 | 
| 4hyf | NCA | Homo sapiens | TANKYRASE-2 | 
| 4hyt | OBN | Sus scrofa | SODIUM/POTASSIUM-TRANSPORTING ATPASE SUBUNITALPHA-1 | 
| 4hz2 | BEZ | Xanthobacter autotrophicus | GLUTATHIONE S-TRANSFERASE DOMAIN | 
| 4i00 | ZMR | Influenza A virus | NEURAMINIDASE | 
| 4i13 | FOL | Escherichia coli;Lama glama | DIHYDROFOLATE REDUCTASE;PROTEIN CA1697 (NANOBODY) | 
| 4i1n | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4i1r | LZU | Homo sapiens | MUCOSA-ASSOCIATED LYMPHOID TISSUE LYMPHOMATRANSLOCATION PROTEIN 1 | 
| 4i22 | IRE | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 4i41 | MIX | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE PIM-1 | 
| 4i89 | 1FL | Homo sapiens | TRANSTHYRETIN | 
| 4i90 | ACT | Staphylococcus aureus | 1-PHOSPHATIDYLINOSITOL PHOSPHODIESTERASE | 
| 4iaa | RTZ | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE PIM-1 | 
| 4iaq | 2GM | Escherichia coli;Homo sapiens | CHIMERA PROTEIN OF HUMAN 5-HYDROXYTRYPTAMINERECEPTOR 1B AND E. COLI SOLUBLE CYTOCHROMEB562 | 
| 4iar | ERM | Escherichia coli;Homo sapiens | CHIMERA PROTEIN OF HUMAN 5-HYDROXYTRYPTAMINERECEPTOR 1B AND E. COLI SOLUBLE CYTOCHROMEB562 | 
| 4ib4 | ERM | Escherichia coli;Homo sapiens | CHIMERA PROTEIN OF HUMAN 5-HYDROXYTRYPTAMINERECEPTOR 2B AND E. COLI SOLUBLE CYTOCHROMEB562 | 
| 4icl | T27 | Human immunodeficiency virus 1 | P51 RT;REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 4id5 | T27 | Human immunodeficiency virus 1 | P51 RT;REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 4idk | T27 | Human immunodeficiency virus 1 | P51 RT;REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 4ifg | 1E8 | Toxoplasma gondii | CALMODULIN-DOMAIN PROTEIN KINASE 1 | 
| 4ifv | T27 | Human immunodeficiency virus 1 | EXORIBONUCLEASE H, P66 RT;GAG-POL POLYPROTEIN | 
| 4ifx | ACT | Treponema pallidum | THIAMINE BIOSYNTHESIS LIPOPROTEIN APBE | 
| 4ify | T27 | Human immunodeficiency virus 1 | P51 RT;REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 4ig1 | ACT | Treponema pallidum | FAD:PROTEIN FMN TRANSFERASE | 
| 4ig3 | T27 | Human immunodeficiency virus 1 | P51 RT;REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 4ig5 | MMZ | Capra hircus | LACTOPEROXIDASE | 
| 4ii8 | 010 | Gallus gallus | LYSOZYME C | 
| 4iil | RBF | Treponema pallidum | MEMBRANE LIPOPROTEIN TPN38(B) | 
| 4iiz | LUR | Homo sapiens | TRANSTHYRETIN | 
| 4ij8 | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SETD8 | 
| 4iji | BEZ | Pseudomonas protegens | GLUTATHIONE S-TRANSFERASE-LIKE PROTEIN YIBF | 
| 4ik6 | LUR | Homo sapiens | TRANSTHYRETIN | 
| 4ik7 | IMN | Homo sapiens | TRANSTHYRETIN | 
| 4iki | IMN | Homo sapiens | TRANSTHYRETIN | 
| 4ikj | SUZ | Homo sapiens | TRANSTHYRETIN | 
| 4ikk | SUZ | Homo sapiens | TRANSTHYRETIN | 
| 4ikl | SUZ | Homo sapiens | TRANSTHYRETIN | 
| 4ima | ADN | Homo sapiens | PYRUVATE KINASE | 
| 4imt | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4imu | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4imw | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4imx | H4B | Bos taurus | SUBUNIT A | 
| 4iom | FOL | Moorella thermoacetica | FORMATE--TETRAHYDROFOLATE LIGASE | 
| 4ip7 | ADN | Homo sapiens | PYRUVATE KINASE ISOZYMES L | 
| 4ipm | ACT | Limnoria quadripunctata | GH7 FAMILY PROTEIN | 
| 4iqq | D16 | Caenorhabditis elegans | THYMIDYLATE SYNTHASE | 
| 4ir0 | FCN | Bacillus anthracis | METALLOTHIOL TRANSFERASE FOSB 2 | 
| 4iv0 | SAM | Plasmodium vivax | PHOSPHOETHANOLAMINE N-METHYLTRANSFERASE,PUTATIVE | 
| 4iv8 | SAM | Plasmodium knowlesi | PHOSPHOETHANOLAMINEN-METHYLTRANSFERASE,PUTATIVE | 
| 4iw9 | ACT | Mannheimia haemolytica | GLUTATHIONE TRANSFERASE | 
| 4j03 | FVS | Homo sapiens | BIFUNCTIONAL EPOXIDE HYDROLASE 2 | 
| 4j14 | X2N | Homo sapiens | CHOLESTEROL 24-HYDROXYLASE | 
| 4j24 | EST | Homo sapiens | ESTROGEN RECEPTOR BETA | 
| 4j26 | EST | Homo sapiens | ESTROGEN RECEPTOR BETA | 
| 4j4v | SVR | SFTS phlebovirus | NUCLEOCAPSID PROTEIN | 
| 4j5j | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 4j6c | STR | Nocardia farcinica | CYTOCHROME P450 MONOOXYGENASE | 
| 4j6d | TES | Nocardia farcinica | CYTOCHROME P450 MONOOXYGENASE | 
| 4j7u | YTZ | Homo sapiens | SEPIAPTERIN REDUCTASE | 
| 4j7x | SAS | Homo sapiens | SEPIAPTERIN REDUCTASE | 
| 4j83 | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SETD7 | 
| 4jbt | ASD | Nocardia farcinica | CYTOCHROME P450 MONOOXYGENASE | 
| 4jd1 | FCN | Bacillus anthracis | METALLOTHIOL TRANSFERASE FOSB 2 | 
| 4jd6 | TOY | Mycobacterium tuberculosis | ENHANCED INTRACELLULAR SURVIVAL PROTEIN | 
| 4jds | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SETD7 | 
| 4jec | 478 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 4jh3 | FCN | Bacillus cereus | METALLOTHIOL TRANSFERASE FOSB | 
| 4jh4 | FCN | Bacillus cereus | METALLOTHIOL TRANSFERASE FOSB | 
| 4jh5 | FCN | Bacillus cereus | METALLOTHIOL TRANSFERASE FOSB | 
| 4jh6 | FCN | Bacillus cereus | METALLOTHIOL TRANSFERASE FOSB | 
| 4jh8 | FCN | Bacillus cereus | METALLOTHIOL TRANSFERASE FOSB | 
| 4ji1 | SRY | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S12 | 
| 4ji3 | SRY | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S12 | 
| 4ji8 | SRY | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S12 | 
| 4jjk | FOL | Moorella thermoacetica | FORMATE--TETRAHYDROFOLATE LIGASE | 
| 4jks | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4jku | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4jlg | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SETD7 | 
| 4jlt | 8PR | Oryctolagus cuniculus | CYTOCHROME P450 2B4 | 
| 4jq1 | NPS | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4jq2 | SUZ | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4jq4 | IMN | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4jqa | ID8 | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4js9 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 4jse | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4jsf | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4jsg | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4jsh | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4jsi | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4jsj | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4jsk | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4jsl | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4jsm | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4jtp | ASC | Momordica balsamina | RRNA N-GLYCOSIDASE | 
| 4jtq | FLP | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4jtr | IBP | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4jtr | IZP | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4juo | LFX | ;Streptococcus pneumoniae | DNA TOPOISOMERASE 4 SUBUNIT A;DNA TOPOISOMERASE 4 SUBUNIT B;E-SITE DNA | 
| 4jvl | EST | Homo sapiens | ESTROGEN SULFOTRANSFERASE | 
| 4jx1 | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4jxc | SAM | Thermotoga maritima | FEFE-HYDROGENASE MATURASE | 
| 4k0b | SAM | Saccharolobus solfataricus | S-ADENOSYLMETHIONINE SYNTHASE | 
| 4k0s | AZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4k0z | MZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4k13 | ETS | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4k17 | OHB | Mus musculus | LEUCINE-RICH REPEAT-CONTAINING PROTEIN 16A | 
| 4k36 | SAM | Clostridium perfringens | ANAEROBIC SULFATASE-MATURATING ENZYME | 
| 4k37 | SAM | Clostridium perfringens | ANAEROBIC SULFATASE-MATURATING ENZYME | 
| 4k38 | SAM | ;Clostridium perfringens | ANAEROBIC SULFATASE-MATURATING ENZYME;KP18CYS PEPTIDE | 
| 4k39 | SAM | ;Clostridium perfringens | ANAEROBIC SULFATASE-MATURATING ENZYME;CP18CYS PEPTIDE | 
| 4k4y | ACT | Enterovirus B | RNA-DEPENDENT RNA POLYMERASE | 
| 4k50 | ACT | ;Rhinovirus A | RNA (33-MER);RNA POLYMERASE 3D-POL | 
| 4k50 | ACT | Rhinovirus A | RNA POLYMERASE 3D-POL | 
| 4k5d | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4k5e | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4k5f | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4k5g | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4k5h | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4k5i | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4k5j | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4k5k | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4k6i | 9RA | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 4k7a | MXD | Homo sapiens | ANDROGEN RECEPTOR | 
| 4k7g | ACT | Agrobacterium vitis | 3-HYDROXYPROLINE DEHYDRATSE | 
| 4k87 | ADN | Homo sapiens | PROLINE--TRNA LIGASE | 
| 4k88 | HFG | Homo sapiens | PROLINE--TRNA LIGASE | 
| 4k8c | ADN | Rhizobium etli | SUGAR KINASE | 
| 4k8k | ADN | Rhizobium etli | SUGAR KINASE | 
| 4k8p | ADN | Rhizobium etli | SUGAR KINASE | 
| 4k8t | ADN | Rhizobium etli | SUGAR KINASE | 
| 4k93 | ADN | Rhizobium etli | SUGAR KINASE | 
| 4k9c | ADN | Rhizobium etli | SUGAR KINASE | 
| 4k9i | ADN | Rhizobium etli | SUGAR KINASE | 
| 4kad | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4kah | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4kal | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4kan | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4kbe | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4kch | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kci | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kcj | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kck | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kcl | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kcm | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kcn | ACT | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kcn | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kcn | MTL | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kco | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4kcp | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4kcq | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4kcr | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4kcs | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4keb | FOL | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 4kf9 | ACT | Ralstonia solanacearum | GLUTATHIONE S-TRANSFERASE PROTEIN | 
| 4kfa | ZOL | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4kfb | T27 | Human immunodeficiency virus 1 | P51 RT;REVERSE TRANSCRIPTASE/RIBONUCLEASE H,EXORIBONUCLEA P66 RT | 
| 4kfj | FOL | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 4khp | PAR | Thermus thermophilus | 16S RIBOSOMAL RNA;30S RIBOSOMAL PROTEIN S10;30S RIBOSOMAL PROTEIN S9 | 
| 4kic | SAM | Streptomyces hygroscopicus | METHYLTRANSFERASE MPPJ | 
| 4kjj | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4kjk | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4kjl | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4kky | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4kla | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 4klr | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 4km0 | CP6 | Mycobacterium tuberculosis | DIHYDROFOLATE REDUCTASE | 
| 4km2 | TOP | Mycobacterium tuberculosis | DIHYDROFOLATE REDUCTASE | 
| 4kmm | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 4kmu | RFP | Escherichia coli | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA | 
| 4kmu | RFP | Escherichia coli | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA;RNA POLYMERASE SIGMA FACTOR RPOD | 
| 4kmz | FOL | Homo sapiens | FOLATE RECEPTOR BETA | 
| 4kn0 | MTX | Homo sapiens | FOLATE RECEPTOR BETA | 
| 4kn2 | LYA | Homo sapiens | FOLATE RECEPTOR BETA | 
| 4koe | TR6 | ;Streptococcus pneumoniae | DNA TOPOISOMERASE 4 SUBUNIT A;DNA TOPOISOMERASE 4 SUBUNIT B;E-SITE DNA2 | 
| 4koe | TR6 | ;Streptococcus pneumoniae | DNA TOPOISOMERASE 4 SUBUNIT A;DNA TOPOISOMERASE 4 SUBUNIT B;E-SITE DNA4 | 
| 4kos | 4KO | Pseudomonas aeruginosa | UNCHARACTERIZED PROTEIN | 
| 4kot | CE3 | Pseudomonas aeruginosa | UNCHARACTERIZED PROTEIN | 
| 4kou | C04 | Pseudomonas aeruginosa | UNCHARACTERIZED PROTEIN | 
| 4kov | KOV | Pseudomonas aeruginosa | UNCHARACTERIZED PROTEIN | 
| 4kow | CFX | Pseudomonas aeruginosa | UNCHARACTERIZED PROTEIN | 
| 4kox | CLS | Pseudomonas aeruginosa | UNCHARACTERIZED PROTEIN | 
| 4koy | CSC | Pseudomonas aeruginosa | UNCHARACTERIZED PROTEIN | 
| 4kpd | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4kpj | 210 | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4kq5 | ZOL | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4kq8 | ASD | Homo sapiens | CYTOCHROME P450 19A1 | 
| 4kqi | NIO | Salmonella enterica | NICOTINATE-NUCLEOTIDE--DIMETHYLBENZIMIDAZOLEPHOSPHORIBOSYLTRANSFERASE | 
| 4kqs | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4kr3 | GLY | Homo sapiens | GLYCINE--TRNA LIGASE | 
| 4kr4 | AIC | Salmonella enterica | OUTER MEMBRANE PROTEIN F | 
| 4kr8 | DM1 | Salmonella enterica | OUTER MEMBRANE PROTEIN F | 
| 4kra | CPF | Salmonella enterica | OUTER MEMBRANE PROTEIN F | 
| 4krh | SAM | Haemonchus contortus | PHOSPHOETHANOLAMINE N-METHYLTRANSFERASE 2 | 
| 4ks8 | B49 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE PAK 6 | 
| 4ksz | CYS | Bos taurus | LACTOPEROXIDASE | 
| 4kt0 | PQN | Synechocystis sp. PCC 6803 | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1;PHOTOSYSTEM I REACTION CENTER SUBUNIT IX | 
| 4kt0 | PQN | Synechocystis sp. PCC 6803 | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 4ktt | SAM | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 4ktv | ADN | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 4kuk | RBF | Dinoroseobacter shibae | BLUE-LIGHT PHOTORECEPTOR | 
| 4kuo | RBF | Dinoroseobacter shibae | BLUE-LIGHT PHOTORECEPTOR | 
| 4ky8 | MTX | Cryptosporidium hominis | BIFUNCTIONAL THYMIDYLATESYNTHASE-DIHYDROFOLATE REDUCTASE | 
| 4kya | FOL | Toxoplasma gondii | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 4kyk | IMN | Mus musculus | LACTOYLGLUTATHIONE LYASE | 
| 4kys | VIB | Clostridium botulinum | THIAMINE PYRIDINYLASE I | 
| 4l1a | AB1 | Human immunodeficiency virus 1 | MDR769 HIV-1 PROTEASE | 
| 4l1w | STR | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4l1x | STR | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4l39 | SAL | Arabidopsis thaliana | 4-SUBSTITUTED BENZOATES-GLUTAMATE LIGASEGH3.12 | 
| 4l3g | ACT | Paracoccus denitrificans | METHYLAMINE DEHYDROGENASE HEAVY CHAIN | 
| 4l49 | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4l4a | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4l4b | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4l4c | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4l4d | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4l4e | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4l4f | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4l4g | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 4l64 | C2F | Candida albicans | 5-METHYLTETRAHYDROPTEROYLTRIGLUTAMATE--HOMOCYSTEINE METHYLTRANSFERASE | 
| 4l65 | C2F | Candida albicans | 5-METHYLTETRAHYDROPTEROYLTRIGLUTAMATE--HOMOCYSTEINE METHYLTRANSFERASE | 
| 4l6h | MTX | Candida albicans | 5-METHYLTETRAHYDROPTEROYLTRIGLUTAMATE--HOMOCYSTEINE METHYLTRANSFERASE | 
| 4l6v | PQN | Bacillus subtilis;Synechocystis sp. PCC 6803 | FUSION PROTEIN OF PHOTOSYSTEM I SUBUNIT IIIAND SUBUNIT IX;PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 4l6v | PQN | Synechocystis sp. PCC 6803 | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 4l78 | ACT | Salmonella enterica | PHOSPHORIBOSYLFORMYLGLYCINAMIDINE SYNTHASE | 
| 4l7i | SAM | Saccharolobus solfataricus | S-ADENOSYLMETHIONINE SYNTHASE | 
| 4l8f | MTX | Danio rerio | GAMMA-GLUTAMYL HYDROLASE | 
| 4l8w | MTX | Danio rerio | GAMMA-GLUTAMYL HYDROLASE | 
| 4l9i | 8PR | Bos taurus | RHODOPSIN KINASE | 
| 4l9q | 9TP | Homo sapiens | SERUM ALBUMIN | 
| 4la0 | 198 | Homo sapiens | SERUM ALBUMIN | 
| 4laj | ACA | Human immunodeficiency virus 1 | HIV-1 YU2 GP120 ENVELOPE GLYCOPROTEIN | 
| 4lar | 1WE | Mus musculus | SINGLE HEAVY CHAIN VARIABLE FRAGMENT;SINGLE LIGHT CHAIN VARIABLE FRAGMENT | 
| 4lax | FK5 | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP4 | 
| 4lb0 | ACT | Agrobacterium vitis | UNCHARACTERIZED PROTEIN | 
| 4lb2 | DM5 | Homo sapiens | SERUM ALBUMIN | 
| 4lb9 | EVP | Homo sapiens | SERUM ALBUMIN | 
| 4lbg | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4lbx | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4lc4 | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4lca | ADN | Rhizobium etli | PROBABLE SUGAR KINASE PROTEIN | 
| 4ldo | ALE | Escherichia virus T4;Homo sapiens | LYSOZYME, BETA-2 ADRENERGIC RECEPTOR | 
| 4lf7 | PAR | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S10;RIBOSOMAL PROTEIN S9 | 
| 4lf8 | PAR | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S10;RIBOSOMAL PROTEIN S9 | 
| 4lg1 | SAM | Homo sapiens | PROTEIN-LYSINE METHYLTRANSFERASE METTL21D | 
| 4lhm | AZZ | Escherichia coli | THYMIDINE PHOSPHORYLASE | 
| 4lj0 | ACT | Chaetomium thermophilum | NAB2 | 
| 4ll3 | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 4lmn | EUI | Homo sapiens | DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEINKINASE KINASE 1 | 
| 4lnw | T3 | Homo sapiens | THYROID HORMONE RECEPTOR ALPHA | 
| 4lnx | T3 | Homo sapiens | THYROID HORMONE RECEPTOR ALPHA | 
| 4lnx | T44 | Homo sapiens | THYROID HORMONE RECEPTOR ALPHA | 
| 4lrh | FOL | Homo sapiens | FOLATE RECEPTOR ALPHA | 
| 4ls7 | 1X9 | Bacillus subtilis | 3-OXOACYL-[ACYL-CARRIER-PROTEIN] SYNTHASE 2 | 
| 4ltw | 486 | - | ANCESTRAL STEROID RECEPTOR 2 | 
| 4ltw | STR | - | ANCESTRAL STEROID RECEPTOR 2 | 
| 4lu3 | AZM | Homo sapiens | CARBONIC ANHYDRASE 14 | 
| 4luf | ACT | Ovis aries | SERUM ALBUMIN | 
| 4luh | ACT | Ovis aries | SERUM ALBUMIN | 
| 4luw | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4lux | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4lv9 | 20J | Homo sapiens | NICOTINAMIDE PHOSPHORIBOSYLTRANSFERASE | 
| 4lvc | ADN | Bradyrhizobium elkanii | S-ADENOSYL-L-HOMOCYSTEINE HYDROLASE (SAHASE) | 
| 4lxz | SHH | Homo sapiens | HISTONE DEACETYLASE 2 | 
| 4lzr | LOC | Homo sapiens | BROMODOMAIN-CONTAINING PROTEIN 4 | 
| 4m11 | MXM | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 4m2r | BZ1 | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4m2u | ETS | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4m2v | BZ1 | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4m2w | ETS | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4m2x | TMQ | Mycobacterium tuberculosis | DIHYDROFOLATE REDUCTASE | 
| 4m48 | 21B | Drosophila melanogaster | TRANSPORTER | 
| 4m51 | BEZ | Nitratiruptor sp. SB155-2 | AMIDOHYDROLASE FAMILY PROTEIN | 
| 4m5m | DX4 | Escherichia coli | 2-AMINO-4-HYDROXY-6-HYDROXYMETHYLDIHYDROPTERIDINE PYROPHOSPHOKINASE | 
| 4m6k | FOL | Homo sapiens | DIHYDROFOLATE REDUCTASE | 
| 4m6t | SAM | Homo sapiens | RNA POLYMERASE II-ASSOCIATED FACTOR 1HOMOLOG, LINKER, RNA POLYMERASE-ASSOCIATEDPROTEIN LEO1 | 
| 4m7k | ACT | Homo sapiens;Mus musculus | 10H10 HEAVY CHAIN | 
| 4m7t | SAM | Bacillus circulans | BTRN | 
| 4m83 | ERY | Streptomyces antibioticus | OLEANDOMYCIN GLYCOSYLTRANSFERASE | 
| 4m93 | ACT | Mus musculus | S25-26 FAB (IGG1K) HEAVY CHAIN | 
| 4m93 | ACT | Mus musculus | S25-26 FAB (IGG1K) HEAVY CHAIN;S25-26 FAB (IGG1K) LIGHT CHAIN | 
| 4ma3 | ACT | Homo sapiens;Oryctolagus cuniculus | C2095 HEAVY CHAIN;C2095 LIGHT CHAIN | 
| 4ma7 | P2Z | Mus musculus | MAJOR PRION PROTEIN | 
| 4ma8 | Z80 | Mus musculus | MAJOR PRION PROTEIN | 
| 4mbs | MRV | Clostridium pasteurianum;Homo sapiens | CHIMERA PROTEIN OF C-C CHEMOKINE RECEPTORTYPE 5 AND RUBREDOXIN | 
| 4mda | RLT | Drosophila mauritiana | MARINER MOS1 TRANSPOSASE | 
| 4mdb | RLT | Drosophila mauritiana | MARINER MOS1 TRANSPOSASE | 
| 4mf6 | BEZ | Paraburkholderia graminis | GLUTATHIONE S-TRANSFERASE DOMAIN | 
| 4mfl | GCS | Actinoplanes teichomyceticus | PUTATIVE UNCHARACTERIZED PROTEIN TCP24;TEICOPLANIN PSEUDOAGLYCONE | 
| 4mfp | GCS | Actinoplanes teichomyceticus | PUTATIVE UNCHARACTERIZED PROTEIN TCP24;TEICOPLANIN PSEUDOAGLYCONE | 
| 4mfq | GCS | Actinoplanes teichomyceticus | PUTATIVE UNCHARACTERIZED PROTEIN TCP24;TEICOPLANIN PSEUDOAGLYCONE | 
| 4mgh | ACT | Salmonella enterica | PHOSPHORIBOSYLFORMYLGLYCINAMIDINE SYNTHASE | 
| 4mi4 | SPM | Vibrio cholerae | SPERMIDINE N1-ACETYLTRANSFERASE | 
| 4mj8 | SPM | Vibrio cholerae | SPERMIDINE N1-ACETYLTRANSFERASE | 
| 4mjq | 27R | Escherichia coli | DNA POLYMERASE III SUBUNIT BETA | 
| 4mjr | 0LA | Escherichia coli | DNA POLYMERASE III SUBUNIT BETA | 
| 4mjw | ACT | Arthrobacter globiformis | CHOLINE OXIDASE | 
| 4mk4 | CHD | Homo sapiens | FERROCHELATASE, MITOCHONDRIAL | 
| 4mkc | 4MK | Homo sapiens | ALK TYROSINE KINASE RECEPTOR | 
| 4mm4 | 8PR | Aquifex aeolicus | TRANSPORTER | 
| 4mm5 | SRE | Aquifex aeolicus | TRANSPORTER | 
| 4mm6 | 29E | Aquifex aeolicus | TRANSPORTER | 
| 4mm7 | 29J | Aquifex aeolicus | TRANSPORTER | 
| 4mm8 | RFX | Aquifex aeolicus | TRANSPORTER | 
| 4mm9 | FVX | Aquifex aeolicus | TRANSPORTER | 
| 4mma | CXX | Aquifex aeolicus | TRANSPORTER | 
| 4mmb | SRE | Aquifex aeolicus | TRANSPORTER | 
| 4mmc | 29J | Aquifex aeolicus | TRANSPORTER | 
| 4mmd | 29E | Aquifex aeolicus | TRANSPORTER | 
| 4mme | 29Q | Aquifex aeolicus | TRANSPORTER | 
| 4mmf | 29Q | Aquifex aeolicus | TRANSPORTER | 
| 4ms4 | 2C0 | Homo sapiens | GAMMA-AMINOBUTYRIC ACID TYPE B RECEPTORSUBUNIT 1 | 
| 4mub | OAQ | Schistosoma mansoni | SULFOTRANSFERASE | 
| 4mv7 | PPF | Haemophilus influenzae | BIOTIN CARBOXYLASE | 
| 4mwr | ZMR | Influenza A virus | NEURAMINIDASE | 
| 4mwv | BCZ | Influenza A virus | NEURAMINIDASE | 
| 4mwx | ZMR | Influenza A virus | NEURAMINIDASE | 
| 4mwz | CQA | Plasmodium vivax | PHOSPHOETHANOLAMINE N-METHYLTRANSFERASE,PUTATIVE | 
| 4mwz | SAM | Plasmodium vivax | PHOSPHOETHANOLAMINE N-METHYLTRANSFERASE,PUTATIVE | 
| 4mx0 | BCZ | Influenza A virus | NEURAMINIDASE | 
| 4mxo | DB8 | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC | 
| 4mxx | DB8 | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC | 
| 4mxy | DB8 | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC | 
| 4mxz | DB8 | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC | 
| 4n09 | ADN | Trypanosoma brucei | ADENOSINE KINASE | 
| 4n16 | CHD | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4n48 | SAM | Homo sapiens | CAP-SPECIFIC MRNA(NUCLEOSIDE-2'-O-)-METHYLTRANSFERASE 1 | 
| 4n49 | SAM | Homo sapiens | CAP-SPECIFIC MRNA(NUCLEOSIDE-2'-O-)-METHYLTRANSFERASE 1 | 
| 4n6p | JMS | Bos taurus | LACTOTRANSFERRIN | 
| 4n9k | CED | Bacillus licheniformis | BETA-LACTAMASE | 
| 4n9u | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4nc3 | ERM | Escherichia coli;Homo sapiens | CHIMERA PROTEIN OF HUMAN 5-HYDROXYTRYPTAMINERECEPTOR 2B AND E. COLI SOLUBLE CYTOCHROMEB562 | 
| 4ndn | SAM | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 4ned | PFN | Bos taurus | LACTOTRANSFERRIN | 
| 4ng6 | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4njg | SAM | Burkholderia multivorans | 7-CARBOXY-7-DEAZAGUANINE SYNTHASE | 
| 4njh | SAM | Burkholderia multivorans | 7-CARBOXY-7-DEAZAGUANINE SYNTHASE | 
| 4nji | SAM | Burkholderia multivorans | 7-CARBOXY-7-DEAZAGUANINE SYNTHASE | 
| 4njj | SAM | Burkholderia multivorans | 7-CARBOXY-7-DEAZAGUANINE SYNTHASE | 
| 4njk | SAM | Burkholderia multivorans | 7-CARBOXY-7-DEAZAGUANINE SYNTHASE | 
| 4njt | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 4nju | TPV | Human immunodeficiency virus 1 | PROTEASE | 
| 4njv | RIT | Human immunodeficiency virus 1 | PROTEASE | 
| 4nke | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4nkf | 210 | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4nkv | AER | Homo sapiens | STEROID 17-ALPHA-HYDROXYLASE/17,20 LYASE | 
| 4nkx | STR | Homo sapiens | STEROID 17-ALPHA-HYDROXYLASE/17,20 LYASE | 
| 4nmy | VIB | Clostridioides difficile | ABC-TYPE TRANSPORT SYSTEM, EXTRACELLULARSOLUTE-BINDING PROTEIN | 
| 4nnr | FK5 | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP2 | 
| 4nos | H4B | Homo sapiens | INDUCIBLE NITRIC OXIDE SYNTHASE | 
| 4npt | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 4nqa | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 4nsb | AIN | Bubalus bubalis | CHITINASE-3-LIKE PROTEIN 1 | 
| 4ntx | AMR | Gallus gallus;Micrurus tener | ACID-SENSING ION CHANNEL 1;BASIC PHOSPHOLIPASE A2 HOMOLOG TX-BETA | 
| 4nua | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4nx6 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4nx7 | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4nxn | SRY | Thermus thermophilus | 16S RRNA;RIBOSOMAL PROTEIN S12 | 
| 4o0o | URF | Momordica balsamina | RRNA N-GLYCOSIDASE | 
| 4o0s | ADN | Homo sapiens | AURORA KINASE A | 
| 4o0u | ADN | Homo sapiens | AURORA KINASE A | 
| 4o0w | ADN | Homo sapiens | AURORA KINASE A | 
| 4o1e | C2F | Desulfitobacterium hafniense | DIHYDROPTEROATE SYNTHASE DHPS | 
| 4o1z | MXM | Ovis aries | PROSTAGLANDIN G/H SYNTHASE 1 | 
| 4o2b | LOC | Bos taurus | TUBULIN ALPHA-1B CHAIN;TUBULIN BETA-2B CHAIN | 
| 4o33 | TZN | Homo sapiens | PHOSPHOGLYCERATE KINASE 1 | 
| 4o3f | TZN | Mus musculus | PHOSPHOGLYCERATE KINASE 1 | 
| 4o4d | ACT | Entamoeba histolytica | INOSITOL HEXAKISPHOSPHATE KINASE | 
| 4o5f | PAU | Burkholderia thailandensis | TYPE III PANTOTHENATE KINASE | 
| 4o79 | ASC | Arabidopsis thaliana | PROBABLE TRANSMEMBRANE ASCORBATEFERRIREDUCTASE 2 | 
| 4o7g | ASC | Arabidopsis thaliana | PROBABLE TRANSMEMBRANE ASCORBATEFERRIREDUCTASE 2 | 
| 4o8f | BRL | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 4o8j | ADN | Pyrococcus horikoshii | RNA 3'-TERMINAL PHOSPHATE CYCLASE | 
| 4o8z | BBI | Homo sapiens | NAD-DEPENDENT PROTEIN DEACETYLASE SIRTUIN-3,MITOCHONDRIAL | 
| 4oad | CLM | Pseudomonas aeruginosa | GNAT SUPERFAMILY ACETYLTRANSFERASE PA4794 | 
| 4oae | CLM | Pseudomonas aeruginosa | GNAT SUPERFAMILY ACETYLTRANSFERASE PA4794 | 
| 4obw | SAM | Saccharomyces cerevisiae | 2-METHOXY-6-POLYPRENYL-1,4-BENZOQUINOLMETHYLASE, MITOCHONDRIAL | 
| 4odj | SAM | Cryptosporidium hominis | S-ADENOSYLMETHIONINE SYNTHASE | 
| 4odo | FK5 | Thermus thermophilus | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE SLYD | 
| 4odr | FK5 | Homo sapiens;Thermus thermophilus | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE SLYD,PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP1ACHIMERA | 
| 4oes | EDT | Brucella suis | NIKA PROTEIN | 
| 4ogr | ADN | Homo sapiens | CYCLIN-DEPENDENT KINASE 9 | 
| 4ogu | 210 | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4oj4 | DIF | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 4ojb | 198 | Homo sapiens | ANDROGEN RECEPTOR | 
| 4ok1 | 198 | Homo sapiens | ANDROGEN RECEPTOR | 
| 4okb | 198 | Homo sapiens | ANDROGEN RECEPTOR | 
| 4okn | KAN | Homo sapiens | L-LACTATE DEHYDROGENASE A CHAIN | 
| 4okt | 198 | Homo sapiens | ANDROGEN RECEPTOR | 
| 4okw | 198 | Homo sapiens | ANDROGEN RECEPTOR | 
| 4okx | 198 | Homo sapiens | ANDROGEN RECEPTOR | 
| 4ola | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4olb | TRP | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4olf | HFG | Plasmodium falciparum | PROLINE--TRNA LIGASE | 
| 4olm | 198 | Homo sapiens | ANDROGEN RECEPTOR | 
| 4olt | GCS | Pseudomonas sp. LL2(2010) | CHITOSANASE | 
| 4omw | TE4 | Capra hircus | BETA-LACTOGLOBULIN | 
| 4oqr | 2UO | Amycolatopsis orientalis | CYP105AS1 | 
| 4or0 | NPS | Bos taurus | SERUM ALBUMIN | 
| 4ot2 | ACT | Equus caballus | SERUM ALBUMIN | 
| 4ot2 | NPS | Equus caballus | SERUM ALBUMIN | 
| 4oti | MI1 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE N1 | 
| 4otw | DB8 | Homo sapiens | RECEPTOR TYROSINE-PROTEIN KINASE ERBB-3 | 
| 4oty | LUR | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 4ou1 | BEZ | Saccharolobus solfataricus | RETRO-ALDOLASE, DESIGN RA114 | 
| 4p0v | ZOL | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4p0w | ZOL | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4p3q | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4p3r | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4p65 | IPH | Homo sapiens | INSULIN | 
| 4p66 | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4p68 | MTX | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4p6s | DAH | Bacillus megaterium | TYROSINASE | 
| 4p6v | RBF | Vibrio cholerae | NA(+)-TRANSLOCATING NADH-QUINONE REDUCTASESUBUNIT B;NA(+)-TRANSLOCATING NADH-QUINONE REDUCTASESUBUNIT E | 
| 4p6x | HCY | Homo sapiens | GLUCOCORTICOID RECEPTOR | 
| 4p7n | GCS | Escherichia coli | POLY-BETA-1,6-N-ACETYL-D-GLUCOSAMINEN-DEACETYLASE | 
| 4pae | NIZ | Synechococcus elongatus | CATALASE-PEROXIDASE | 
| 4pah | LNR | Homo sapiens | PHENYLALANINE HYDROXYLASE | 
| 4pb1 | RBV | Vibrio cholerae | NUPC FAMILY PROTEIN | 
| 4pbh | BEZ | Ruegeria pomeroyi | TRAP DICARBOXYLATE TRANSPORTER, DCTP SUBUNIT,PUTATIVE | 
| 4pcl | SAM | Anaplasma phagocytophilum | O-METHYLTRANSFERASE FAMILY PROTEIN | 
| 4pcu | SAM | Homo sapiens | CYSTATHIONINE BETA-SYNTHASE | 
| 4pd4 | AOQ | Saccharomyces cerevisiae | CYTOCHROME B | 
| 4pd5 | GEO | Vibrio cholerae | NUPC FAMILY PROTEIN | 
| 4pd9 | ADN | Vibrio cholerae | NUPC FAMILY PROTEIN | 
| 4pe5 | QEL | Rattus norvegicus | GLUTAMATE RECEPTOR IONOTROPIC, NMDA 1;GLUTAMATE RECEPTOR IONOTROPIC, NMDA 2B | 
| 4pev | ADN | Aeropyrum pernix | MEMBRANE LIPOPROTEIN FAMILY PROTEIN | 
| 4pfj | ADN | Homo sapiens | ADENOSYLHOMOCYSTEINASE | 
| 4pgf | ADN | Homo sapiens | ADENOSYLHOMOCYSTEINASE | 
| 4pgh | SAM | Sorghum bicolor | CAFFEIC ACID O-METHYLTRANSFERASE | 
| 4ph9 | IBP | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 4pl1 | SAM | Escherichia coli | DUAL-SPECIFICITY RNA METHYLTRANSFERASE RLMN | 
| 4pm5 | CE3 | Klebsiella pneumoniae | BETA-LACTAMASE CTX-M-14 | 
| 4pm7 | CE3 | Klebsiella pneumoniae | BETA-LACTAMASE CTX-M-14 | 
| 4pm9 | CE3 | Klebsiella pneumoniae | BETA-LACTAMASE CTX-M-14 | 
| 4po0 | NPS | Oryctolagus cuniculus | SERUM ALBUMIN | 
| 4poo | SAM | Bacillus subtilis | PUTATIVE RNA METHYLASE | 
| 4pqa | X8Z | Neisseria meningitidis | SUCCINYL-DIAMINOPIMELATE DESUCCINYLASE | 
| 4pss | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4pst | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4psy | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4pth | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4ptj | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4puo | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE, P66 SUBUNIT | 
| 4pwd | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE, P66 SUBUNIT | 
| 4pwj | 30Z | Homo sapiens | TRANSTHYRETIN | 
| 4pxm | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 4pxx | CHD | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 4pyl | TCW | Rattus norvegicus | CATECHOL O-METHYLTRANSFERASE | 
| 4q0b | NVP | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE, P66 SUBUNIT | 
| 4q0d | MTX | Cryptosporidium hominis | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 4q15 | HFG | Plasmodium falciparum | PROLINE--TRNA LIGASE | 
| 4q1w | 017 | Human immunodeficiency virus 1 | ASPARTYL PROTEASE | 
| 4q1x | 017 | Human immunodeficiency virus 1 | ASPARTYL PROTEASE | 
| 4q1y | 017 | Human immunodeficiency virus 1 | ASPARTYL PROTEASE | 
| 4q23 | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4q36 | GCS | Actinoplanes teichomyceticus | PUTATIVE UNCHARACTERIZED PROTEIN TCP24 | 
| 4q56 | ACT | Helix aspersa | HELIX ASPERSA AGGLUTININ (HAA) | 
| 4q5m | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 4qa0 | SHH | Homo sapiens | HISTONE DEACETYLASE 8 | 
| 4qa2 | SHH | Homo sapiens | HISTONE DEACETYLASE 8 | 
| 4qb9 | PAR | Mycolicibacterium smegmatis | ENHANCED INTRACELLULAR SURVIVAL PROTEIN | 
| 4qc6 | KAN | Staphylococcus warneri | BIFUNCTIONAL AAC/APH | 
| 4qck | ASD | Mycobacterium tuberculosis | 3-KETOSTEROID-9-ALPHA-MONOOXYGENASE OXYGENASESUBUNIT | 
| 4qd3 | 5AE | Pseudomonas aeruginosa | PEPTIDYL-TRNA HYDROLASE | 
| 4qdc | ASD | Rhodococcus rhodochrous | 3-KETOSTEROID 9ALPHA-HYDROXYLASE OXYGENASE | 
| 4qdj | SAM | Synechocystis sp. PCC 6803 | MAGNESIUM-PROTOPORPHYRIN O-METHYLTRANSFERASE | 
| 4qe6 | JN3 | Homo sapiens | BILE ACID RECEPTOR | 
| 4qgi | ROC | Human immunodeficiency virus 1 | PROTEASE | 
| 4qi9 | MTX | Yersinia pestis | DIHYDROFOLATE REDUCTASE | 
| 4qkn | JMS | Homo sapiens | ALPHA-KETOGLUTARATE-DEPENDENT DIOXYGENASE FTO | 
| 4qle | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4qlf | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4qlg | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4qmn | DB8 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE 24 | 
| 4qms | 1N1 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE 24 | 
| 4qmz | B49 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE 24 | 
| 4qn9 | DXC | Homo sapiens | N-ACYL-PHOSPHATIDYLETHANOLAMINE-HYDROLYZINGPHOSPHOLIPASE D | 
| 4qog | ML1 | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 4qoi | ML1 | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 4qop | HQE | Bacillus pumilus | CATALASE | 
| 4qrc | 0LI | Homo sapiens | FIBROBLAST GROWTH FACTOR RECEPTOR 4 | 
| 4qt2 | RAP | Plasmodium falciparum | FK506-BINDING PROTEIN (FKBP)-TYPEPEPTIDYL-PROPYL ISOMERASE | 
| 4qt3 | RAP | Plasmodium falciparum | FK506-BINDING PROTEIN (FKBP)-TYPEPEPTIDYL-PROPYL ISOMERASE | 
| 4qtu | SAM | Saccharomyces cerevisiae | PUTATIVE METHYLTRANSFERASE BUD23 | 
| 4qvl | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qvl | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qvl | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qvm | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qvm | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qvm | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qvn | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qvn | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qvn | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qvp | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qvp | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qvp | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qvq | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qvq | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qvq | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qvv | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qvv | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qvv | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qvw | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qvw | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qvw | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qvy | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qvy | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qvy | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qw0 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qw0 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qw0 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5 | 
| 4qw1 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qw1 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qw1 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qw3 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qw3 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qw3 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qwp | GCS | Pseudomonas sp. A-01 | CHITOSANASE | 
| 4qwu | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 4qwu | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 4qwu | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 4qyn | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 2 | 
| 4qyq | 3CJ | Capra hircus | LACTOPEROXIDASE | 
| 4qzt | ACT | Homo sapiens | RETINOL-BINDING PROTEIN 2 | 
| 4qzt | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 2 | 
| 4qzu | ACT | Homo sapiens | RETINOL-BINDING PROTEIN 2 | 
| 4qzu | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 2 | 
| 4r1z | AER | Danio rerio | CYP17A1 PROTEIN | 
| 4r20 | AER | Danio rerio | CYTOCHROME P450 FAMILY 17 POLYPEPTIDE 2 | 
| 4r21 | STR | Danio rerio | CYTOCHROME P450 FAMILY 17 POLYPEPTIDE 2 | 
| 4r29 | SAM | Escherichia coli | UNCHARACTERIZED PROTEIN | 
| 4r38 | RBF | Erythrobacter litoralis | BLUE-LIGHT-ACTIVATED HISTIDINE KINASE 2 | 
| 4r3a | RBF | Erythrobacter litoralis | BLUE-LIGHT-ACTIVATED HISTIDINE KINASE 2 | 
| 4r7i | STI | Homo sapiens | MACROPHAGE COLONY-STIMULATING FACTOR 1RECEPTOR | 
| 4r7l | SHH | Homo sapiens | LEUKOTRIENE A-4 HYDROLASE | 
| 4r82 | ACT | Streptomyces globisporus | OXIDOREDUCTASE | 
| 4r87 | SPM | Vibrio cholerae | SPERMIDINE N1-ACETYLTRANSFERASE | 
| 4r88 | 1LD | Klebsiella pneumoniae | CYTOSINE DEAMINASE | 
| 4rdx | HIS | Thermus thermophilus | HISTIDINE--TRNA LIGASE | 
| 4ret | DGX | Sus scrofa | SODIUM/POTASSIUM-TRANSPORTING ATPASE SUBUNITALPHA-1 | 
| 4rfq | SAM | Homo sapiens | HISTIDINE PROTEIN METHYLTRANSFERASE 1 HOMOLOG | 
| 4rgc | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4rjd | TFP | Rattus norvegicus | CALMODULIN | 
| 4rku | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1;PHOTOSYSTEM I REACTION CENTER SUBUNIT IX | 
| 4rku | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 4rmj | NCA | Homo sapiens | NAD-DEPENDENT PROTEIN DEACETYLASE SIRTUIN-2 | 
| 4rn6 | 15U | Homo sapiens | THROMBIN HEAVY CHAIN | 
| 4rp8 | ASC | Escherichia coli | ASCORBATE-SPECIFIC PERMEASE IIC COMPONENTULAA | 
| 4rp9 | ASC | Escherichia coli | ASCORBATE-SPECIFIC PERMEASE IIC COMPONENTULAA | 
| 4rrw | LUR | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 4rrx | LUR | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 4rrz | LUR | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 4rs0 | IBP | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 4rtb | SAM | Carboxydothermus hydrogenoformans | HYDG PROTEIN | 
| 4rtm | SAM | Escherichia coli | DNA ADENINE METHYLASE | 
| 4rtp | SAM | Escherichia coli | DNA ADENINE METHYLASE | 
| 4rtr | SAM | Escherichia coli | DNA ADENINE METHYLASE | 
| 4rts | SAM | Escherichia coli | DNA ADENINE METHYLASE | 
| 4ruj | VDX | Danio rerio | VITAMIN D3 RECEPTOR A | 
| 4rv6 | RPB | Homo sapiens | POLY [ADP-RIBOSE] POLYMERASE 1 | 
| 4rvd | ACT | Streptomyces argillaceus | D-MYCAROSE 3-C-METHYLTRANSFERASE | 
| 4rvd | SAM | Streptomyces argillaceus | D-MYCAROSE 3-C-METHYLTRANSFERASE | 
| 4rvg | ACT | Streptomyces argillaceus | D-MYCAROSE 3-C-METHYLTRANSFERASE | 
| 4rvg | SAM | Streptomyces argillaceus | D-MYCAROSE 3-C-METHYLTRANSFERASE | 
| 4rvj | 478 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 4rxd | RIS | Trypanosoma brucei | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 4rya | ACT | Agrobacterium vitis | ABC TRANSPORTER SUBSTRATE BINDING PROTEIN(SORBITOL) | 
| 4rya | MTL | Agrobacterium vitis | ABC TRANSPORTER SUBSTRATE BINDING PROTEIN(SORBITOL) | 
| 4rz7 | 1E8 | Plasmodium vivax | CGMP-DEPENDENT PROTEIN KINASE, PUTATIVE | 
| 4rzv | 032 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE B-RAF | 
| 4s0v | SUV | Homo sapiens;Pyrococcus abyssi | HUMAN OREXIN RECEPTOR TYPE 2 FUSION PROTEINTO P. ABYSII GLYCOGEN SYNTHASE | 
| 4s2v | ACT | Escherichia coli | RNA PYROPHOSPHOHYDROLASE | 
| 4tns | REA | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASENIMA-INTERACTING 1 | 
| 4tvt | ASC | Thaumatococcus daniellii | THAUMATIN-1 | 
| 4twd | 377 | Dickeya chrysanthemi | CYS-LOOP LIGAND-GATED ION CHANNEL | 
| 4twl | ASC | Dioscorea japonica | DIOSCORIN 5 | 
| 4twp | AXI | Homo sapiens | TYROSINE-PROTEIN KINASE ABL1 | 
| 4txn | URF | Schistosoma mansoni | URIDINE PHOSPHORYLASE | 
| 4tyj | 0LI | Homo sapiens | FIBROBLAST GROWTH FACTOR RECEPTOR 4 | 
| 4tz4 | LVY | Homo sapiens | PROTEIN CEREBLON | 
| 4tzc | EF2 | Mus musculus | PROTEIN CEREBLON | 
| 4tzu | Y70 | Mus musculus | PROTEIN CEREBLON | 
| 4u0i | 0LI | Homo sapiens | MAST/STEM CELL GROWTH FACTOR RECEPTORKIT,MAST/STEM CELL GROWTH FACTOR RECEPTOR KIT | 
| 4u14 | 0HK | Escherichia virus T4;Rattus norvegicus | MUSCARINIC ACETYLCHOLINE RECEPTORM3,ENDOLYSIN,MUSCARINIC ACETYLCHOLINERECEPTOR M3 | 
| 4u15 | 0HK | Escherichia virus T4;Rattus norvegicus | MUSCARINIC ACETYLCHOLINE RECEPTORM3,LYSOZYME,MUSCARINIC ACETYLCHOLINE RECEPTORM3 | 
| 4u3e | ACT | Thermotoga maritima | RIBONUCLEOSIDE TRIPHOSPHATE REDUCTASE | 
| 4u5j | RXT | Gallus gallus | PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC | 
| 4u8v | MIY | Escherichia coli | MULTIDRUG EFFLUX PUMP SUBUNIT ACRB | 
| 4u8y | MIY | Escherichia coli | MULTIDRUG EFFLUX PUMP SUBUNIT ACRB | 
| 4u95 | MIY | Escherichia coli | MULTIDRUG EFFLUX PUMP SUBUNIT ACRB | 
| 4u9u | ACT | Vibrio cholerae | NA(+)-TRANSLOCATING NADH-QUINONE REDUCTASESUBUNIT F | 
| 4uac | ACR | [Eubacterium] rectale | CARBOHYDRATE ABC TRANSPORTERSUBSTRATE-BINDING PROTEIN, CUT1 FAMILY (TC3.A.1.1.-) | 
| 4ube | 2FA | Mycobacterium bovis | ADENOSINE KINASE | 
| 4ubp | HAE | Sporosarcina pasteurii | PROTEIN (UREASE (CHAIN C)) | 
| 4ubs | DIF | Streptomyces avermitilis | PENTALENIC ACID SYNTHASE | 
| 4uch | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4uci | ADN | Human metapneumovirus | RNA-DIRECTED RNA POLYMERASE L | 
| 4uci | SAM | Human metapneumovirus | RNA-DIRECTED RNA POLYMERASE L | 
| 4uck | SAM | Human metapneumovirus | RNA-DIRECTED RNA POLYMERASE L | 
| 4uda | DEX | Homo sapiens | MINERALOCORTICOID RECEPTOR | 
| 4udc | DEX | Homo sapiens | GLUCOCORTICOID RECEPTOR | 
| 4ug5 | H4B | Bacillus subtilis | NITRIC OXIDE SYNTHASE OXYGENASE | 
| 4ugl | H4B | Bacillus subtilis | NITRIC OXIDE SYNTHASE | 
| 4ugz | H4B | Rattus norvegicus | NEURONAL NITRIC OXIDE SYNTHASE | 
| 4uh0 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4uh1 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4uh2 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4uh3 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4uh4 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4uh5 | H4B | Homo sapiens | NEURONAL NITRIC OXIDE SYNTHASE | 
| 4uh6 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4uh7 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4uh8 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4uh9 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4uha | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4uhx | LZU | Homo sapiens | ALDEHYDE OXIDASE | 
| 4uhx | RTZ | Homo sapiens | ALDEHYDE OXIDASE | 
| 4uil | QI9 | Mus musculus | FAB 314.1 | 
| 4uin | QI9 | Mus musculus | FAB 314.3 | 
| 4umj | BFQ | Pseudomonas aeruginosa | GERANYLTRANSTRANSFERASE | 
| 4uov | AZM | Thermovibrio ammonificans | CARBONATE DEHYDRATASE | 
| 4upm | H4B | Rattus norvegicus | NEURONAL NITRIC OXIDE SYNTHASE | 
| 4upn | H4B | Rattus norvegicus | NEURONAL NITRIC OXIDE SYNTHASE | 
| 4upo | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4upp | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4upq | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4upr | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4ups | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4upt | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 4urn | NOV | Staphylococcus aureus | DNA TOPOISOMERASE IV, B SUBUNIT | 
| 4uro | NOV | Staphylococcus aureus | DNA GYRASE SUBUNIT B | 
| 4usw | ACT | Homo sapiens | ADENYLATE CYCLASE TYPE 10 | 
| 4uuu | SAM | Homo sapiens | CYSTATHIONINE BETA-SYNTHASE | 
| 4uw0 | SAM | Escherichia coli | WBDD | 
| 4ux6 | H4B | Mus musculus | NITRIC OXIDE SYNTHASE, INDUCIBLE | 
| 4uxq | 0LI | Homo sapiens | FIBROBLAST GROWTH FACTOR RECEPTOR 4 | 
| 4uy8 | TRP | Escherichia coli | TRYPTOPHANASE | 
| 4uym | VOR | Aspergillus fumigatus | 14-ALPHA STEROL DEMETHYLASE | 
| 4v01 | 0LI | Homo sapiens | FIBROBLAST GROWTH FACTOR RECEPTOR 1(FMS-RELATED TYROSINE KINASE 2, PFEIFFERSYNDROME), ISOFORM CRA_B | 
| 4v04 | 0LI | Homo sapiens | FIBROBLAST GROWTH FACTOR RECEPTOR 1(FMS-RELATED TYROSINE KINASE 2, PFEIFFERSYNDROME), ISOFORM CRA_B | 
| 4v1f | BQ1 | Mycolicibacterium phlei | F0F1 ATP SYNTHASE SUBUNIT C | 
| 4v20 | ACT | Aspergillus fumigatus | CELLOBIOHYDROLASE | 
| 4v2g | CTC | Escherichia coli | TETRACYCLINE REPRESSOR PROTEIN CLASS D | 
| 4v2o | CLQ | Homo sapiens | SAPOSIN-B | 
| 4v2y | EF2 | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 4v2z | Y70 | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 4v30 | LVY | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 4v32 | EF2 | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 4v3u | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4v3v | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4v3w | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4v3x | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4v3y | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4v3z | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 4v5f | FUA | - | - | 
| 4v5m | FUA | - | - | 
| 4v5n | FUA | - | - | 
| 4v7b | FUA | - | - | 
| 4v8u | FUA | - | - | 
| 4v9l | FUA | - | - | 
| 4v9m | FUA | - | - | 
| 4w29 | FUA | - | - | 
| 4w5n | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4w5o | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4w5q | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4w5r | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4w5t | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4w9n | CCS | Homo sapiens | ENOYL-[ACYL-CARRIER-PROTEIN] REDUCTASE | 
| 4wa5 | ZMR | Influenza A virus | NEURAMINIDASE | 
| 4wa9 | AXI | Homo sapiens | TYROSINE-PROTEIN KINASE ABL1 | 
| 4wan | ACT | Saccharomyces cerevisiae | BRANCHPOINT-BRIDGING PROTEIN | 
| 4wbo | ANW | Bos taurus | RHODOPSIN KINASE | 
| 4wcx | SAM | Thermoanaerobacter italicus | BIOTIN AND THIAMIN SYNTHESIS ASSOCIATED | 
| 4wev | SUZ | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER B10 | 
| 4wg0 | CHD | Homo sapiens | NUCLEAR RECEPTOR COACTIVATOR 2 | 
| 4wh5 | 3QB | Staphylococcus haemolyticus | LINCOSAMIDE RESISTANCE PROTEIN | 
| 4wkq | IRE | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 4wmz | TPF | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 4wnu | QDN | Homo sapiens | CYTOCHROME P450 2D6 | 
| 4wnv | QI9 | Homo sapiens | CYTOCHROME P450 2D6 | 
| 4wnw | RTZ | Homo sapiens | CYTOCHROME P450 2D6 | 
| 4woz | MN9 | Clostridioides difficile | N-ACETYLNEURAMINATE LYASE | 
| 4wq4 | ACT | Escherichia coli | TRNA N6-ADENOSINETHREONYLCARBAMOYLTRANSFERASE | 
| 4wq5 | ACT | Escherichia coli | TRNA N6-ADENOSINETHREONYLCARBAMOYLTRANSFERASE | 
| 4wqd | GAI | Allochromatium vinosum | THIOSULFATE DEHYDROGENASE | 
| 4wqf | FUA | - | - | 
| 4wql | KAN | Klebsiella pneumoniae | 2''-AMINOGLYCOSIDE NUCLEOTIDYLTRANSFERASE | 
| 4wry | URF | Mycobacterium tuberculosis | URACIL-DNA GLYCOSYLASE | 
| 4wrz | URF | Mycobacterium tuberculosis | URACIL-DNA GLYCOSYLASE | 
| 4ws0 | URF | Mycobacterium tuberculosis | URACIL-DNA GLYCOSYLASE | 
| 4ws1 | URF | Mycobacterium tuberculosis | URACIL-DNA GLYCOSYLASE | 
| 4wvd | IVM | Homo sapiens | BILE ACID RECEPTOR | 
| 4ww7 | ACT | Saccharomyces cerevisiae | EKC/KEOPS COMPLEX SUBUNIT BUD32 | 
| 4wzm | ACT | Foot-and-mouth disease virus | RNA DEPENDENT RNA POLYMERASE | 
| 4x1f | 3WF | Homo sapiens | NUCLEAR RECEPTOR SUBFAMILY 1 GROUP I MEMBER 2 | 
| 4x1g | 3WF | Homo sapiens | NUCLEAR RECEPTOR SUBFAMILY 1 GROUP I MEMBER 2 | 
| 4x1i | LOC | Ovis aries | TUBULIN ALPHA CHAIN;TUBULIN BETA CHAIN | 
| 4x1k | LOC | Ovis aries | TUBULIN ALPHA CHAIN;TUBULIN BETA CHAIN | 
| 4x1y | LOC | Ovis aries | TUBULIN ALPHA CHAIN;TUBULIN BETA CHAIN | 
| 4x20 | LOC | Ovis aries | TUBULIN ALPHA CHAIN;TUBULIN BETA CHAIN | 
| 4x30 | T44 | Homo sapiens | THYROXINE-BINDING GLOBULIN | 
| 4x3m | ADN | Thermus thermophilus | RNA 2'-O RIBOSE METHYLTRANSFERASE | 
| 4x3u | SVR | Mus musculus | CHROMOBOX PROTEIN HOMOLOG 7 | 
| 4x5f | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4x5g | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4x5h | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4x5i | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4x5j | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 4x5s | AZM | Sulfurihydrogenibium azorense | CARBONIC ANHYDRASE (CARBONATE DEHYDRATASE) | 
| 4x61 | SAM | Homo sapiens | PROTEIN ARGININE N-METHYLTRANSFERASE 5 | 
| 4xdq | BEZ | Mycolicibacterium thermoresistibile | GLYCOSIDE HYDROLASE FAMILY PROTEIN | 
| 4xdr | ADN | Treponema pallidum | FAD:PROTEIN FMN TRANSFERASE | 
| 4xdt | ACT | Treponema pallidum | FAD:PROTEIN FMN TRANSFERASE | 
| 4xe0 | 40L | Mus musculus | PHOSPHATIDYLINOSITOL 4,5-BISPHOSPHATE3-KINASE CATALYTIC SUBUNIT DELTA ISOFORM | 
| 4xe3 | CL6 | Streptomyces antibioticus | CYTOCHROME P-450 | 
| 4xe5 | OBN | Bos taurus | SODIUM/POTASSIUM-TRANSPORTING ATPASE SUBUNITALPHA-1 | 
| 4xey | 1N1 | Homo sapiens | TYROSINE-PROTEIN KINASE ABL1 | 
| 4xi3 | 29S | Homo sapiens | ESTROGEN RECEPTOR | 
| 4xia | SOR | Arthrobacter sp. NRRL B3728 | D-XYLOSE ISOMERASE | 
| 4xiw | AZM | Chlamydomonas reinhardtii | CARBONIC ANHYDRASE, ALPHA TYPE | 
| 4xj7 | ADN | Salmonella enterica | 5'/3'-NUCLEOTIDASE SURE | 
| 4xje | TOY | Pseudomonas aeruginosa | AADB | 
| 4xk8 | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 4xk8 | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 4xld | BRL | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 4xli | 1N1 | Mus musculus | NON-SPECIFIC PROTEIN-TYROSINE KINASE | 
| 4xmf | HSM | Rhodnius prolixus | NITROPHORIN-7 | 
| 4xnx | 41X | Drosophila melanogaster | TRANSPORTER | 
| 4xo7 | ASD | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2 | 
| 4xoy | DX4 | Rattus norvegicus | MITOGEN-ACTIVATED PROTEIN KINASE 1 | 
| 4xp1 | LDP | Drosophila melanogaster | DOPAMINE TRANSPORTER, ISOFORM B | 
| 4xp3 | DX4 | Rattus norvegicus | MITOGEN-ACTIVATED PROTEIN KINASE 1 | 
| 4xp4 | COC | Drosophila melanogaster | DOPAMINE TRANSPORTER | 
| 4xp6 | B40 | Drosophila melanogaster | TRANSPORTER | 
| 4xp9 | 1WE | Drosophila melanogaster | TRANSPORTER | 
| 4xpb | COC | Drosophila melanogaster | TRANSPORTER | 
| 4xqe | AG2 | Blastochloris viridis | HOMOSPERMIDINE SYNTHASE | 
| 4xqg | AG2 | Blastochloris viridis | HOMOSPERMIDINE SYNTHASE | 
| 4xr4 | AG2 | Blastochloris viridis | HOMOSPERMIDINE SYNTHASE | 
| 4xrg | AG2 | Blastochloris viridis | HOMOSPERMIDINE SYNTHASE | 
| 4xt7 | TOP | Mycobacterium tuberculosis | RV2671 | 
| 4xt8 | TMQ | Mycobacterium tuberculosis | RV2671 | 
| 4xta | DIF | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 4xuc | SAM | Homo sapiens | CATECHOL O-METHYLTRANSFERASE | 
| 4xud | SAM | Homo sapiens | CATECHOL O-METHYLTRANSFERASE | 
| 4xue | SAM | Homo sapiens | CATECHOL O-METHYLTRANSFERASE | 
| 4xum | IMN | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 4xv2 | P06 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE B-RAF | 
| 4xyz | ACT | Bos taurus | POLYUBIQUITIN-C | 
| 4xzk | AG2 | Vibrio splendidus | PUTATIVE NAD(+)--ARGININEADP-RIBOSYLTRANSFERASE VIS | 
| 4y03 | SAL | Homo sapiens | PROTEIN POLYBROMO-1 | 
| 4y0p | TE4 | Bos taurus | BETA-LACTOGLOBULIN | 
| 4y0q | PX9 | Bos taurus | BETA-LACTOGLOBULIN | 
| 4y0r | PX9 | Bos taurus | BETA-LACTOGLOBULIN | 
| 4y0s | PX9 | Capra hircus | BETA-LACTOGLOBULIN | 
| 4y1d | DVA | Human immunodeficiency virus 1;synthetic construct | CYCLIC HEXAPEPTIDE CYC[NDPOPPKID];INTEGRASE | 
| 4y28 | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1;PHOTOSYSTEM I REACTION CENTER SUBUNIT IX | 
| 4y28 | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 4y4d | CFF | Cryphonectria parasitica | ENDOTHIAPEPSIN | 
| 4y4j | LNR | Cryphonectria parasitica | ENDOTHIAPEPSIN | 
| 4y8w | STR | Homo sapiens | CYTOCHROME P450 21-HYDROXYLASE | 
| 4y9t | PA1 | Agrobacterium vitis | ABC TRANSPORTER, SOLUTE BINDING PROTEIN | 
| 4yb6 | HIS | Campylobacter jejuni | ATP PHOSPHORIBOSYLTRANSFERASE | 
| 4ybn | ACT | Mycolicibacterium smegmatis | FLAVIN-NUCLEOTIDE-BINDING PROTEIN | 
| 4ydq | HFG | Plasmodium falciparum | PROLINE--TRNA LIGASE | 
| 4yfb | PAC | Acidovorax sp. MR-S7 | PROTEIN RELATED TO PENICILLIN ACYLASE | 
| 4ygf | AZM | Helicobacter pylori | ALPHA-CARBONIC ANHYDRASE | 
| 4yha | MZM | Helicobacter pylori | ALPHA-CARBONIC ANHYDRASE | 
| 4yia | IMN | Homo sapiens | THYROXINE-BINDING GLOBULIN | 
| 4yji | TYL | bacterium CSBL00001 | ARYL ACYLAMIDASE | 
| 4ymg | SAM | Podospora anserina | PUTATIVE SAM-DEPENDENT O-METHYLTRANFERASE | 
| 4ynd | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 4ynm | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE ASH1L | 
| 4ynp | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE ASH1L | 
| 4yo9 | ACT | Tylonycteris bat coronavirus HKU4 | 3C-LIKE PROTEINASE | 
| 4yoa | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 4yp2 | NCA | Momordica charantia | RIBOSOME-INACTIVATING PROTEIN MOMORDIN I | 
| 4ypa | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE ASH1L | 
| 4ype | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE ASH1L | 
| 4ypm | BO2 | Meiothermus taiwanensis | LON PROTEASE | 
| 4ypu | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE ASH1L | 
| 4ysh | GLY | Geobacillus kaustophilus | GLYCINE OXIDASE | 
| 4yv5 | SVR | Bothrops moojeni | BASIC PHOSPHOLIPASE A2 HOMOLOG 2 | 
| 4yvg | SAM | Haemophilus influenzae | TRNA (GUANINE-N(1)-)-METHYLTRANSFERASE | 
| 4yvp | GBM | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C1 | 
| 4yvv | GBM | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 4yvx | GMR | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 4z2c | MFX | Escherichia coli;Streptococcus pneumoniae | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;SYMMETRIZED E-SITE DNA | 
| 4z2d | LFX | Escherichia coli;Streptococcus pneumoniae | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;SYMMETRIZED E-SITE DNA | 
| 4z2e | TR6 | Escherichia coli;Streptococcus pneumoniae | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;SYMMETRIZED E-SITE DNA | 
| 4z3o | MFX | Escherichia coli;Streptococcus pneumoniae | DNA TOPOISOMERASE 4 SUBUNIT B,PARE30-PARC55FUSED TOPO IV FROM S. PNEUMONIAE;E-SITE DNA | 
| 4z4c | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4z4d | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4z4e | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4z4f | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4z4g | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4z4h | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4z4i | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 4z53 | TR6 | Escherichia coli;Streptococcus pneumoniae | DNA TOPOISOMERASE 4 SUBUNIT B,DNATOPOISOMERASE 4 SUBUNIT A;E-SITE DNA | 
| 4z69 | DIF | Homo sapiens | SERUM ALBUMIN | 
| 4z7f | FOL | Enterococcus faecalis | FOLATE ECF TRANSPORTER | 
| 4z90 | 4LE | Dickeya dadantii | GAMMA-AMINOBUTYRIC-ACID RECEPTOR SUBUNITBETA-1 | 
| 4z91 | 4LE | Dickeya dadantii | GAMMA-AMINOBUTYRIC-ACID RECEPTOR SUBUNITBETA-1 | 
| 4zau | YY3 | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 4zbq | ACT | Equus caballus | SERUM ALBUMIN | 
| 4zbq | DIF | Equus caballus | SERUM ALBUMIN | 
| 4zbr | ACT | Equus caballus | SERUM ALBUMIN | 
| 4zbr | DIF | Equus caballus | SERUM ALBUMIN | 
| 4zbr | NPS | Equus caballus | SERUM ALBUMIN | 
| 4zdy | 1YN | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 4zdz | TPF | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 4ze0 | VOR | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 4ze1 | X2N | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 4ze2 | 1YN | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 4ze3 | TPF | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 4zf8 | MYT | Bacillus megaterium | BIFUNCTIONAL P-450/NADPH-P450 REDUCTASE | 
| 4zfc | GCZ | Homo sapiens | ALDO-KETO REDUCTASE FAMILY 1 MEMBER C3 | 
| 4zgf | BEZ | Bacteroides vulgatus | UNCHARACTERIZED PROTEIN | 
| 4zj8 | SUV | Homo sapiens;Pyrococcus abyssi | HUMAN OX1R FUSION PROTEIN TO P.ABYSIIGLYCOGEN SYNTHASE | 
| 4zjl | ERY | Escherichia coli | MULTIDRUG EFFLUX PUMP SUBUNIT ACRB | 
| 4zjo | ERY | Escherichia coli | MULTIDRUG EFFLUX PUMP SUBUNIT ACRB | 
| 4zjq | ERY | Escherichia coli | MULTIDRUG EFFLUX PUMP SUBUNIT ACRB | 
| 4zjz | BEZ | Rhodopseudomonas palustris | BENZOATE-COENZYME A LIGASE | 
| 4zme | ADN | Dictyostelium discoideum | MYOSIN HEAVY CHAIN KINASE A | 
| 4zn7 | DES | Homo sapiens | ESTROGEN RECEPTOR | 
| 4zo1 | T3 | Homo sapiens | THYROID HORMONE RECEPTOR BETA | 
| 4zow | CLM | Escherichia coli | MULTIDRUG TRANSPORTER MDFA | 
| 4zp0 | DXC | Escherichia coli | MULTIDRUG TRANSPORTER MDFA | 
| 4zph | PRL | Mus musculus | ARYL HYDROCARBON RECEPTOR NUCLEARTRANSLOCATOR;ENDOTHELIAL PAS DOMAIN-CONTAINING PROTEIN 1 | 
| 4zud | OLM | Escherichia coli;Homo sapiens | CHIMERA PROTEIN OF SOLUBLE CYTOCHROME B562AND TYPE-1 ANGIOTENSIN II RECEPTOR | 
| 4zvc | BEZ | Escherichia coli | DIGUANYLATE CYCLASE DOSC | 
| 4zvm | DM2 | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 4zxi | GLY | Acinetobacter baumannii | TYROCIDINE SYNTHETASE 3 | 
| 4zz8 | GCS | Paenibacillus fukuinensis | GLUCANASE/CHITOSANASE | 
| 4zzb | ACT | Gloeobacter violaceus | PROTON-GATED ION CHANNEL | 
| 4zzc | ACT | Gloeobacter violaceus | PROTON-GATED ION CHANNEL | 
| 4zzd | RBF | Lactococcus lactis | TRANSCRIPTIONAL REGULATOR, PADR-LIKE FAMILY | 
| 5a06 | SOR | Caulobacter vibrioides | ALDOSE-ALDOSE OXIDOREDUCTASE | 
| 5a1i | ADN | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 5a1i | SAM | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 5a1r | STR | Homo sapiens | CYTOCHROME P450 3A4 | 
| 5a5z | WJZ | Klebsiella pneumoniae | BETA-LACTAMASE NDM-1 | 
| 5a6i | TCW | Homo sapiens | TRANSTHYRETIN | 
| 5a7m | ACT | Trichoderma reesei | BETA-XYLOSIDASE | 
| 5aaa | VGH | Homo sapiens | ALK TYROSINE KINASE RECEPTOR | 
| 5aab | VGH | Homo sapiens | ALK TYROSINE KINASE RECEPTOR | 
| 5aac | VGH | Homo sapiens | ALK TYROSINE KINASE RECEPTOR | 
| 5acl | SAS | Homo sapiens | MCG | 
| 5ad4 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5ad5 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5ad6 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5ad7 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5ad8 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5ad9 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5ada | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5adb | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5adc | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5add | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5ade | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5adf | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5adg | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5adi | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5adj | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5adk | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5adl | H4B | Bos taurus | ENDOTHELIAL NITRIC OXIDE SYNTHASE | 
| 5adm | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5adn | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5agk | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5agl | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5agm | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5agn | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5ago | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5agp | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5ain | QMR | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 5ajq | DB8 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE 10 | 
| 5alb | TIQ | Homo sapiens | MEDI2452 HEAVY CHAIN;MEDI2452 LIGHT CHAIN | 
| 5alc | TIQ | Homo sapiens | ANTI-TICAGRELOR FAB 72, HEAVY CHAIN;ANTI-TICAGRELOR FAB 72, LIGHT CHAIN | 
| 5amh | EF2 | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 5ami | EF2 | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 5amj | EF2 | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 5amk | EF2 | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 5aox | ACT | Homo sapiens;synthetic construct | ALU JO CONSENSUS RNA;SIGNAL RECOGNITION PARTICLE 14 KDA PROTEIN | 
| 5aqf | ADN | Homo sapiens | HEAT SHOCK COGNATE 71 KDA PROTEIN | 
| 5aqy | ADN | Homo sapiens | HEAT SHOCK 70 KDA PROTEIN 1A | 
| 5arf | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 5arg | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 5axa | ADN | Mus musculus | ADENOSYLHOMOCYSTEINASE | 
| 5axd | RBV | Mus musculus | ADENOSYLHOMOCYSTEINASE | 
| 5aya | X8Z | Serratia marcescens | METALLO-BETA-LACTAMASE | 
| 5ayf | C7H | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SETD7 | 
| 5ayf | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SETD7 | 
| 5b1a | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5b1a | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5b1a | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5b1a | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5b1a | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5b1b | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5b1b | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5b1b | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5b1b | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5b1b | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5b2o | ACT | Francisella tularensis | CRISPR-ASSOCIATED ENDONUCLEASE CAS9 | 
| 5b2o | ACT | Francisella tularensis;synthetic construct | CRISPR-ASSOCIATED ENDONUCLEASE CAS9;GUIDE RNA | 
| 5b2p | ACT | Francisella tularensis | CRISPR-ASSOCIATED ENDONUCLEASE CAS9 | 
| 5b2p | ACT | Francisella tularensis;synthetic construct | CRISPR-ASSOCIATED ENDONUCLEASE CAS9;GUIDE RNA | 
| 5b2q | ACT | Francisella tularensis | CRISPR-ASSOCIATED ENDONUCLEASE CAS9 | 
| 5b2s | ACT | Streptococcus pyogenes | CRISPR-ASSOCIATED ENDONUCLEASE CAS9;GUIDE RNA | 
| 5b2t | ACT | Streptococcus pyogenes | CRISPR-ASSOCIATED ENDONUCLEASE CAS9;GUIDE RNA | 
| 5b3s | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5b3s | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5b3s | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5b3s | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5b3s | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5b3s | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5b6i | ADN | Streptomyces sp. MA37 | FLUORINASE | 
| 5b8h | PAU | Burkholderia cenocepacia | TYPE III PANTOTHENATE KINASE | 
| 5b8i | FK5 | Coccidioides immitis | CALCINEURIN SUBUNIT B, VARIANT;PEPTIDYL-PROLYL CIS-TRANS ISOMERASE;SERINE/THREONINE-PROTEIN PHOSPHATASE | 
| 5bmv | VLB | Bos taurus;Sus scrofa | TUBULIN ALPHA-1B CHAIN;TUBULIN BETA CHAIN | 
| 5boj | 4TX | Homo sapiens | TRANSTHYRETIN | 
| 5bph | ACT | Yersinia pestis | D-ALANINE--D-ALANINE LIGASE | 
| 5br1 | X6X | Agrobacterium vitis | ABC TRANSPORTER, BINDING PROTEIN | 
| 5bs8 | MFX | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER GGTCATGAATGACTATGCACGTAA | 
| 5bs8 | MFX | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER TTACGTGCATAGTCATTCATGACC | 
| 5bta | MFX | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER GGTCATGAATGACTATGCACGTAA | 
| 5bta | MFX | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER TTACGTGCATAGTCATTCATGACC | 
| 5btc | CPF | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER TTACGTGCATAGTCATTCATGACC | 
| 5btd | GFN | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER GGTCATGAATGACTATGCACGTAA | 
| 5btd | GFN | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER TTACGTGCATAGTCATTCATGACC | 
| 5btf | GFN | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER TTACGTGCATAGTCATTCATGACC | 
| 5btg | LFX | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER GGTCATGAATGACTATGCACGTAA | 
| 5btg | LFX | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER TTACGTGCATAGTCATTCATGACC | 
| 5bti | LFX | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER GGTCATGAATGACTATGCACGTAA | 
| 5bti | LFX | Mycobacterium tuberculosis;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B;DNA SUBSTRATE 24-MER TTACGTGCATAGTCATTCATGACC | 
| 5bvw | 1N1 | Homo sapiens | EPITHELIAL DISCOIDIN DOMAIN-CONTAININGRECEPTOR 1 | 
| 5bw4 | SAM | Catenulispora acidiphila | 16S RRNA(ADENINE(1408)-N(1))-METHYLTRANSFERASE | 
| 5bxn | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 5bxn | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 5bxn | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 5byj | OQR | Schistosoma mansoni | SULFOTRANSFERASE | 
| 5byk | OAQ | Schistosoma mansoni | SULFOTRANSFERASE | 
| 5c0o | SAM | Thermus thermophilus | TRNA (ADENINE(58)-N(1))-METHYLTRANSFERASETRMI | 
| 5c6o | 4YH | Bacillus halodurans | BH2163 PROTEIN | 
| 5c6p | 4YH | Neisseria gonorrhoeae | PROTEIN C | 
| 5c8i | MZM | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 5c8t | SAM | Severe acute respiratory syndrome-relatedcoronavirus | GUANINE-N7 METHYLTRANSFERASE | 
| 5cad | ACT | Solanum melongena | SM80.1 VICILIN | 
| 5ccl | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SMYD3 | 
| 5ccm | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SMYD3 | 
| 5cdn | EVP | Staphylococcus aureus;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B,DNA GYRASE SUBUNIT B | 
| 5cdp | EVP | Staphylococcus aureus;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B | 
| 5cdq | MFX | Staphylococcus aureus;synthetic construct | DNA GYRASE SUBUNIT A;DNA GYRASE SUBUNIT B,DNA GYRASE SUBUNIT B | 
| 5cf9 | NCA | Momordica charantia | RIBOSOME-INACTIVATING PROTEIN MOMORDIN I | 
| 5cfs | TOY | Pseudomonas aeruginosa | AAD(2''),GENTAMICIN2''-NUCLEOTIDYLTRANSFERASE,GENTAMICINRESISTANCE PROTEIN | 
| 5cft | 51G | Pseudomonas aeruginosa | AMINOGLYCOSIDE NUCLEOTIDYLTRANSFERASE (2')-IA | 
| 5cg5 | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 5cg6 | RIS | Homo sapiens | FARNESYL PYROPHOSPHATE SYNTHASE | 
| 5clt | ACR | Homo sapiens | 1,4-ALPHA-GLUCAN-BRANCHING ENZYME | 
| 5cp3 | YTZ | Mus musculus | HEAVY CHAIN OF ANTIGEN-BINDING FRAGMENT OFMONOCLONAL ANTIBODY OF 4C7;LIGHT CHAIN OF ANTIGEN-BINDING FRAGMENT OFMONOCLONAL ANTIBODY OF 4C7 | 
| 5cp4 | CAM | Pseudomonas putida | CYTOCHROME P450CAM | 
| 5cpr | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SUV420H1 | 
| 5cr1 | T44 | Homo sapiens | TRANSTHYRETIN | 
| 5csh | ACT | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 5csw | P06 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE B-RAF | 
| 5csy | ACR | Arabidopsis thaliana | 4-ALPHA-GLUCANOTRANSFERASE DPE1,CHLOROPLASTIC/AMYLOPLASTIC | 
| 5cu6 | ACT | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 5cvf | ACT | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 5cvt | ACT | Acetobacter aceti | N5-CARBOXYAMINOIMIDAZOLE RIBONUCLEOTIDEMUTASE | 
| 5cxv | 0HK | Escherichia virus T4;Homo sapiens | MUSCARINIC ACETYLCHOLINE RECEPTORM1,ENDOLYSIN,MUSCARINIC ACETYLCHOLINERECEPTOR M1 | 
| 5cym | T27 | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE, P51 SUBUNIT;HIV-1 REVERSE TRANSCRIPTASE, P66 SUBUNIT | 
| 5cyq | T27 | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE, P51 SUBUNIT;HIV-1 REVERSE TRANSCRIPTASE, P66 SUBUNIT | 
| 5cz7 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 5cz7 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 5czy | SAM | Legionella pneumophila | LEGIONELLA EFFECTOR LEGAS4 | 
| 5d0x | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 5d0x | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 5d0x | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 5d0y | FOL | Lactobacillus delbrueckii | CONSERVED HYPOTHETICAL MEMBRANE PROTEIN | 
| 5d4n | ACT | Thiomonas intermedia | NITROGEN REGULATORY PROTEIN P-II | 
| 5d4u | SAM | Methanocaldococcus jannaschii | UNCHARACTERIZED PROTEIN MJ0489 | 
| 5d75 | FK5 | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP3 | 
| 5d9w | ASC | Oryza sativa | DEHYDROASCORBATE REDUCTASE | 
| 5db5 | CYS | Escherichia coli | CYSTEINE DESULFURASE | 
| 5dby | ACT | Equus caballus | SERUM ALBUMIN | 
| 5dby | DIF | Equus caballus | SERUM ALBUMIN | 
| 5dby | NPS | Equus caballus | SERUM ALBUMIN | 
| 5dgr | GCS | Photobacterium profundum | PUTATIVE ENDOGLUCANASE-RELATED PROTEIN | 
| 5dl9 | ACT | Gallus gallus | LYSOZYME C | 
| 5dlv | 5D5 | Rattus norvegicus | ECTONUCLEOTIDEPYROPHOSPHATASE/PHOSPHODIESTERASE FAMILYMEMBER 2 | 
| 5dlw | 5D5 | Rattus norvegicus | ECTONUCLEOTIDEPYROPHOSPHATASE/PHOSPHODIESTERASE FAMILYMEMBER 2 | 
| 5dnu | BEZ | Striga hermonthica | SHKAI2IB | 
| 5dnv | BEZ | Striga hermonthica | SHKAI2IB | 
| 5dpd | SAM | Rickettsia prowazekii | PROTEIN LYSINE METHYLTRANSFERASE 1 | 
| 5dqf | CZE | Equus caballus | SERUM ALBUMIN | 
| 5dqf | LCR | Equus caballus | SERUM ALBUMIN | 
| 5dqy | BEZ | Homo sapiens | THIOREDOXIN | 
| 5dsg | 0HK | Escherichia virus T4;Homo sapiens | MUSCARINIC ACETYLCHOLINE RECEPTORM4,ENDOLYSIN,ENDOLYSIN,MUSCARINICACETYLCHOLINE RECEPTOR M4 | 
| 5dv4 | NMY | Homo sapiens | CCR4-NOT TRANSCRIPTION COMPLEX SUBUNIT 6-LIKE | 
| 5dwk | ACT | Escherichia coli | DIACYLGLYCEROL KINASE | 
| 5dx3 | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 5dxb | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 5dxe | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 5dxg | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 5dz2 | 212 | Streptomyces coelicolor | GERMACRADIENOL/GEOSMIN SYNTHASE | 
| 5dzk | BEZ | Mycobacterium tuberculosis;synthetic construct | ATP-DEPENDENT CLP PROTEASE PROTEOLYTICSUBUNIT 1;ATP-DEPENDENT CLP PROTEASE PROTEOLYTICSUBUNIT 2;BEZ-LEU-LEU | 
| 5dzk | BEZ | Mycobacterium tuberculosis;synthetic construct | ATP-DEPENDENT CLP PROTEASE PROTEOLYTICSUBUNIT 1;BEZ-LEU-LEU | 
| 5dzk | BEZ | Mycobacterium tuberculosis;synthetic construct | ATP-DEPENDENT CLP PROTEASE PROTEOLYTICSUBUNIT 2;BEZ-LEU-LEU | 
| 5e26 | PAU | Homo sapiens | PANTOTHENATE KINASE 2, MITOCHONDRIAL | 
| 5e2i | DME | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 5e3i | HIS | Acinetobacter baumannii | HISTIDINE--TRNA LIGASE | 
| 5e4d | BEZ | Davallia tyermannii | HYDROXYNITRILE LYASE | 
| 5e4j | DME | Tetronarce californica | ACETYLCHOLINESTERASE | 
| 5e5j | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 5e5k | 017 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 5e72 | SAM | Thermococcus kodakarensis | N2, N2-DIMETHYLGUANOSINE TRNAMETHYLTRANSFERASE | 
| 5e8q | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 5e9q | SAM | Dengue virus | GENOME POLYPROTEIN | 
| 5eaj | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 5eb3 | UEG | Pseudomonas aeruginosa | YFIR | 
| 5eb5 | 010 | Prunus dulcis | HNL ISOENZYME 5 | 
| 5ec8 | SAM | Dengue virus | GENOME POLYPROTEIN | 
| 5eck | ILE | Arabidopsis thaliana | JASMONIC ACID-AMIDO SYNTHETASE JAR1 | 
| 5ecl | ILE | Arabidopsis thaliana | JASMONIC ACID-AMIDO SYNTHETASE JAR1 | 
| 5ecm | LEU | Arabidopsis thaliana | JASMONIC ACID-AMIDO SYNTHETASE JAR1 | 
| 5ecn | LEU | Arabidopsis thaliana | JASMONIC ACID-AMIDO SYNTHETASE JAR1 | 
| 5eco | LEU | Arabidopsis thaliana | JASMONIC ACID-AMIDO SYNTHETASE JAR1 | 
| 5edl | VIB | Bacillus subtilis | PUTATIVE HMP/THIAMINE PERMEASE PROTEIN YKOE | 
| 5eei | SHH | Danio rerio | HDAC6 PROTEIN | 
| 5een | 5OG | Danio rerio | HDAC6 PROTEIN | 
| 5eeu | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5eev | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5eew | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5eex | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5eey | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5eez | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5ef0 | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5ef1 | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5ef2 | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5ef3 | TRP | Geobacillus stearothermophilus | TRANSCRIPTION ATTENUATION PROTEIN MTRB | 
| 5ef8 | LBH | Danio rerio | HDAC6 PROTEIN | 
| 5ehg | SAM | Dengue virus | RNA-DIRECTED RNA POLYMERASE NS5 | 
| 5ehi | SAM | Dengue virus | NS5 METHYLTRANSFERASE DENGUE VIRUS | 
| 5eif | SAM | Dengue virus | GENOME POLYPROTEIN | 
| 5eiw | SAM | Dengue virus | NS5 METHYLTRANSFERASE | 
| 5ekx | SAM | Dengue virus | NS5 METHYLTRANSFERASE | 
| 5eml | SAM | Homo sapiens | PROTEIN ARGININE N-METHYLTRANSFERASE 5 | 
| 5ent | MIY | Escherichia coli | MULTIDRUG EFFLUX PUMP SUBUNIT ACRB,MULTIDRUGEFFLUX PUMP SUBUNIT ACRB | 
| 5eqb | 1YN | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5erg | SAM | Saccharomyces cerevisiae | TRNA (ADENINE(58)-N(1))-METHYLTRANSFERASECATALYTIC SUBUNIT TRM61 | 
| 5erm | 210 | Diaporthe amygdali | FUSICOCCADIENE SYNTHASE | 
| 5ero | 210 | Diaporthe amygdali | FUSICOCCADIENE SYNTHASE | 
| 5ers | ACT | Rattus norvegicus | GEPHYRIN | 
| 5ese | TPF | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5esf | TPF | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5esg | 1YN | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5esh | 1YN | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5esj | TPF | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5esk | 1YN | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5esl | 1YN | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5esm | TPF | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5eu8 | 010 | Alphacoronavirus 1;synthetic construct | N-[(5-METHYLISOXAZOL-3-YL)CARBONYL]ALANYL-L-VALYL-N~1~-((1R,2Z)-4-(BENZYLOXY)-4-OXO-1-{[(3R)-2-OXOPYRROLIDIN-3-YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE;MAIN PROTEASE | 
| 5eum | ACT | Haemophilus influenzae | LIPID A EXPORT ATP-BINDING/PERMEASE PROTEINMSBA | 
| 5evy | SAL | Pseudomonas putida | SALICYLATE HYDROXYLASE | 
| 5ewj | QEL | Homo sapiens;Xenopus laevis | GLUTAMATE RECEPTOR IONOTROPIC, NMDA 2B;NMDA GLUTAMATE RECEPTOR SUBUNIT | 
| 5ewu | BEZ | Arabidopsis thaliana | MAGNESIUM-CHELATASE SUBUNIT CHLH,CHLOROPLASTIC | 
| 5ewz | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 5exa | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 5eyp | LOC | Ovis aries | TUBULIN ALPHA CHAIN;TUBULIN BETA CHAIN | 
| 5f1a | SAL | Homo sapiens | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 5f8y | X6X | Crenomytilus grayanus | GALNAC/GAL-SPECIFIC LECTIN | 
| 5f9z | HFG | Cryptosporidium parvum | AMINOACYL-TRNA SYNTHETASE | 
| 5fa8 | SAM | Sulfolobus islandicus | RIBOSOMAL PROTEIN L11 METHYLTRANSFERASE,PUTATIVE | 
| 5fct | C2F | Mus musculus | THYMIDYLATE SYNTHASE | 
| 5fep | SAM | Thermotoga maritima | [FEFE] HYDROGENASE MATURASE SUBUNIT HYDE | 
| 5fes | SAM | Thermotoga maritima | [FEFE] HYDROGENASE MATURASE SUBUNIT HYDE | 
| 5ff1 | MMZ | Capra hircus | LACTOPEROXIDASE | 
| 5fhq | SAM | Rattus norvegicus | CATECHOL O-METHYLTRANSFERASE | 
| 5fhr | SAM | Rattus norvegicus | CATECHOL O-METHYLTRANSFERASE | 
| 5fhz | REA | Homo sapiens | ALDEHYDE DEHYDROGENASE FAMILY 1 MEMBER A3 | 
| 5fj2 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5fj3 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5flc | RAP | Homo sapiens;Spodoptera frugiperda | FKBP;SERINE/THREONINE-PROTEIN KINASE MTOR | 
| 5fpd | PZA | Homo sapiens | HEAT SHOCK-RELATED 70KDA PROTEIN 2 | 
| 5fqd | LVY | Homo sapiens | CASEIN KINASE I ISOFORM ALPHA;PROTEIN CEREBLON | 
| 5fsa | X2N | Candida albicans | CYP51 VARIANT1 | 
| 5fse | HQE | Sporosarcina pasteurii | UREASE SUBUNIT ALPHA | 
| 5fuk | SNP | Marasmius rotula | MROUPO | 
| 5fuq | ACT | Homo sapiens | NAD(P)H DEHYDROGENASE [QUINONE] 1 | 
| 5fvo | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvp | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvq | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvr | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvs | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvt | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvu | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvv | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvw | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvx | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fvy | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5fvz | H4B | Bos taurus | ENDOTHELIAL NITRIC OXIDE SYNTHASE | 
| 5fw0 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5fxf | BEZ | Rhodococcus jostii | EUGENOL OXIDASE | 
| 5fxt | 0LA | Helicobacter pylori | DNA POLYMERASE III SUBUNIT BETA | 
| 5g08 | Z80 | Drosophila melanogaster | FREQUENIN 2 | 
| 5g0n | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5g0o | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5g0p | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5g44 | YTZ | Homo sapiens | NUCLEAR RECEPTOR ROR-GAMMA | 
| 5g48 | 1FL | Helicobacter pylori | DNA POLYMERASE III SUBUNIT BETA | 
| 5g4b | PZE | Aura virus | CAPSID PROTEIN | 
| 5g5g | ACT | Escherichia coli | PUTATIVE XANTHINE DEHYDROGENASE YAGRMOLYBDENUM-BINDING SU SUBUNIT | 
| 5g5g | ACT | Escherichia coli | PUTATIVE XANTHINE DEHYDROGENASE YAGRMOLYBDENUM-BINDING SU SUBUNIT;PUTATIVE XANTHINE DEHYDROGENASE YAGTIRON-SULFUR-BINDING SUBUNIT | 
| 5g5g | ACT | Escherichia coli | PUTATIVE XANTHINE DEHYDROGENASE YAGSFAD-BINDING SUBUNIT | 
| 5g5h | ACT | Escherichia coli | PUTATIVE XANTHINE DEHYDROGENASE YAGRMOLYBDENUM-BINDING SUBUNIT | 
| 5g5h | ACT | Escherichia coli | PUTATIVE XANTHINE DEHYDROGENASE YAGRMOLYBDENUM-BINDING SUBUNIT;PUTATIVE XANTHINE DEHYDROGENASE YAGTIRON-SULFUR-BINDING SUBUNIT | 
| 5g5h | ACT | Escherichia coli | PUTATIVE XANTHINE DEHYDROGENASE YAGTIRON-SULFUR-BINDING SUBUNIT | 
| 5g5j | MF8 | Homo sapiens | CYTOCHROME P450 3A4 | 
| 5g6c | H4B | Bacillus subtilis | NITRIC OXIDE SYNTHASE OXYGENASE | 
| 5g6s | RAU | Aspergillus oryzae | IMINE REDUCTASE | 
| 5ghy | CED | Bacillus licheniformis | BETA-LACTAMASE | 
| 5ghz | CED | Bacillus licheniformis | BETA-LACTAMASE | 
| 5glm | ACT | uncultured bacterium | GLYCOSIDE HYDROLASE FAMILY 43 | 
| 5gpg | RAP | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP3;SERINE/THREONINE-PROTEIN KINASE MTOR | 
| 5gqb | GCS | Ostrinia furnacalis | CHITINASE | 
| 5gs4 | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 5gsm | GCS | Thermococcus kodakarensis | EXO-BETA-D-GLUCOSAMINIDASE | 
| 5gsn | MMZ | Roseovarius nubinhibens | FLAVIN-CONTAINING MONOOXYGENASE | 
| 5gtr | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 5gwk | EVP | Homo sapiens;synthetic construct | DNA TOPOISOMERASE 2-ALPHA | 
| 5gwx | SAM | Methanohalophilus portucalensis | GLYCINE SARCOSINE N-METHYLTRANSFERASE | 
| 5gwy | 010 | Human coronavirus NL63;synthetic construct | N-[(5-METHYLISOXAZOL-3-YL)CARBONYL]ALANYL-L-VALYL-N~1~-((1R,2Z)-4-(BENZYLOXY)-4-OXO-1-{[(3R)-2-OXOPYRROLIDIN-3-YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE;MAIN PROTEASE | 
| 5gwz | 010 | Porcine epidemic diarrhea virus;synthetic construct | N-[(5-METHYLISOXAZOL-3-YL)CARBONYL]ALANYL-L-VALYL-N~1~-((1R,2Z)-4-(BENZYLOXY)-4-OXO-1-{[(3R)-2-OXOPYRROLIDIN-3-YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE;PEDV MAIN PROTEASE | 
| 5h1e | VDX | Rattus norvegicus | VITAMIN D3 RECEPTOR | 
| 5h2u | 1N1 | Homo sapiens | PROTEIN-TYROSINE KINASE 6 | 
| 5h3a | D16 | Human gammaherpesvirus 8 | ORF70 | 
| 5h4d | BBI | Homo sapiens | NAD-DEPENDENT PROTEIN DEACETYLASE SIRTUIN-3,MITOCHONDRIAL | 
| 5h5f | SAM | Saccharomyces cerevisiae | PROTEIN ARGININE N-METHYLTRANSFERASE SFM1 | 
| 5h8t | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 1 | 
| 5ha9 | TP0 | Homo sapiens | POLY [ADP-RIBOSE] POLYMERASE 1 | 
| 5hbm | NVP | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE/RIBONUCLEASE H | 
| 5hbs | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 1 | 
| 5hes | 032 | Homo sapiens | MITOGEN-ACTIVATED PROTEIN KINASE KINASEKINASE MLT | 
| 5hfj | SAM | Helicobacter pylori | ADENINE SPECIFIC DNA METHYLTRANSFERASE (DPNA) | 
| 5hg0 | SAM | Francisella tularensis | PANTOTHENATE SYNTHETASE | 
| 5hgc | HCY | Taeniopygia guttata | SERPIN | 
| 5hhj | GLY | Roseburia intestinalis | RETRON-TYPE REVERSE TRANSCRIPTASE | 
| 5hi2 | BAX | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE B-RAF | 
| 5hi6 | MTX | Yersinia pestis | DIHYDROFOLATE REDUCTASE | 
| 5hie | P06 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE B-RAF | 
| 5hik | SAM | Methanohalophilus portucalensis | GLYCINE SARCOSINE N-METHYLTRANSFERASE | 
| 5hji | ADN | Pyrococcus abyssi | TRNA (GUANINE(37)-N1)-METHYLTRANSFERASE TRM5A | 
| 5hkg | RAP | Homo sapiens | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP1B | 
| 5hm8 | ADN | Cryptosporidium parvum | ADENOSYLHOMOCYSTEINASE | 
| 5hnw | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5hnx | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5hny | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5hnz | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5hp1 | PPF | Human immunodeficiency virus 1 | HIV-1 REVERSE TRANSCRIPTASE P66 SUBUNIT | 
| 5hpu | IPH | Homo sapiens | INSULIN, CHAIN A;INSULIN, CHAIN B | 
| 5hpw | 3CJ | Capra hircus | LACTOPEROXIDASE | 
| 5hqa | ACR | Pseudoalteromonas sp. K8 | ALPHA-GLUCOSIDASE | 
| 5hrq | IPH | Homo sapiens | INSULIN A-CHAIN;INSULIN B-CHAIN | 
| 5hs1 | VOR | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5hs6 | J3Z | Homo sapiens | 17-BETA-HYDROXYSTEROID DEHYDROGENASE 14 | 
| 5hsw | ACT | Human gammaherpesvirus 8 | ORF 37 | 
| 5hua | FK5 | [Candida] glabrata | FK506-BINDING PROTEIN 1 | 
| 5hv1 | RFP | Listeria monocytogenes | PHOSPHOENOLPYRUVATE SYNTHASE | 
| 5hw4 | SAM | Escherichia coli | RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASEI | 
| 5hw8 | FK5 | Candida albicans | FK506-BINDING PROTEIN 1 | 
| 5hwa | GCS | Bacillus circulans | CHITOSANASE | 
| 5hwc | FK5 | Aspergillus fumigatus | FK506-BINDING PROTEIN 1A | 
| 5hwk | BEZ | Saccharomyces cerevisiae | GLUTATHIONE-SPECIFICGAMMA-GLUTAMYLCYCLOTRANSFERASE | 
| 5hyr | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 5i1n | DVA | Gallus gallus;synthetic construct | D-VILLIN HEADPIECE SUBDOMAIN;VILLIN-1 | 
| 5i1o | DVA | Gallus gallus;synthetic construct | D-VILLIN HEADPIECE SUBDOMAIN;VILLIN-1 | 
| 5i1p | DVA | Gallus gallus;synthetic construct | D-VILLIN HEADPIECE SUBDOMAIN;VILLIN-1 | 
| 5i3a | HQE | Bacillus megaterium | TYROSINASE | 
| 5i3b | HQE | Bacillus megaterium | TYROSINASE | 
| 5i3c | AC2 | Escherichia coli | PURINE NUCLEOSIDE PHOSPHORYLASE DEOD-TYPE | 
| 5i6x | 8PR | Homo sapiens | SODIUM-DEPENDENT SEROTONIN TRANSPORTER | 
| 5i71 | 68P | Homo sapiens | SODIUM-DEPENDENT SEROTONIN TRANSPORTER | 
| 5i73 | 68P | Homo sapiens | SODIUM-DEPENDENT SEROTONIN TRANSPORTER | 
| 5i75 | 68P | Homo sapiens | SODIUM-DEPENDENT SEROTONIN TRANSPORTER | 
| 5i8f | ML1 | Hypericum kouytchense | PHENOLIC OXIDATIVE COUPLING PROTEIN | 
| 5i9x | DB8 | Homo sapiens | EPHRIN TYPE-A RECEPTOR 2 | 
| 5i9y | 1N1 | Homo sapiens | EPHRIN TYPE-A RECEPTOR 2 | 
| 5iao | URF | Mycobacterium tuberculosis | BIFUNCTIONAL PROTEIN PYRR | 
| 5icx | SC2 | Homo sapiens;Mus musculus;synthetic construct | CETUXIMAB FAB LIGHT CHAIN;MEDITOPE | 
| 5ief | NBV | Mus musculus | NEUTRAL ALPHA-GLUCOSIDASE AB | 
| 5ien | VDY | synthetic construct | CDL2.2 | 
| 5ieo | VDY | synthetic construct | CDL2.3A | 
| 5iep | VDY | synthetic construct | CDL2.3B | 
| 5ifu | GBM | Plasmodium falciparum | PROLINE--TRNA LIGASE | 
| 5igi | ZIT | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE | 
| 5igj | CTY | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE | 
| 5igp | ERY | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE | 
| 5igt | ERY | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE | 
| 5igv | ZIT | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE II | 
| 5igw | CTY | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE II | 
| 5igy | ERY | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE II | 
| 5igz | SPR | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE II | 
| 5ih0 | ACT | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE II | 
| 5ih0 | ERY | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE II | 
| 5ik1 | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 5ikm | SAM | Dengue virus | NS5 METHYL TRANSFERASE | 
| 5ikq | JMS | Homo sapiens | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 5ikr | ID8 | Homo sapiens | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 5ikt | TLF | Homo sapiens | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 5il1 | SAM | Homo sapiens | METTL3 | 
| 5im2 | BEZ | Rhodoferax ferrireducens | TWIN-ARGININE TRANSLOCATION PATHWAY SIGNAL | 
| 5ims | ACT | Saccharomyces cerevisiae | ACETOLACTATE SYNTHASE CATALYTIC SUBUNIT,MITOCHONDRIAL | 
| 5inz | DVA | Papio anubis;synthetic construct | THETA DEFENSIN-2, D-PEPTIDE;THETA DEFENSIN-2, L-PEPTIDE | 
| 5iqb | KAN | Staphylococcus aureus | BIFUNCTIONAL AAC/APH | 
| 5iqc | 51G | Staphylococcus aureus | BIFUNCTIONAL AAC/APH | 
| 5iqd | RIO | Staphylococcus aureus | BIFUNCTIONAL AAC/APH | 
| 5iqe | NMY | Staphylococcus aureus | BIFUNCTIONAL AAC/APH | 
| 5iqg | 51G | Staphylococcus aureus | BIFUNCTIONAL AAC/APH | 
| 5itz | LOC | Bos taurus | TUBULIN ALPHA-1B CHAIN;TUBULIN BETA-2B CHAIN | 
| 5iwu | ACT | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE II | 
| 5iwu | ERY | Escherichia coli | MACROLIDE 2'-PHOSPHOTRANSFERASE II | 
| 5iy5 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5iy5 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5iy5 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5iy5 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5iy5 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5izf | AZ1 | Homo sapiens;synthetic construct | 6J9-ZEU-DAR-ACA-DAR-NH2;CAMP-DEPENDENT PROTEIN KINASE CATALYTICSUBUNIT ALPHA | 
| 5izj | AZ1 | Homo sapiens | 47P-AZ1-DAR-DAR-DAR;CAMP-DEPENDENT PROTEIN KINASE CATALYTICSUBUNIT ALPHA | 
| 5izj | AZ1 | Homo sapiens | 47P-AZ1-DAR-DAR;CAMP-DEPENDENT PROTEIN KINASE CATALYTICSUBUNIT ALPHA | 
| 5j2t | VLB | Bos taurus | TUBULIN ALPHA-1B CHAIN;TUBULIN BETA-2B CHAIN | 
| 5j31 | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 5j4n | AG2 | Escherichia coli | ARGININE/AGMATINE ANTIPORTER | 
| 5j5x | AZ1 | Homo sapiens | 47P-AZ1-DAL-DAR-DAR-DAR-DAR;CAMP-DEPENDENT PROTEIN KINASE CATALYTICSUBUNIT ALPHA | 
| 5j6h | NCA | Mus musculus | H-2 CLASS I HISTOCOMPATIBILITY ANTIGEN, Q10ALPHA CHAIN | 
| 5j7w | MTX | Enterococcus faecalis | THYMIDYLATE SYNTHASE | 
| 5jcn | ASC | Oryza sativa | OS09G0567300 PROTEIN | 
| 5jcw | ACT | Homo sapiens | GLUTATHIONE S-TRANSFERASE P | 
| 5jdc | 6JP | Trypanosoma brucei | PTERIDINE REDUCTASE | 
| 5jgl | SAM | Aspergillus fumigatus | UBIE/COQ5 FAMILY METHYLTRANSFERASE, PUTATIVE | 
| 5jh7 | 6K9 | Bos taurus | TUBULIN ALPHA-1B CHAIN;TUBULIN BETA-2B CHAIN | 
| 5jh7 | 6K9 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5jhd | EDT | Homo sapiens | BETA-2-MICROGLOBULIN;TCRBETA CHAIN | 
| 5jhd | EDT | Homo sapiens | TCRBETA CHAIN | 
| 5jhn | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5ji0 | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 5ji0 | BRL | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 5jin | SAM | Homo sapiens | HISTONE H3.1 PEPTIDE WITH K9M MUTATION;HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5jin | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5jiy | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5jj0 | SAM | Homo sapiens | HISTONE H3K9M MUTANT PEPTIDE;HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5jj0 | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5jkv | ASD | Homo sapiens | AROMATASE | 
| 5jkw | TES | Homo sapiens | AROMATASE | 
| 5jl6 | ASD | Homo sapiens | AROMATASE | 
| 5jl7 | ASD | Homo sapiens | AROMATASE | 
| 5jl9 | ASD | Homo sapiens | AROMATASE | 
| 5jlc | 1YN | [Candida] glabrata | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5jli | ASC | Achromobacter xylosoxidans | CYTOCHROME C' | 
| 5jm4 | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 5jmn | FUA | Escherichia coli | MULTIDRUG EFFLUX PUMP SUBUNIT ACRB | 
| 5jn8 | AZM | Homo sapiens | CARBONIC ANHYDRASE 4 | 
| 5jn9 | EZL | Homo sapiens | CARBONIC ANHYDRASE 4 | 
| 5jna | TOR | Homo sapiens | CARBONIC ANHYDRASE 4 | 
| 5jnc | 6LH | Homo sapiens | CARBONIC ANHYDRASE 4 | 
| 5jnc | ACT | Homo sapiens | CARBONIC ANHYDRASE 4 | 
| 5jo9 | SOR | Bradyrhizobium japonicum | RIBITOL 2-DEHYDROGENASE | 
| 5jq7 | T0R | Zaire ebolavirus | ENVELOPE GLYCOPROTEIN 1,ENVELOPE GLYCOPROTEIN1,ENVELOPE GLYCOPROTEIN 1;ENVELOPE GLYCOPROTEIN 2 | 
| 5jqb | IBP | Zaire ebolavirus | ENVELOPE GLYCOPROTEIN 1,ENVELOPE GLYCOPROTEIN1,ENVELOPE GLYCOPROTEIN 1;ENVELOPE GLYCOPROTEIN 2 | 
| 5jra | ASC | Achromobacter xylosoxidans | CYTOCHROME C' | 
| 5js1 | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 5js5 | ASC | Achromobacter xylosoxidans | CYTOCHROME C' | 
| 5jsd | 1GN | unidentified phage | PHIAB6 TAILSPIKE | 
| 5jse | 1GN | unidentified phage | PHIAB6 TAILSPIKE | 
| 5jsl | ASC | Achromobacter xylosoxidans | CYTOCHROME C' | 
| 5jt4 | ASC | Achromobacter xylosoxidans | CYTOCHROME C' | 
| 5jvz | FLP | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 5jw1 | CEL | Mus musculus | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 5jwa | ACT | Plasmodium falciparum | NADH DEHYDROGENASE, PUTATIVE | 
| 5jwb | ACT | Plasmodium falciparum | TYPE II NADH:UBIQUINONE OXIDOREDUCTASE | 
| 5k4p | SOR | Escherichia coli | PROBABLE PHOSPHATIDYLETHANOLAMINE TRANSFERASEMCR-1 | 
| 5k50 | ACT | Trypanosoma brucei | L-THREONINE 3-DEHYDROGENASE | 
| 5k7u | SAM | Homo sapiens | N6-ADENOSINE-METHYLTRANSFERASE 70 KDA SUBUNIT | 
| 5k9d | ACT | Homo sapiens | DIHYDROOROTATE DEHYDROGENASE (QUINONE),MITOCHONDRIAL | 
| 5k9d | CE9 | Homo sapiens | DIHYDROOROTATE DEHYDROGENASE (QUINONE),MITOCHONDRIAL | 
| 5kb5 | ADN | Mus musculus | ADENOSINE KINASE | 
| 5kb6 | ADN | Mus musculus | ADENOSINE KINASE | 
| 5kbw | RBF | Thermotoga maritima | RIBOFLAVIN TRANSPORTER RIBU | 
| 5kc0 | RBF | Thermotoga maritima | RIBOFLAVIN TRANSPORTER RIBU | 
| 5kc4 | RBF | Thermotoga maritima | RIBOFLAVIN TRANSPORTER RIBU | 
| 5kf8 | GCS | Clostridium acetobutylicum | PREDICTED ACETYLTRANSFERASE | 
| 5kgj | X6X | Clostridium acetobutylicum | PREDICTED ACETYLTRANSFERASE | 
| 5kgp | GCS | Clostridium acetobutylicum | PREDICTED ACETYLTRANSFERASE | 
| 5kgp | PA1 | Clostridium acetobutylicum | PREDICTED ACETYLTRANSFERASE | 
| 5ki6 | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 5kir | RCX | Homo sapiens | PROSTAGLANDIN G/H SYNTHASE 2 | 
| 5kjk | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 5kjl | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 5kjm | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 5kjn | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 5kkl | SAM | Homo sapiens;Chaetomium thermophilum | PUTATIVE UNCHARACTERIZED PROTEIN,HISTONE H3.1PEPTIDE,ZINC FINGER DOMAIN-CONTAINING PROTEIN | 
| 5kkz | ASC | Rhodobacter sphaeroides | CYTOCHROME B;UBIQUINOL-CYTOCHROME C REDUCTASE IRON-SULFURSUBUNIT | 
| 5kla | ACT | Drosophila melanogaster | MATERNAL PROTEIN PUMILIO | 
| 5km8 | L8P | Homo sapiens | HISTIDINE TRIAD NUCLEOTIDE-BINDING PROTEIN 2,MITOCHONDRIAL | 
| 5km9 | ADN | Homo sapiens | HISTIDINE TRIAD NUCLEOTIDE-BINDING PROTEIN 2,MITOCHONDRIAL | 
| 5kmd | 6UB | Arcobacter butzleri | ION TRANSPORT PROTEIN | 
| 5kmf | 6U9 | Arcobacter butzleri | ION TRANSPORT PROTEIN | 
| 5kmw | PNN | Escherichia coli | BETA-LACTAMASE TOHO-1 | 
| 5koc | SAM | Thalictrum flavum | PAVINE N-METHYLTRANSFERASE | 
| 5kox | RFP | Nocardia farcinica | PENTACHLOROPHENOL 4-MONOOXYGENASE | 
| 5kpc | SAM | Thalictrum flavum | PAVINE N-METHYLTRANSFERASE | 
| 5kpr | PAU | Homo sapiens | PANTOTHENATE KINASE 3 | 
| 5kqr | SAM | Zika virus | METHYLTRANSFERASE | 
| 5kqs | SAM | Zika virus | GENOME POLYPROTEIN | 
| 5kqx | ROC | Human immunodeficiency virus 1 | PROTEASE E35D-SQV | 
| 5kqy | 017 | Human immunodeficiency virus 1 | PROTEASE E35D-DRV | 
| 5kr0 | 478 | Human immunodeficiency virus 1 | PROTEASE E35D-APV | 
| 5kr1 | 017 | Human immunodeficiency virus 1 | PROTEASE PR5-DRV | 
| 5kr2 | ROC | Human immunodeficiency virus 1 | PROTEASE PR5-SQV | 
| 5ksg | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 5ksn | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 5kt8 | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 5ku6 | MZM | Homo sapiens | CARBONIC ANHYDRASE 4 | 
| 5kva | SAM | Sorghum bicolor | CAFFEOYL-COA O-METHYLTRANSFERASE | 
| 5kxi | NCT | Homo sapiens | NEURONAL ACETYLCHOLINE RECEPTOR SUBUNITALPHA-4;NEURONAL ACETYLCHOLINE RECEPTOR SUBUNITBETA-2 | 
| 5l0z | SAM | Sinorhizobium meliloti | PROBABLE RNA METHYLTRANSFERASE, TRMH FAMILY | 
| 5l17 | ZMR | Influenza A virus | NEURAMINIDASE | 
| 5l1f | 6ZP | Rattus norvegicus | GLUTAMATE RECEPTOR 2 | 
| 5l2i | LQQ | Homo sapiens | CYCLIN-DEPENDENT KINASE 6 | 
| 5l2t | 6ZZ | Homo sapiens | CYCLIN-DEPENDENT KINASE 6 | 
| 5l4e | EDP | Gloeobacter | PROTON-GATED ION CHANNEL | 
| 5l4i | 6J3 | Homo sapiens | TRANSTHYRETIN | 
| 5l5f | BO2 | Homo sapiens;Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-6,PROTEASOMESUBUNIT BETA TYPE-1,PROTEASOME SUBUNIT BETATYPE-6,PROTEASOME SUBUNIT BETATYPE-1,PROTEASOME SUBUNIT BETA TYPE-6;PROTEASOME SUBUNIT BETA TYPE-8,PROTEASOMESUBUNIT BETA TYPE-5 | 
| 5l5f | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 5l5f | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 5l5z | BO2 | Homo sapiens;Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5,PROTEASOMESUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6,PROTEASOMESUBUNIT BETA TYPE-1,PROTEASOME SUBUNIT BETATYPE-6,PROTEASOME SUBUNIT BETATYPE-1,PROTEASOME SUBUNIT BETA TYPE-6 | 
| 5l5z | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 5l5z | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 5l66 | BO2 | Mus musculus;Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-6,PROTEASOMESUBUNIT BETA TYPE-1,PROTEASOME SUBUNIT BETATYPE-6,PROTEASOME SUBUNIT BETATYPE-1,PROTEASOME SUBUNIT BETA TYPE-6;PROTEASOME SUBUNIT BETA TYPE-8,PROTEASOMESUBUNIT BETA TYPE-5 | 
| 5l66 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 5l66 | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 5l6e | ACT | Homo sapiens | N6-ADENOSINE-METHYLTRANSFERASE 70 KDASUBUNIT;N6-ADENOSINE-METHYLTRANSFERASE SUBUNITMETTL14 | 
| 5l6e | SAM | Homo sapiens | N6-ADENOSINE-METHYLTRANSFERASE 70 KDA SUBUNIT | 
| 5l7i | VIS | Escherichia coli;Homo sapiens | SMOOTHENED HOMOLOG,SOLUBLE CYTOCHROMEB562,SMOOTHENED HOMOLOG | 
| 5l8d | ACT | Escherichia coli | NICKEL-BINDING PERIPLASMIC PROTEIN | 
| 5l8d | EDT | Escherichia coli | NICKEL-BINDING PERIPLASMIC PROTEIN | 
| 5l8o | CHD | Homo sapiens | GASTROTROPIN | 
| 5l8r | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 5l8r | PQN | Pisum sativum | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 5l94 | TES | Bacillus megaterium | CYTOCHROME P450 | 
| 5lak | BEZ | Alphamesonivirus 1;synthetic construct | 3CL PROTEASE;BEZ-TYR-TYR-ASN-ECC PEPTIDE INHIBITOR | 
| 5lbt | 6T0 | Homo sapiens | RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE[QUINONE] | 
| 5lf3 | BO2 | Homo sapiens | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-5 | 
| 5lf3 | BO2 | Homo sapiens | PROTEASOME SUBUNIT BETA TYPE-3;PROTEASOME SUBUNIT BETA TYPE-7 | 
| 5lf3 | BO2 | Homo sapiens | PROTEASOME SUBUNIT BETA TYPE-6;PROTEASOME SUBUNIT BETA TYPE-7 | 
| 5lf7 | 6V8 | Homo sapiens | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-5 | 
| 5lf7 | 6V8 | Homo sapiens | PROTEASOME SUBUNIT BETA TYPE-3;PROTEASOME SUBUNIT BETA TYPE-7 | 
| 5lf7 | 6V8 | Homo sapiens | PROTEASOME SUBUNIT BETA TYPE-6;PROTEASOME SUBUNIT BETA TYPE-7 | 
| 5lg3 | Z80 | Dickeya dadantii | GAMMA-AMINOBUTYRIC-ACID RECEPTOR SUBUNITBETA-1 | 
| 5li8 | KKK | Mycobacterium tuberculosis | PUTATIVE CYTOCHROME P450 126 | 
| 5ljb | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 1 | 
| 5ljc | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 1 | 
| 5ljd | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 1 | 
| 5lje | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 1 | 
| 5log | LDP | Myxococcus xanthus | PUTATIVE O-METHYLTRANSFERASE | 
| 5lrb | ACR | Hordeum vulgare | ALPHA-1,4 GLUCAN PHOSPHORYLASE | 
| 5lsa | SAM | Homo sapiens | CATECHOL O-METHYLTRANSFERASE | 
| 5lsu | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE NSD2 | 
| 5luh | SRY | Salmonella enterica | STREPTOMYCIN 3''-ADENYLYLTRANSFERASE | 
| 5lur | STR | Gallus gallus | AVIDIN | 
| 5lvn | ADN | Homo sapiens | 3-PHOSPHOINOSITIDE-DEPENDENT PROTEIN KINASE 1 | 
| 5lw1 | ADN | Homo sapiens | MITOGEN-ACTIVATED PROTEIN KINASE 8 | 
| 5lxb | 7A9 | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 5m0i | ACT | Saccharomyces cerevisiae | SWI5-DEPENDENT HO EXPRESSION PROTEIN 2 | 
| 5m0o | EPA | Jeotgalicoccus sp. ATCC 8456 | TERMINAL OLEFIN-FORMING FATTY ACIDDECARBOXYLASE | 
| 5m10 | NCA | Thermocrispum municipale | CYCLOHEXANONE MONOOXYGENASE FROMTHERMOCRISPUM MUNICIPALE | 
| 5m24 | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR GAMMA | 
| 5m35 | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 5m36 | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 5m37 | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 5m45 | ACT | Xanthobacter autotrophicus | ACETONE CARBOXYLASE ALPHA SUBUNIT | 
| 5m45 | ACT | Xanthobacter autotrophicus | ACETONE CARBOXYLASE ALPHA SUBUNIT;ACETONE CARBOXYLASE BETA SUBUNIT | 
| 5m50 | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5m54 | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5m5b | SAM | Zika virus | NS5 METHYLTRANSFERASE | 
| 5m5c | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5m5k | ADN | Bradyrhizobium elkanii | ADENOSYLHOMOCYSTEINASE | 
| 5m66 | ADN | Bradyrhizobium elkanii | ADENOSYLHOMOCYSTEINASE | 
| 5m67 | ACT | Bradyrhizobium elkanii | ADENOSYLHOMOCYSTEINASE | 
| 5m6g | SOR | Saccharopolyspora erythraea | BETA-GLUCOSIDASE | 
| 5m78 | SAL | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 5m8n | MMS | Homo sapiens | 5,6-DIHYDROXYINDOLE-2-CARBOXYLIC ACID OXIDASE | 
| 5m8r | MMS | Homo sapiens | 5,6-DIHYDROXYINDOLE-2-CARBOXYLIC ACID OXIDASE | 
| 5m8w | 4CH | Sulfurospirillum multivorans | TETRACHLOROETHENE REDUCTIVE DEHALOGENASECATALYTICALLY ACTIVE SUBUNIT | 
| 5maf | XIN | Homo sapiens | MATERNAL EMBRYONIC LEUCINE ZIPPER KINASE | 
| 5mej | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mew | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mfx | ACT | Zika virus | GENOME POLYPROTEIN | 
| 5mhe | T44 | ||
| 5mhu | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mhv | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mhw | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mhx | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mhy | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mhz | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mi1 | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mi2 | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mia | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mib | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mic | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mid | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mie | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mig | CU | Steccherinum murashkinskyi | LACCASE 2 | 
| 5mio | LOC | Bos taurus;Ovis aries | TUBULIN ALPHA-1B CHAIN;TUBULIN BETA CHAIN | 
| 5mlm | STR | - | - | 
| 5mm4 | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 5mm7 | TA1 | - | - | 
| 5mo4 | NIL | Homo sapiens | TYROSINE-PROTEIN KINASE ABL1 | 
| 5mqt | STI | Homo sapiens | DEOXYCYTIDINE KINASE | 
| 5mra | DM2 | Homo sapiens | SORCIN | 
| 5msd | BEZ | Nocardia iowensis | CARBOXYLIC ACID REDUCTASE | 
| 5mth | ACT | Mus musculus | ANTIBODY FAB HEAVY CHAIN | 
| 5mth | ACT | Mus musculus | ANTIBODY FAB HEAVY CHAIN;ANTIBODY FAB LIGHT CHAIN | 
| 5mue | VIV | Homo sapiens | ALPHA-TOCOPHEROL TRANSFER PROTEIN | 
| 5mug | VIV | Homo sapiens | ALPHA-TOCOPHEROL TRANSFER PROTEIN | 
| 5muo | PFL | Gloeobacter violaceus | PROTON-GATED ION CHANNEL | 
| 5mur | PFL | Gloeobacter violaceus | PROTON-GATED ION CHANNEL | 
| 5mvm | PFL | Gloeobacter violaceus | PROTON-GATED ION CHANNEL | 
| 5mvn | PFL | Gloeobacter violaceus | PROTON-GATED ION CHANNEL | 
| 5mvs | ADN | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE, H3LYSINE-79 SPECIFIC | 
| 5mwu | ACT | Escherichia coli | NICKEL-BINDING PERIPLASMIC PROTEIN | 
| 5mwu | EDT | Escherichia coli | NICKEL-BINDING PERIPLASMIC PROTEIN | 
| 5mwy | YNU | Homo sapiens | MINERALOCORTICOID RECEPTOR | 
| 5mxb | ML1 | Lupinus luteus | CLASS 10 PLANT PATHOGENESIS-RELATED PROTEIN | 
| 5mxw | ML1 | Lupinus luteus | CLASS 10 PLANT PATHOGENESIS-RELATED PROTEIN | 
| 5mzj | TEP | Escherichia coli;Homo sapiens | ADENOSINE RECEPTOR A2A,SOLUBLE CYTOCHROMEB562,ADENOSINE RECEPTOR A2A | 
| 5mzp | CFF | Escherichia coli;Homo sapiens | ADENOSINE RECEPTOR A2A,SOLUBLE CYTOCHROMEB562,ADENOSINE RECEPTOR A2A | 
| 5mzr | PFL | Gloeobacter violaceus | PROTON-GATED ION CHANNEL | 
| 5n0o | SAM | Omphalotus olearius | PEPTIDE N-METHYLTRANSFERASE | 
| 5n0r | SAM | Omphalotus olearius | PEPTIDE N-METHYLTRANSFERASE | 
| 5n0s | SAM | Omphalotus olearius | PEPTIDE N-METHYLTRANSFERASE | 
| 5n0t | SAM | Omphalotus olearius | PEPTIDE N-METHYLTRANSFERASE | 
| 5n0w | SAM | Omphalotus olearius | PEPTIDE N-METHYLTRANSFERASE | 
| 5n0x | SAM | Omphalotus olearius | PEPTIDE N-METHYLTRANSFERASE | 
| 5n1t | CU | Thioalkalivibrio paradoxus | COPC | 
| 5n3h | NCA | Cricetulus griseus | CAMP-DEPENDENT PROTEIN KINASE CATALYTICSUBUNIT ALPHA | 
| 5n4i | SAM | Omphalotus olearius | PEPTIDE N-METHYLTRANSFERASE | 
| 5n4t | BEZ | Pseudomonas aeruginosa | BETA-LACTAMASE VIM-2 | 
| 5n5d | SAM | Streptomyces regensis | METHYLTRANSFERASE | 
| 5n5j | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 5n5k | HAE | Homo sapiens | MACROPHAGE METALLOELASTASE | 
| 5n8j | DVA | Streptomyces avidinii;synthetic construct | GLY-DTY-GLY-DLE-DAL-DSG-DVA-DAS-DGL-DSN-DSN-GLY;STREPTAVIDIN | 
| 5n9x | THR | Streptomyces sp. | ADENYLATION DOMAIN | 
| 5ncd | ACT | Bacillus cereus | PEPTIDOGLYCAN N-ACETYLGLUCOSAMINE DEACETYLASE | 
| 5nd2 | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5nd3 | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5nd4 | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5nd7 | TA1 | Bos taurus | TUBULIN BETA-2B CHAIN | 
| 5ndv | PAR | ;Saccharomyces cerevisiae | ;18S RIBOSOMAL RNA;25S RIBOSOMAL RNA | 
| 5ndv | PAR | ;Saccharomyces cerevisiae | ;25S RIBOSOMAL RNA | 
| 5ndv | PAR | ;Saccharomyces cerevisiae | ;5.8S RIBOSOMAL RNA;5S RIBOSOMAL RNA | 
| 5ndv | PAR | Saccharomyces cerevisiae | 18S RIBOSOMAL RNA;25S RIBOSOMAL RNA | 
| 5ndv | PAR | Saccharomyces cerevisiae | 18S RIBOSOMAL RNA;5.8S RIBOSOMAL RNA | 
| 5ndv | PAR | Saccharomyces cerevisiae | 18S RIBOSOMAL RNA;5S RIBOSOMAL RNA | 
| 5ndv | PAR | Saccharomyces cerevisiae | 25S RIBOSOMAL RNA;5.8S RIBOSOMAL RNA | 
| 5ndv | PAR | Saccharomyces cerevisiae | 25S RIBOSOMAL RNA;5S RIBOSOMAL RNA | 
| 5nek | AZM | Bacillus cereus | PEPTIDOGLYCAN N-ACETYLGLUCOSAMINE DEACETYLASE | 
| 5nel | ACT | Bacillus cereus | PEPTIDOGLYCAN N-ACETYLGLUCOSAMINE DEACETYLASE | 
| 5nfj | SAM | Homo sapiens | MITOCHONDRIAL RIBONUCLEASE P PROTEIN 1 | 
| 5nfp | 8W5 | Homo sapiens | GLUCOCORTICOID RECEPTOR | 
| 5nha | SOR | Piromyces sp. E2 | XYLOSE ISOMERASE | 
| 5njv | SAM | Zika virus | NS5 | 
| 5nkn | LOC | Homo sapiens | NEUTROPHIL GELATINASE-ASSOCIATED LIPOCALIN | 
| 5nm5 | LOC | Bos taurus | TUBULIN ALPHA-1B CHAIN;TUBULIN BETA-2B CHAIN | 
| 5nn4 | SC2 | Homo sapiens | LYSOSOMAL ALPHA-GLUCOSIDASE | 
| 5nn6 | MIG | Homo sapiens | LYSOSOMAL ALPHA-GLUCOSIDASE | 
| 5nn8 | ACR | Homo sapiens | LYSOSOMAL ALPHA-GLUCOSIDASE | 
| 5nna | BZM | Labrenzia aggregata | ISATIN HYDROLASE A | 
| 5nnw | GCS | Pythium aphanidermatum | 25 KDA PROTEIN ELICITOR | 
| 5no9 | 95Z | Pythium aphanidermatum | 25 KDA PROTEIN ELICITOR | 
| 5noo | D16 | Caenorhabditis elegans | THYMIDYLATE SYNTHASE | 
| 5nr3 | 95E | Homo sapiens | DNA (CYTOSINE-5)-METHYLTRANSFERASE 3B | 
| 5nu7 | RTL | Homo sapiens | RETINOL-BINDING PROTEIN 4 | 
| 5nuj | Z80 | Bos taurus | BETA-LACTOGLOBULIN | 
| 5nuk | Z80 | Bos taurus | BETA-LACTOGLOBULIN | 
| 5num | Z80 | Bos taurus | BETA-LACTOGLOBULIN | 
| 5nun | Z80 | Bos taurus | BETA-LACTOGLOBULIN | 
| 5nvp | ACA | Human immunodeficiency virus 1 | ENVELOPE GLYCOPROTEIN,GP41 | 
| 5nwu | ACA | Human immunodeficiency virus 1;unidentified | WTFP-TAG,GP41 | 
| 5nwv | ACA | Human immunodeficiency virus 1 | SCRFP-TAG,GP41 | 
| 5nww | ACA | Human immunodeficiency virus 1 | SCRFP-TAG,GP41 | 
| 5ny7 | NCA | Nesterenkonia sp. 10004 | AMIDASE | 
| 5nz0 | ZLD | Mycobacterium tuberculosis | HTH-TYPE TRANSCRIPTIONAL REGULATOR ETHR | 
| 5nzw | 9F2 | Homo sapiens | DNA CROSS-LINK REPAIR 1A PROTEIN | 
| 5nzx | 9F2 | Homo sapiens | DNA CROSS-LINK REPAIR 1A PROTEIN | 
| 5nzy | CE3 | Homo sapiens | DNA CROSS-LINK REPAIR 1A PROTEIN | 
| 5o45 | CCS | Homo sapiens;synthetic construct | PHE-MEA-9KK-SAR-ASP-VAL-MEA-TYR-SAR-TRP-TYR-LEU-CCS-GLY-NH2;PROGRAMMED CELL DEATH 1 LIGAND 1 | 
| 5o4y | CCS | Homo sapiens;synthetic construct | PHE-MAA-ASN-PRO-HIS-LEU-SER-TRP-SER-TRP-9KK-9KK-ARG-CCS-GLY-NH2;PROGRAMMED CELL DEATH 1 LIGAND 1 | 
| 5o4y | CCS | synthetic construct | PHE-MAA-ASN-PRO-HIS-LEU-SER-TRP-SER-TRP-9KK-9KK-ARG-CCS-GLY-NH2 | 
| 5o87 | NCT | Aplysia californica | SOLUBLE ACETYLCHOLINE RECEPTOR | 
| 5o96 | SAM | Legionella pneumophila | RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASEE | 
| 5oaj | TKT | ||
| 5obm | LLL | Saccharomyces cerevisiae | 18S RIBOSOMAL RNA | 
| 5obm | LLL | Saccharomyces cerevisiae | 25S RIBOSOMAL RNA | 
| 5ocs | ACT | Cupriavidus metallidurans | PUTATIVE NADH-DEPENTDENT FLAVINOXIDOREDUCTASE | 
| 5odc | ACT | Methanothermococcus thermolithotrophicus | HETERODISULFIDE REDUCTASE, SUBUNIT A | 
| 5odc | ACT | Methanothermococcus thermolithotrophicus | HETERODISULFIDE REDUCTASE, SUBUNIT A;HETERODISULFIDE REDUCTASE, SUBUNIT B;HETERODISULFIDE REDUCTASE, SUBUNIT C | 
| 5odc | ACT | Methanothermococcus thermolithotrophicus | METHYL-VIOLOGEN REDUCING HYDROGENASE SUBUNITA | 
| 5odh | ACT | Methanothermococcus thermolithotrophicus | HETERODISULFIDE REDUCTASE, SUBUNIT A | 
| 5odi | ACT | Methanothermococcus thermolithotrophicus | HETERODISULFIDE REDUCTASE, SUBUNIT A | 
| 5odi | ACT | Methanothermococcus thermolithotrophicus | METHYL-VIOLOGEN REDUCING HYDROGENASE, SUBUNITD | 
| 5odq | ACT | Methanothermococcus thermolithotrophicus | HETERODISULFIDE REDUCTASE, SUBUNIT A | 
| 5odq | ACT | Methanothermococcus thermolithotrophicus | METHYL-VIOLOGEN REDUCING HYDROGENASE, SUBUNITD | 
| 5odr | ACT | Methanothermococcus thermolithotrophicus | METHYL-VIOLOGEN REDUCING HYDROGENASE, SUBUNITA;METHYL-VIOLOGEN REDUCING HYDROGENASE, SUBUNITG | 
| 5odr | ACT | Methanothermococcus thermolithotrophicus | METHYL-VIOLOGEN REDUCING HYDROGENASE, SUBUNITD | 
| 5oex | CU | Thioalkalivibrio paradoxus | THIOCYANATE DEHYDROGENASE | 
| 5of1 | SAL | Bacillus subtilis | SPORE COAT-ASSOCIATED PROTEIN N | 
| 5og9 | TES | - | - | 
| 5ogc | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 5ogj | ACT | Homo sapiens | CARBONIC ANHYDRASE 13 | 
| 5oh1 | 9UQ | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 5oh1 | EF2 | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 5oh3 | 9V2 | Magnetospirillum gryphiswaldense | CEREBLON ISOFORM 4 | 
| 5ohh | ACT | Homo sapiens | CARBONIC ANHYDRASE 13 | 
| 5oj0 | 9WT | Streptococcus pneumoniae | PENICILLIN-BINDING PROTEIN 2X | 
| 5om2 | DXT | Homo sapiens | ALPHA-1-ANTICHYMOTRYPSIN | 
| 5om3 | DXT | Homo sapiens | ALPHA-1-ANTICHYMOTRYPSIN | 
| 5om7 | DM2 | Homo sapiens | ALPHA-1-ANTICHYMOTRYPSIN | 
| 5onl | 010 | Bacillus subtilis | YNDL | 
| 5os7 | ACT | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 5os8 | ACT | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 5osp | ACT | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 5osr | ACT | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 5otr | ACT | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 5ov9 | CVI | Mus musculus | ACETYLCHOLINESTERASE | 
| 5owr | 1N1 | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE 10 | 
| 5oy0 | PQN | Synechocystis sp. PCC 6803 | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1;PHOTOSYSTEM I REACTION CENTER SUBUNIT IX | 
| 5oy0 | PQN | Synechocystis sp. PCC 6803 | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 5p9i | 1E8 | Homo sapiens | TYROSINE-PROTEIN KINASE BTK | 
| 5pah | LDP | Homo sapiens | PHENYLALANINE 4-MONOOXYGENASE | 
| 5pbe | TYL | Homo sapiens | BROMODOMAIN ADJACENT TO ZINC FINGER DOMAINPROTEIN 2B | 
| 5phh | LDP | Homo sapiens | LYSINE-SPECIFIC DEMETHYLASE 4D | 
| 5q1s | AWY | Homo sapiens | DNA CROSS-LINK REPAIR 1A PROTEIN | 
| 5qgg | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgj | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgk | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgl | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgm | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgn | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgo | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgp | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgq | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgr | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgt | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgu | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgv | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgw | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgx | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgy | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qgz | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh0 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh1 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh2 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh3 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh4 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh5 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh6 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh7 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh8 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qh9 | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qha | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qhb | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qhc | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qhe | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qhf | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qhg | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qhh | ACT | Homo sapiens | PEROXISOMAL COENZYME A DIPHOSPHATASE NUDT7 | 
| 5qjq | K1S | Homo sapiens | ADP-SUGAR PYROPHOSPHATASE | 
| 5svl | ACT | Homo sapiens | P2X PURINOCEPTOR 3 | 
| 5sxq | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 5sxs | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 5sxt | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 5sye | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 5syf | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 5syi | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 5syj | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 5syo | C5E | Aplysia californica;Homo sapiens | SOLUBLE ACETYLCHOLINE RECEPTOR, NEURONALACETYLCHOLINE RECEPTOR SUBUNIT ALPHA-3CHIMERA | 
| 5t0k | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5t0m | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5t2z | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 5t7b | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 5t8h | 478 | Human immunodeficiency virus 1 | PROTEASE | 
| 5t8s | SAM | Neisseria gonorrhoeae | S-ADENOSYLMETHIONINE SYNTHASE | 
| 5t9v | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5ta3 | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5tal | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5tam | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5tan | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5tap | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5taq | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5tas | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5tat | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5tau | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5tav | CFF | Oryctolagus cuniculus | RYANODINE RECEPTOR 1 | 
| 5tdm | ADN | Homo sapiens | ATP-CITRATE SYNTHASE | 
| 5tdz | ADN | Homo sapiens | ATP-CITRATE SYNTHASE | 
| 5te0 | XIN | Homo sapiens | AP2-ASSOCIATED PROTEIN KINASE 1 | 
| 5te8 | 08J | Homo sapiens | CYTOCHROME P450 3A4 | 
| 5teg | SAM | Homo sapiens | HISTONE H4 MUTANT PEPTIDE WITHH4K20NORLEUCINE;N-LYSINE METHYLTRANSFERASE KMT5A | 
| 5tiw | OAQ | Schistosoma haematobium | SULFOTRANSFERASE | 
| 5tix | OQR | Schistosoma haematobium | SULFOTRANSFERASE | 
| 5tiy | OAQ | Schistosoma haematobium | SULFOTRANSFERASE | 
| 5tjy | BEZ | Mycobacterium tuberculosis | 4-HYDROXY-TETRAHYDRODIPICOLINATE REDUCTASE | 
| 5tjz | BEZ | Mycobacterium tuberculosis | 4-HYDROXY-TETRAHYDRODIPICOLINATE REDUCTASE | 
| 5tl8 | X2N | Naegleria fowleri | PROTEIN CYP51 | 
| 5toa | EST | Homo sapiens | ESTROGEN RECEPTOR BETA | 
| 5tqr | SAM | Chaetomium thermophilum | HISTONE-LYSINE N-METHYLTRANSFERASE EZH2,POLYCOMB PROTEIN SUZ12 | 
| 5trq | ACT | Hapalosiphon welwitschii | WELO5 | 
| 5tt3 | EZL | Helicobacter pylori | ALPHA-CARBONIC ANHYDRASE | 
| 5ttf | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5ttg | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT1 | 
| 5tud | ERM | Escherichia coli;Homo sapiens | 5-HYDROXYTRYPTAMINE RECEPTOR 2B,SOLUBLECYTOCHROME B562 CHIMERA | 
| 5tui | CTC | uncultured bacterium | TETRACYCLINE DESTRUCTASE TET(50) | 
| 5tuy | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5tuz | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT1 | 
| 5twj | SAM | Escherichia coli | RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASEH | 
| 5tzo | 7V7 | Bacillus subtilis | ENDO-1,4-BETA-XYLANASE A | 
| 5u1r | DIF | Homo sapiens | MAIT T-CELL RECEPTOR ALPHA CHAIN;MAIT T-CELL RECEPTOR BETA CHAIN;MAJOR HISTOCOMPATIBILITY COMPLEX CLASSI-RELATED GENE PROTEIN | 
| 5u4s | BEZ | Burkholderia cenocepacia | PUTATIVE SHORT CHAIN DEHYDROGENASE | 
| 5u63 | ACT | Haemophilus influenzae | THIOREDOXIN REDUCTASE | 
| 5u6m | SAL | Arabidopsis thaliana | UDP-GLYCOSYLTRANSFERASE 74F2 | 
| 5u6n | SAL | Arabidopsis thaliana | UDP-GLYCOSYLTRANSFERASE 74F2 | 
| 5u98 | 1KX | Homo sapiens | HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, B-57ALPHA CHAIN;VAL-THR-THR-ASP-ILE-GLN-VAL-LYS-VAL | 
| 5uac | RFP | Escherichia coli | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA | 
| 5uah | RFP | Escherichia coli | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA | 
| 5ual | RFP | Escherichia coli | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA | 
| 5uan | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 5uan | REA | Homo sapiens | RETINOIC ACID RECEPTOR BETA | 
| 5ubb | SAM | Homo sapiens | ALPHA N-TERMINAL PROTEIN METHYLTRANSFERASE 1B | 
| 5uc1 | 486 | Heterocephalus glaber | GLUCOCORTICOID RECEPTOR | 
| 5uc3 | 486 | Homo sapiens | GLUCOCORTICOID RECEPTOR | 
| 5uh6 | RFP | Mycobacterium tuberculosis | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA;RNA POLYMERASE SIGMA FACTOR SIGA | 
| 5uhb | RFP | Mycobacterium tuberculosis | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA | 
| 5uhc | RFP | Mycobacterium tuberculosis | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA;RNA POLYMERASE SIGMA FACTOR SIGA | 
| 5uhd | RFP | Mycobacterium tuberculosis | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA | 
| 5uhg | RFP | Mycobacterium tuberculosis | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA | 
| 5uig | EDT | Escherichia coli;Homo sapiens | ADENOSINE RECEPTOR A2A,SOLUBLE CYTOCHROMEB562,ADENOSINE RECEPTOR A2A | 
| 5uih | 8CV | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 5uiz | CU | Thermobifida fusca | AA10A | 
| 5ujx | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 5ul4 | SAM | Bacillus megaterium | OXSB PROTEIN | 
| 5umd | YMZ | Plasmodium falciparum | 28S RIBOSOMAL RNA;60S RIBOSOMAL PROTEIN L28;60S RIBOSOMAL PROTEIN L4 | 
| 5umd | YMZ | Plasmodium falciparum | 60S RIBOSOMAL PROTEIN L13, PUTATIVE | 
| 5umw | RBF | Streptomyces sp. CB03234 | GLYOXALASE/BLEOMYCIN RESISANCEPROTEIN/DIOXYGENASE | 
| 5umx | RBF | Streptomyces sp. CB03234 | GLYOXALASE/BLEOMYCIN RESISANCEPROTEIN/DIOXYGENASE | 
| 5unr | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uns | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5unt | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5unu | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5unv | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5unw | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5unx | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uny | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5unz | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uo0 | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uo1 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uo2 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uo3 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uo4 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uo5 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uo6 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uo7 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5uo8 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5uo9 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5uoc | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5uod | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5upd | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE NSD3 | 
| 5us8 | ADN | Bordetella pertussis | ARGININOSUCCINATE SYNTHASE | 
| 5utu | ADN | Cryptosporidium parvum | ADENOSYLHOMOCYSTEINASE | 
| 5uun | ACT | Novosphingobium aromaticivorans | GLUTATHIONE S-TRANSFERASE-LIKE PROTEIN | 
| 5uvm | ADN | Ruminiclostridium thermocellum | HISTIDINE TRIAD (HIT) PROTEIN | 
| 5uw4 | GCS | Saccharomyces cerevisiae | GLYCOGEN [STARCH] SYNTHASE ISOFORM 2 | 
| 5uwc | EDT | Homo sapiens | INTERLEUKIN-3 RECEPTOR SUBUNIT ALPHA | 
| 5uxc | ZIT | Brachybacterium faecium | PREDICTED AMINOGLYCOSIDE PHOSPHOTRANSFERASE | 
| 5uxd | ZIT | Brachybacterium faecium | MACROLIDE 2'-PHOSPHOTRANSFERASE MPHH | 
| 5v02 | 657 | Homo sapiens | CALMODULIN-1;SMALL CONDUCTANCE CALCIUM-ACTIVATED POTASSIUMCHANNEL PROTEIN 2 | 
| 5v0i | TRP | Escherichia coli | TRYPTOPHAN--TRNA LIGASE | 
| 5v0v | 8QP | Equus caballus | SERUM ALBUMIN | 
| 5v0v | 8QS | Equus caballus | SERUM ALBUMIN | 
| 5v1s | SAM | Streptococcus suis | RADICAL SAM | 
| 5v1t | SAM | Streptococcus suis | RADICAL SAM | 
| 5v21 | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SETD2 | 
| 5v37 | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SMYD3 | 
| 5v3c | AMH | Zymomonas mobilis | QUEUINE TRNA-RIBOSYLTRANSFERASE | 
| 5v3d | FCN | Klebsiella pneumoniae | FOSFOMYCIN RESISTANCE PROTEIN | 
| 5v3h | SAM | Homo sapiens | N-LYSINE METHYLTRANSFERASE SMYD2 | 
| 5v4v | NCA | Saccharomyces cerevisiae | NADPH DEHYDROGENASE 3 | 
| 5v5z | 1YN | Candida albicans | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 5v96 | ADN | Naegleria fowleri | S-ADENOSYL-L-HOMOCYSTEINE HYDROLASE | 
| 5v9i | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5v9j | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT1 | 
| 5vc0 | RIT | Homo sapiens | CYTOCHROME P450 3A4 | 
| 5vc3 | DB8 | Homo sapiens | WEE1-LIKE PROTEIN KINASE | 
| 5vce | RIT | Homo sapiens | CYTOCHROME P450 3A4 | 
| 5vcg | 08Y | Homo sapiens | CYTOCHROME P450 3A4 | 
| 5vcv | 1N1 | Homo sapiens | MEMBRANE-ASSOCIATED TYROSINE- ANDTHREONINE-SPECIFIC CDC2-INHIBITORY KINASE | 
| 5vcy | DB8 | Homo sapiens | MEMBRANE-ASSOCIATED TYROSINE- ANDTHREONINE-SPECIFIC CDC2-INHIBITORY KINASE | 
| 5vdh | IVM | Homo sapiens | GLYCINE RECEPTOR SUBUNIT ALPHA-3 | 
| 5vdi | IVM | Homo sapiens | GLYCINE RECEPTOR SUBUNIT ALPHA-3 | 
| 5veu | RIT | Homo sapiens | CYTOCHROME P450 3A5 | 
| 5vim | SAM | Zika virus | METHYLTRANSFERASE | 
| 5vkq | PCF | Drosophila melanogaster | NO MECHANORECEPTOR POTENTIAL C ISOFORM L | 
| 5vlm | CVI | [Enterobacter] lignolyticus | REGULATORY PROTEIN TETR | 
| 5vm8 | SAM | Neisseria gonorrhoeae | RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASEE | 
| 5vnc | GCS | Saccharomyces cerevisiae | GLYCOGEN [STARCH] SYNTHASE ISOFORM 2 | 
| 5vof | RIV | Homo sapiens | COAGULATION FACTOR X | 
| 5voo | C2F | Thermus thermophilus | 5-METHYLTETRAHYDROFOLATE HOMOCYSTEINES-METHYLTRANSFERASE | 
| 5vop | C2F | Thermus thermophilus | 5-METHYLTETRAHYDROFOLATE HOMOCYSTEINES-METHYLTRANSFERASE | 
| 5vsc | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5vsd | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT1 | 
| 5vse | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT2 | 
| 5vsf | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE EHMT1 | 
| 5vui | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuj | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuk | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vul | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vum | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vun | ACT | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vun | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vun | MTL | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuo | ACT | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuo | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuo | MTL | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vup | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuq | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vur | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vus | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vut | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuu | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuv | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuw | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vux | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuy | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vuz | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vv0 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vv1 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vv2 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vv3 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vv4 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vv5 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 5vv6 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vv7 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vv8 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vv9 | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vva | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vvb | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vvc | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vvd | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vvg | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vvn | H4B | Bos taurus | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 5vw3 | ACT | Zea mays | FERREDOXIN--NADP REDUCTASE | 
| 5vw4 | NCA | Zea mays | FERREDOXIN--NADP REDUCTASE | 
| 5vw5 | NCA | Zea mays | FERREDOXIN--NADP REDUCTASE | 
| 5vw9 | ACT | Zea mays | FERREDOXIN--NADP REDUCTASE | 
| 5vw9 | NCA | Zea mays | FERREDOXIN--NADP REDUCTASE | 
| 5vyh | FOL | Middle East respiratory syndrome-relatedcoronavirus | S PROTEIN | 
| 5w3j | TA1 | Saccharomyces cerevisiae | TUBULIN BETA CHAIN | 
| 5w4z | RBF | Herbiconiux | RIBOFLAVIN LYASE | 
| 5w5v | ANW | Homo sapiens | SERINE/THREONINE-PROTEIN KINASE TBK1 | 
| 5w7b | PA1 | Oryctolagus cuniculus | ACYLOXYACYL HYDROLASE LARGE SUBUNIT;ACYLOXYACYL HYDROLASE SMALL SUBUNIT | 
| 5w7p | SAM | Penicillium oxalicum | OXAC | 
| 5w8a | SAM | Bradyrhizobium japonicum | AUTOINDUCER SYNTHASE | 
| 5w97 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5w97 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5w97 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5w97 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5w97 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5wau | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5wau | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5wau | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5wau | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5wau | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5wbv | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE KMT5B | 
| 5wea | IPH | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 5weo | CYZ | Mus musculus;Rattus norvegicus | GLUTAMATE RECEPTOR 2,VOLTAGE-DEPENDENTCALCIUM CHANNEL GAMMA-2 SUBUNIT CHIMERA | 
| 5wgd | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 5wgg | SAM | Hungateiclostridium thermocellum | RADICAL SAM DOMAIN PROTEIN | 
| 5wgq | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 5why | SAM | Hungateiclostridium thermocellum | RADICAL SAM DOMAIN PROTEIN | 
| 5wk9 | CAM | Pseudomonas putida | CAMPHOR 5-MONOOXYGENASE | 
| 5wm2 | ACT | Streptomyces gandocaensis | SALICYLATE-AMP LIGASE | 
| 5wm2 | SAL | Streptomyces gandocaensis | SALICYLATE-AMP LIGASE | 
| 5wm7 | ACT | Streptomyces gandocaensis | SALICYLATE-AMP LIGASE | 
| 5wp1 | BEZ | Homo sapiens | MITOGEN-ACTIVATED PROTEIN KINASE 1 | 
| 5wqp | NCA | Pseudomonas aeruginosa | PROBABLE DEHYDROGENASE | 
| 5wws | SAM | Homo sapiens | PUTATIVE METHYLTRANSFERASE NSUN6 | 
| 5wy0 | SAM | Homo sapiens | SMALL RNA 2'-O-METHYLTRANSFERASE | 
| 5wyq | SAM | Pseudomonas aeruginosa | TRNA (GUANINE-N(1)-)-METHYLTRANSFERASE | 
| 5wz1 | SAM | Zika virus | NS5 METHYLTRANSFERASE | 
| 5wz2 | SAM | Zika virus | NS5 MTASE | 
| 5x19 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5x19 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5x19 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5x19 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5x19 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5x19 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5x1b | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5x1b | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5x1b | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5x1b | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5x1b | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5x1f | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5x1f | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5x1f | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5x1f | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5x1f | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5x1f | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5x23 | LSN | Homo sapiens | CYTOCHROME P450 2C9 | 
| 5x24 | LSN | Homo sapiens | CYTOCHROME P450 2C9 | 
| 5x2s | PEM | Homo sapiens | HEMOGLOBIN SUBUNIT ALPHA;HEMOGLOBIN SUBUNIT BETA | 
| 5x2t | PEM | Homo sapiens | HEMOGLOBIN SUBUNIT ALPHA;HEMOGLOBIN SUBUNIT BETA | 
| 5x5q | D16 | Homo sapiens | THYMIDYLATE SYNTHASE | 
| 5x66 | MTX | Homo sapiens | THYMIDYLATE SYNTHASE | 
| 5x6y | SAM | Rice dwarf virus | MRNA CAPPING ENZYME P5 | 
| 5x7f | SAM | Mycobacterium tuberculosis | PUTATIVE O-METHYLTRANSFERASE RV1220C | 
| 5x7p | ACR | Paenibacillus sp. 598K | GLYCOSIDE HYDROLASE FAMILY 31ALPHA-GLUCOSIDASE | 
| 5x7q | ACR | Paenibacillus sp. 598K | GLYCOSIDE HYDROLASE FAMILY 31ALPHA-GLUCOSIDASE | 
| 5x7r | ACR | Paenibacillus sp. 598K | GLYCOSIDE HYDROLASE FAMILY 31ALPHA-GLUCOSIDASE | 
| 5x7z | BHA | Mycobacterium tuberculosis | UNCHARACTERIZED HTH-TYPE TRANSCRIPTIONALREGULATOR RV2887 | 
| 5x80 | SAL | Mycobacterium tuberculosis | UNCHARACTERIZED HTH-TYPE TRANSCRIPTIONALREGULATOR RV2887 | 
| 5xdh | DAH | Candidatus Jettenia caeni | PUTATIVE CYTOCHROME C | 
| 5xdq | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5xdq | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5xdq | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5xdq | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5xdq | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5xdx | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5xdx | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5xdx | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT VIIA-HEART | 
| 5xdx | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT VIIA-HEART | 
| 5xdx | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5xim | SOR | Actinoplanes missouriensis | D-XYLOSE ISOMERASE | 
| 5xio | HFG | Cryptosporidium parvum | PROLINE-TRNA SYNTHETASE CLASS II AARS (YBAKRNA BINDING DOMAIN PLUS TRNA SYNTHETASE) | 
| 5xip | HFG | Eimeria tenella | PROLYL-TRNA SYNTHETASE, PUTATIVE | 
| 5xiq | HFG | Toxoplasma gondii | PROLYL-TRNA SYNTHETASE (PRORS) | 
| 5xiw | LOC | Sus scrofa | TUBULIN ALPHA-1B CHAIN;TUBULIN BETA CHAIN | 
| 5xoo | ADN | Hydra vulgaris | GLYCOSAMINOGLYCAN XYLOSYLKINASE | 
| 5xpr | K86 | Escherichia virus T4;Homo sapiens | ENDOTHELIN B RECEPTOR,ENDOLYSIN,ENDOTHELIN BRECEPTOR | 
| 5xu8 | DX4 | Homo sapiens | UBIQUITIN CARBOXYL-TERMINAL HYDROLASE 2 | 
| 5xv7 | EMH | Homo sapiens | SERINE-ARGININE (SR) PROTEIN KINASE 1 | 
| 5xxd | SAM | Homo sapiens | SMYD3 METHYLTRANSFERASE | 
| 5xxg | SAM | Homo sapiens | SMYD3 | 
| 5xxi | LSN | Homo sapiens | CYTOCHROME P450 2C9 | 
| 5xxj | SAM | Homo sapiens | SMYD3 | 
| 5y1y | HNQ | Homo sapiens | BROMODOMAIN-CONTAINING PROTEIN 4 | 
| 5y2o | 8N6 | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 5y2t | 8LX | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 5y7p | CHD | Lactobacillus salivarius | BILE SALT HYDROLASE | 
| 5y7z | IRE | Homo sapiens | CYCLIN-G-ASSOCIATED KINASE | 
| 5y80 | IRE | Homo sapiens | CYCLIN-G-ASSOCIATED KINASE | 
| 5y9a | AR3 | Acinetobacter baumannii | PEPTIDYL-TRNA HYDROLASE | 
| 5y9m | NIO | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA' | 
| 5y9y | ACT | Methylacidiphilum infernorum | UNCHARACTERIZED PROTEIN KDOO | 
| 5ybb | SAM | Caldanaerobacter subterraneus | TYPE I RESTRICTION-MODIFICATION SYSTEMMETHYLTRANSFERASE SUBUNIT | 
| 5ycn | 8LX | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 5ycp | BRL | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 5yf0 | ACT | Homo sapiens | CARNOSINE N-METHYLTRANSFERASE | 
| 5yf0 | SAM | Homo sapiens | CARNOSINE N-METHYLTRANSFERASE | 
| 5yf9 | NIO | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA' | 
| 5yiz | EF2 | Mus musculus | PROTEIN CEREBLON | 
| 5yj0 | EF2 | Mus musculus | PROTEIN CEREBLON | 
| 5yj1 | 6EL | Mus musculus | PROTEIN CEREBLON | 
| 5yjo | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE SMYD3 | 
| 5yjs | SAL | Capsicum annuum | VICILIN-LIKE ANTIMICROBIAL PEPTIDES 2-2 | 
| 5yk2 | ERY | Mycobacterium tuberculosis | PROBABLE CONSERVED ATP-BINDING PROTEIN ABCTRANSPORTER | 
| 5yke | GBM | Mesocricetus auratus | ATP-BINDING CASSETTE SUB-FAMILY C MEMBER 8ISOFORM X2 | 
| 5ykf | GBM | Mesocricetus auratus | ATP-BINDING CASSETTE SUB-FAMILY C MEMBER 8ISOFORM X2 | 
| 5ykg | GBM | Mesocricetus auratus | ATP-BINDING CASSETTE SUB-FAMILY C MEMBER 8ISOFORM X2 | 
| 5yn6 | SAM | Middle East respiratory syndrome-relatedcoronavirus | NSP16 PROTEIN | 
| 5yni | SAM | Middle East respiratory syndrome-relatedcoronavirus | NSP16 PROTEIN | 
| 5ynm | SAM | Middle East respiratory syndrome-relatedcoronavirus | NSP16 PROTEIN | 
| 5yod | BEZ | Zika virus | NS3 PROTEASE | 
| 5ysi | NCA | Legionella pneumophila | UBIQUITINATING/DEUBIQUITINATING ENZYME SDEA | 
| 5yu9 | 1E8 | Homo sapiens | EPIDERMAL GROWTH FACTOR RECEPTOR | 
| 5yvn | ACT | Homo sapiens | GLUTATHIONE S-TRANSFERASE OMEGA-1 | 
| 5yw0 | ACT | Methylacidiphilum infernorum | UNCHARACTERIZED PROTEIN KDOO | 
| 5yw7 | GBM | Mesocricetus auratus | ATP-BINDING CASSETTE SUB-FAMILY C MEMBER 8ISOFORM X2 | 
| 5ywm | NIO | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA' | 
| 5z0f | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 5z0g | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 5z0h | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 5z0i | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 5z0j | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 5z0k | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 5z0l | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 5z0m | DAH | Streptomyces castaneoglobisporus | MELC;TYROSINASE | 
| 5z12 | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 5z3j | NCA | Abrus precatorius | ABRIN A-CHAIN | 
| 5z6f | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 5z6j | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 5z6k | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 5z6l | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 5z6m | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 5z84 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5z84 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5z84 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5z84 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5z84 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5z84 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5z85 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5z85 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5z85 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5z85 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5z86 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5z86 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5z86 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5z86 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5z86 | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5z86 | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5zbd | TRP | Chromobacterium violaceum | FLAVIN-DEPENDENT L-TRYPTOPHAN OXIDASE VIOA | 
| 5zco | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5zco | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5zco | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5zco | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5zco | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5zcp | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5zcp | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5zcp | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5zcp | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5zcp | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5zcq | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 5zcq | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 5zcq | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5zcq | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 5zcq | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 5zf0 | PQN | - | - | 
| 5zgb | PQN | Cyanidioschyzon merolae | PSAA;PSAJ | 
| 5zgb | PQN | Cyanidioschyzon merolae | PSAB | 
| 5zgh | PQN | Cyanidioschyzon merolae | PSAA;PSAJ | 
| 5zgh | PQN | Cyanidioschyzon merolae | PSAB | 
| 5zhm | SAM | Pseudomonas aeruginosa | TRNA (GUANINE-N(1)-)-METHYLTRANSFERASE | 
| 5zj8 | 9DC | Klebsiella pneumoniae | METALLO-BETA-LACTAMASE TYPE 2 | 
| 5zji | PQN | Zea mays | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1;PHOTOSYSTEM I REACTION CENTER SUBUNIT IX | 
| 5zji | PQN | Zea mays | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 5zlg | ASC | Homo sapiens | CYTOCHROME B REDUCTASE 1 | 
| 5zmq | PAC | Zika virus;synthetic construct | SERINE PROTEASE NS3;PEPTIDE PAC-DLY-DLY-DAR | 
| 5zmq | PAC | Zika virus;synthetic construct | SERINE PROTEASE NS3;SERINE PROTEASE SUBUNIT NS2B;PEPTIDE PAC-DLY-DLY-DAR | 
| 5znc | QI9 | Plasmodium falciparum | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 5zni | YMZ | Plasmodium falciparum | PURINE NUCLEOSIDE PHOSPHORYLASE | 
| 5zov | ASC | Pasteurella multocida | PTS ASCORBATE-SPECIFIC SUBUNIT IIBC | 
| 5zrd | CU | Burkholderia thailandensis | TYROSINASE | 
| 5zrf | EVP | ||
| 5zsf | 6T0 | Macaca mulatta | TOLL-LIKE RECEPTOR 7 | 
| 5zv2 | LEV | Homo sapiens | FIBROBLAST GROWTH FACTOR RECEPTOR 1 | 
| 5zvg | SAM | Pyrococcus horikoshii | 389AA LONG HYPOTHETICAL NUCLEOLAR PROTEIN | 
| 5zw2 | ACT | Serratia sp. ATCC 39006 | L-PROLYL-[PEPTIDYL-CARRIER PROTEIN]DEHYDROGENASE | 
| 5zw4 | SAM | Bacillus subtilis | PUTATIVE O-METHYLTRANSFERASE YRRM | 
| 5zwr | 9KL | metagenome | EST-Y29 | 
| 6a4i | TRP | Homo sapiens | TRYPTOPHAN 2,3-DIOXYGENASE | 
| 6a5k | SAM | Arabidopsis thaliana | HISTONE-LYSINE N-METHYLTRANSFERASE, H3LYSINE-9 SPECIFIC SUVH6 | 
| 6a5m | SAM | Arabidopsis thaliana | HISTONE-LYSINE N-METHYLTRANSFERASE, H3LYSINE-9 SPECIFIC SUVH6 | 
| 6a5y | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 6a5z | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 6a60 | 9CR | Homo sapiens | RETINOIC ACID RECEPTOR RXR-ALPHA | 
| 6a7j | TES | Streptomyces violaceoruber | CYTOCHROME P450 | 
| 6a7p | 9SC | Homo sapiens | SERUM ALBUMIN | 
| 6a93 | 8NU | Escherichia coli;Homo sapiens | 5-HYDROXYTRYPTAMINE RECEPTOR 2A,SOLUBLECYTOCHROME B562 | 
| 6a94 | ZOT | Escherichia coli;Homo sapiens | 5-HYDROXYTRYPTAMINE RECEPTOR 2A,SOLUBLECYTOCHROME B562 | 
| 6af6 | GLY | Serratia sp. ATCC 39006 | L-PROLYL-[PEPTIDYL-CARRIER PROTEIN]DEHYDROGENASE | 
| 6ag0 | ACR | Geobacillus stearothermophilus | ALPHA-AMYLASE | 
| 6agg | AG2 | Archaeoglobus fulgidus | TRNA(ILE2) 2-AGMATINYLCYTIDINE SYNTHETASETIAS | 
| 6ago | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE ASH1L | 
| 6aji | AY6 | Mycolicibacterium smegmatis;Escherichia virus T4 | DRUG EXPORTERS OF THE RND SUPERFAMILY-LIKEPROTEIN,ENDOLYSIN | 
| 6ak3 | P2E | Escherichia coli;Homo sapiens | PROSTAGLANDIN E2 RECEPTOR EP3 SUBTYPE,SOLUBLECYTOCHROME B562 | 
| 6an0 | HIS | Elizabethkingia anophelis | HISTIDINOL DEHYDROGENASE | 
| 6aog | CP6 | Toxoplasma gondii | BIFUNCTIONAL DIHYDROFOLATEREDUCTASE-THYMIDYLATE SYNTHASE | 
| 6ap6 | TLF | Petunia x hybrida | PROBABLE STRIGOLACTONE ESTERASE DAD2 | 
| 6ap9 | ACT | Homo sapiens | GLUTATHIONE S-TRANSFERASE P | 
| 6aph | ADN | Elizabethkingia anophelis | ADENOSYLHOMOCYSTEINASE | 
| 6auq | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6aur | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6aus | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6aut | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6auu | ACT | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6auu | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6auu | MTL | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6auv | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6auw | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6aux | H4B | Rattus norvegicus | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6auy | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6auz | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6av0 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6av1 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6av2 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6av3 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6av4 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6av5 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6av6 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 6av7 | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 6awn | 8PR | Homo sapiens | SODIUM-DEPENDENT SEROTONIN TRANSPORTER | 
| 6awo | SRE | Homo sapiens | SODIUM-DEPENDENT SEROTONIN TRANSPORTER | 
| 6awp | FVX | Homo sapiens | SODIUM-DEPENDENT SEROTONIN TRANSPORTER | 
| 6awq | SRE | Homo sapiens | SODIUM-DEPENDENT SEROTONIN TRANSPORTER | 
| 6awt | BEZ | Arachis hypogaea | PR 10 PROTEIN | 
| 6awv | BEZ | Arachis hypogaea | ARA H 8 ALLERGEN | 
| 6ay4 | TPF | Naegleria fowleri | CYP51, STEROL 14ALPHA-DEMETHYLASE | 
| 6ay6 | VOR | Naegleria fowleri | CYP51, STEROL 14ALPHA-DEMETHYLASE | 
| 6ayb | KKK | Naegleria fowleri | CYP51, STEROL 14ALPHA-DEMETHYLASE | 
| 6ayc | 1YN | Naegleria fowleri | PROTEIN CYP51 | 
| 6az3 | PAR | Leishmania donovani | RIBOSOMAL PROTEIN EL15;RIBOSOMAL PROTEIN UL15;RIBOSOMAL PROTEIN UL4;RRNA ALPHA | 
| 6az3 | PAR | Leishmania donovani | RIBOSOMAL PROTEIN EL18;RRNA ALPHA | 
| 6b0c | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 6b0i | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 6b0l | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 6b1e | LF7 | Homo sapiens | DIPEPTIDYL PEPTIDASE 4 | 
| 6b2w | AG2 | Campylobacter jejuni | PUTATIVE PEPTIDYL-ARGININE DEIMINASE FAMILYPROTEIN | 
| 6b3a | SAM | Moorea bouillonii | APRA METHYLTRANSFERASE 1 | 
| 6b3b | SAM | Moorea bouillonii | APRA METHYLTRANSFERASE 1 | 
| 6b4y | OAQ | Schistosoma mansoni | SULFOTRANSFERASE OXAMNIQUINE RESISTANCEPROTEIN | 
| 6b50 | OAQ | Schistosoma mansoni | SULFOTRANSFERASE OXAMNIQUINE RESISTANCEPROTEIN | 
| 6b52 | OAQ | Schistosoma haematobium | SULFOTRANSFERASE | 
| 6b54 | OAQ | Schistosoma haematobium | SULFOTRANSFERASE | 
| 6b58 | ACT | Escherichia coli | FUMARATE REDUCTASE FLAVOPROTEIN SUBUNIT | 
| 6b5v | ECL | Oryctolagus cuniculus | TRANSIENT RECEPTOR POTENTIAL CATION CHANNELSUBFAMILY V MEMBER 5 | 
| 6b5y | 9F2 | Mycobacterium tuberculosis | BETA-LACTAMASE | 
| 6b68 | 9F2 | Mycobacterium tuberculosis | BETA-LACTAMASE | 
| 6b69 | 9F2 | Mycobacterium tuberculosis | BETA-LACTAMASE | 
| 6b6a | 9F2 | Mycobacterium tuberculosis | BETA-LACTAMASE | 
| 6b6c | 9F2 | Mycobacterium tuberculosis | BETA-LACTAMASE | 
| 6b6d | 9F2 | Mycobacterium tuberculosis | BETA-LACTAMASE | 
| 6b6e | 9F2 | Mycobacterium tuberculosis | BETA-LACTAMASE | 
| 6b6f | 9F2 | Mycobacterium tuberculosis | BETA-LACTAMASE | 
| 6b82 | AER | Danio rerio | CYTOCHROME P450, FAMILY 17, SUBFAMILY A,POLYPEPTIDE 1 | 
| 6b89 | NOV | Escherichia coli | LIPOPOLYSACCHARIDE EXPORT SYSTEM ATP-BINDINGPROTEIN LPTB | 
| 6b8k | W9T | Homo sapiens | GALECTIN-3 | 
| 6b94 | W9T | Homo sapiens | GALECTIN-1 | 
| 6baa | GBM | Cricetus cricetus | ATP-BINDING CASSETTE SUB-FAMILY C MEMBER 8 | 
| 6bbs | BZ1 | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 6bc9 | ETS | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 6bcc | EZL | Homo sapiens | CARBONIC ANHYDRASE 2 | 
| 6bec | RBT | Vaccinia virus | SCAFFOLD PROTEIN D13 | 
| 6bed | RFP | Vaccinia virus | SCAFFOLD PROTEIN D13 | 
| 6bee | RXM | Vaccinia virus | SCAFFOLD PROTEIN D13 | 
| 6beh | RPT | Vaccinia virus | SCAFFOLD PROTEIN D13 | 
| 6beo | DHI | Homo sapiens | (DPR)PY(DHI)PKDL(DGN) | 
| 6ber | DVA | Homo sapiens | E(DVA)DP(DGL)(DHI)(DPR)N(DAL)(DPR) | 
| 6bfh | KAN | Escherichia coli | AMINOGLYCOSIDE ACETYLTRANSFERASE | 
| 6bkk | 308 | Influenza A virus | MATRIX PROTEIN 2 | 
| 6bkl | EU7 | Influenza A virus | MATRIX PROTEIN 2 | 
| 6bkl | RIM | Influenza A virus | MATRIX PROTEIN 2 | 
| 6bm5 | SAM | Escherichia coli | METHIONINE SYNTHASE | 
| 6bni | ADN | Cryptosporidium parvum | LYSINE--TRNA LIGASE | 
| 6boc | EU7 | Influenza A virus | MATRIX PROTEIN 2 | 
| 6boc | RIM | Influenza A virus | MATRIX PROTEIN 2 | 
| 6bp4 | SAM | Schizosaccharomyces pombe | HISTONE-LYSINE N-METHYLTRANSFERASE, H3LYSINE-9 SPECIFIC | 
| 6bpl | PA1 | Escherichia coli | LIPID A EXPORT ATP-BINDING/PERMEASE PROTEINMSBA | 
| 6bpy | ACT | Aspergillus fumigatus | THIOREDOXIN REDUCTASE | 
| 6bq4 | ADN | Medicago truncatula | THERMOSPERMINE SYNTHASE ACAULIS PROTEIN | 
| 6bqg | ERM | Escherichia coli;Homo sapiens | 5-HYDROXYTRYPTAMINE RECEPTOR 2C,SOLUBLECYTOCHROME B562 | 
| 6brd | RFP | Streptomyces venezuelae | RIFAMPIN MONOOXYGENASE | 
| 6bsd | 1N1 | Homo sapiens | EPITHELIAL DISCOIDIN DOMAIN-CONTAININGRECEPTOR 1 | 
| 6bsg | EFZ | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE P66 SUBUNIT | 
| 6bsh | EFZ | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE P51 SUBUNIT;REVERSE TRANSCRIPTASE P66 SUBUNIT | 
| 6bsi | EFZ | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE P66 SUBUNIT | 
| 6bsj | EFZ | Human immunodeficiency virus 1 | REVERSE TRANSCRIPTASE P66 SUBUNIT | 
| 6btx | EDT | Bdellovibrio bacteriovorus | SOLUTE CARRIER FAMILY 39 (IRON-REGULATEDTRANSPORTER) | 
| 6bxl | SAM | Pyrococcus horikoshii | 2-(3-AMINO-3-CARBOXYPROPYL)HISTIDINE SYNTHASE | 
| 6bxm | SAM | Candidatus Methanoperedens nitroreducens | DIPHTHAMIDE BIOSYNTHESIS ENZYME DPH2 | 
| 6bxn | SAM | Candidatus Methanoperedens nitroreducens | DIPHTHAMIDE BIOSYNTHESIS ENZYME DPH2 | 
| 6bzo | FI8 | Mycobacterium tuberculosis | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA;DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA';RNA POLYMERASE SIGMA FACTOR SIGA;RNA POLYMERASE-BINDING PROTEIN RBPA | 
| 6c06 | FI8 | Mycobacterium tuberculosis | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA;DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA';RNA POLYMERASE SIGMA FACTOR SIGA;RNA POLYMERASE-BINDING PROTEIN RBPA | 
| 6c2m | SUE | Hepacivirus C | NS3 PROTEASE | 
| 6c5u | RIO | Staphylococcus aureus | BIFUNCTIONAL AAC/APH | 
| 6c71 | NCT | Pseudomonas putida | AMINE OXIDASE | 
| 6c79 | CE3 | Escherichia coli | BETA-LACTAMASE TOHO-1 | 
| 6c9x | VOG | Blautia obeum | GLYCOSYL HYDROLASE, FAMILY 31 | 
| 6c9z | VOG | Blautia obeum | GLYCOSYL HYDROLASE, FAMILY 31 | 
| 6ca1 | MIG | Blautia obeum | GLYCOSYL HYDROLASE, FAMILY 31 | 
| 6ca3 | MIG | Blautia obeum | GLYCOSYL HYDROLASE, FAMILY 31 | 
| 6cb4 | BEZ | Canavalia ensiformis | CANAVALIN | 
| 6cbd | TRP | Homo sapiens | PROTEIN ARGONAUTE-2 | 
| 6cbz | EST | Homo sapiens | ESTROGEN RECEPTOR | 
| 6ccv | RFP | ||
| 6cdq | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 6cdu | EY4 | Homo sapiens;Dickeya dadantii | CHIMERIC ALPHA1GABAA RECEPTOR | 
| 6ce2 | SVR | ||
| 6cen | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE NSD3 | 
| 6cfq | NIZ | Burkholderia pseudomallei | CATALASE-PEROXIDASE | 
| 6cgd | AKN | Staphylococcus aureus | BIFUNCTIONAL AAC/APH | 
| 6cgg | 84G | Staphylococcus aureus | BIFUNCTIONAL AAC/APH | 
| 6chg | SAM | Homo sapiens;Kluyveromyces lactis | H3;HISTONE-LYSINE N-METHYLTRANSFERASE, H3LYSINE-4 SPECIFIC | 
| 6ci6 | NBO | Equus caballus | SERUM ALBUMIN | 
| 6cic | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6cid | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, BRAIN | 
| 6cie | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 6cif | H4B | Homo sapiens | NITRIC OXIDE SYNTHASE, ENDOTHELIAL | 
| 6cjk | ACT | Oryctolagus cuniculus | IMMUNOGLOBULIN FAB HEAVY CHAIN | 
| 6cjk | ACT | Oryctolagus cuniculus | IMMUNOGLOBULIN FAB LIGHT CHAIN | 
| 6ck2 | IPH | Homo sapiens | INSULIN A CHAIN;INSULIN B CHAIN | 
| 6clx | SAM | Streptomyces sp. CB03234 | O-METHYLTRANSFERASE | 
| 6cm4 | 8NU | Homo sapiens;Escherichia virus T4 | D(2) DOPAMINE RECEPTOR, ENDOLYSIN CHIMERA | 
| 6cnj | NCT | Homo sapiens | NEURONAL ACETYLCHOLINE RECEPTOR SUBUNITALPHA-4;NEURONAL ACETYLCHOLINE RECEPTOR SUBUNITBETA-2 | 
| 6cnk | NCT | Homo sapiens | NEURONAL ACETYLCHOLINE RECEPTOR SUBUNITALPHA-4 | 
| 6cnk | NCT | Homo sapiens | NEURONAL ACETYLCHOLINE RECEPTOR SUBUNITALPHA-4;NEURONAL ACETYLCHOLINE RECEPTOR SUBUNITBETA-2 | 
| 6cp4 | CAM | Pseudomonas putida | CYTOCHROME P450CAM | 
| 6cr0 | ACT | Shinella sp. HZN7 | (S)-6-HYDROXYNICOTINE OXIDASE | 
| 6czm | HIS | Medicago truncatula | ATP PHOSPHORIBOSYLTRANSFERASE CATALYTICSUBUNIT | 
| 6d6t | FYP | Homo sapiens | GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNITALPHA-1,GAMMA-AMINOBUTYRIC ACID RECEPTORSUBUNIT ALPHA-1;HUMAN GABA-A RECEPTOR SUBUNIT GAMMA-2 | 
| 6d6u | FYP | Homo sapiens | GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNITALPHA-1,GAMMA-AMINOBUTYRIC ACID RECEPTORSUBUNIT ALPHA-1;GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNITGAMMA-2,GAMMA-AMINOBUTYRIC ACID RECEPTORSUBUNIT GAMMA-2 | 
| 6d8a | ACT | Rhodobacter sphaeroides | UNCHARACTERIZED PROTEIN | 
| 6d8f | ACT | Rhodobacter sphaeroides | UNCHARACTERIZED PROTEIN | 
| 6d8p | ACT | Rhodobacter sphaeroides | UNCHARACTERIZED PROTEIN | 
| 6d9h | ADN | Homo sapiens | CHIMERA PROTEIN OF MUSCARINIC ACETYLCHOLINERECEPTOR M4 AND ADENOSINE RECEPTOR A1 | 
| 6d9k | ACT | Rhodobacter sphaeroides | UNCHARACTERIZED PROTEIN | 
| 6dch | ACT | Streptomyces coeruleorubidus | SCOE PROTEIN | 
| 6deb | MTX | Campylobacter jejuni | BIFUNCTIONAL PROTEIN FOLD | 
| 6dgx | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 6dh0 | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 6dh3 | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 6dh6 | 017 | Human immunodeficiency virus 1 | PROTEASE | 
| 6dhb | BEZ | Homo sapiens | HEPATITIS A VIRUS CELLULAR RECEPTOR 2 | 
| 6dif | TPV | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 6dil | TPV | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 6dj1 | AB1 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 6dj2 | AB1 | Human immunodeficiency virus 1 | HIV-1 PROTEASE | 
| 6djz | GMJ | Homo sapiens | SIGMA NON-OPIOID INTRACELLULAR RECEPTOR 1 | 
| 6dk1 | GM4 | Homo sapiens | SIGMA NON-OPIOID INTRACELLULAR RECEPTOR 1 | 
| 6dlz | CYZ | Homo sapiens;Rattus norvegicus | GLUTAMATE RECEPTOR 2,VOLTAGE-DEPENDENTCALCIUM CHANNEL GAMMA-2 SUBUNIT | 
| 6dm0 | CYZ | Homo sapiens;Rattus norvegicus | GLUTAMATE RECEPTOR 2,VOLTAGE-DEPENDENTCALCIUM CHANNEL GAMMA-2 SUBUNIT | 
| 6dm1 | CYZ | Homo sapiens;Rattus norvegicus | GLUTAMATE RECEPTOR 2,VOLTAGE-DEPENDENTCALCIUM CHANNEL GAMMA-2 SUBUNIT | 
| 6dm2 | CYZ | Homo sapiens;Rattus norvegicus | GLUTAMATE RECEPTOR 2,VOLTAGE-DEPENDENTCALCIUM CHANNEL GAMMA-2 SUBUNIT | 
| 6drx | H8G | Escherichia coli;Homo sapiens | 5HT2B RECEPTOR, BRIL CHIMERA | 
| 6dry | H8D | Escherichia coli;Homo sapiens | 5HT2B RECEPTOR, BRIL CHIMERA | 
| 6drz | H8J | Escherichia coli;Homo sapiens | 5HT2B RECEPTOR, BRIL CHIMERA | 
| 6dwd | GLY | Homo sapiens | DEOXYNUCLEOSIDE TRIPHOSPHATETRIPHOSPHOHYDROLASE SAMHD1 | 
| 6dwj | GLY | Homo sapiens | DEOXYNUCLEOSIDE TRIPHOSPHATETRIPHOSPHOHYDROLASE SAMHD1 | 
| 6dwn | AQ4 | Homo sapiens | CYTOCHROME P450 1A1 | 
| 6dyn | HSM | Drosophila melanogaster | EBONY | 
| 6dyo | LDP | Drosophila melanogaster | EBONY | 
| 6e43 | BEZ | Homo sapiens | INDOLEAMINE 2,3-DIOXYGENASE 1 | 
| 6e5z | CCS | Homo sapiens | PROTEIN/NUCLEIC ACID DEGLYCASE DJ-1 | 
| 6e8q | X2N | Saccharomyces cerevisiae | LANOSTEROL 14-ALPHA DEMETHYLASE | 
| 6ebp | DAH | Aerococcus urinae | RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE, BETASUBUNIT | 
| 6ebz | DAH | Aerococcus urinae | RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE, BETASUBUNIT | 
| 6ece | DVA | Streptomyces tsusimaensis;synthetic construct | VLM2;DODECADEPSIPEPTIDE | 
| 6ecf | DVA | Streptomyces tsusimaensis;synthetic construct | VLM2;DODECADEPSIPEPTIDE | 
| 6ect | SAM | Stigmatella aurantiaca | STIE PROTEIN | 
| 6ecx | SAM | Stigmatella aurantiaca | STIE PROTEIN | 
| 6ef6 | ACT | Mycolicibacterium smegmatis | AMINOGLYCOSIDE PHOSPHOTRANSFERASE | 
| 6ef6 | BEZ | Mycolicibacterium smegmatis | AMINOGLYCOSIDE PHOSPHOTRANSFERASE | 
| 6efn | SAM | Bacillus subtilis | SPORULATION KILLING FACTOR MATURATION PROTEINSKFB | 
| 6eid | EDT | Chlamydomonas reinhardtii | ARCHAEAL-TYPE OPSIN 2 | 
| 6eku | ZMR | Vibrio cholerae | SIALIDASE | 
| 6ekz | SNP | Agrocybe aegerita | AROMATIC PEROXYGENASE | 
| 6eli | T27 | Human immunodeficiency virus 1 | GAG-POL POLYPROTEIN;REVERSE TRANSCRIPTASE | 
| 6emm | SAL | Homo sapiens | 17-BETA-HYDROXYSTEROID DEHYDROGENASE 14 | 
| 6emu | SAM | Thermococcus kodakarensis | TRNA(GUANINE(9)-/ADENINE(9)-N1)-METHYLTRANSFERASE | 
| 6ep4 | DME | Homo sapiens | CHOLINESTERASE | 
| 6eqp | BUW | Homo sapiens | CHOLINESTERASE | 
| 6esm | PZE | Homo sapiens | MATRIX METALLOPROTEINASE-9,MATRIXMETALLOPROTEINASE-9 | 
| 6eu9 | REA | Platynereis dumerilii | RETINOIC ACID RECEPTOR | 
| 6euq | ACT | Escherichia coli | MULTIDRUG TRANSPORTER MDFA | 
| 6euq | DXC | Escherichia coli | MULTIDRUG TRANSPORTER MDFA | 
| 6ew0 | TA1 | Sus scrofa | TUBULIN BETA CHAIN | 
| 6exi | ADN | Bradyrhizobium elkanii | ADENOSYLHOMOCYSTEINASE | 
| 6f32 | ACT | Streptomyces rochei | AMINE OXIDASE LKCE | 
| 6f3m | ADN | - | - | 
| 6f3n | ADN | - | - | 
| 6f5u | CQN | Zaire ebolavirus | ENVELOPE GLYCOPROTEIN;ENVELOPE GLYCOPROTEIN,ENVELOPEGLYCOPROTEIN,GP1 | 
| 6f6i | 8PR | Zaire ebolavirus | ENVELOPE GLYCOPROTEIN;ENVELOPE GLYCOPROTEIN,GP,GP1 | 
| 6f6j | ACT | Catenulispora acidiphila | L-LYSINE 3-HYDROXYLASE | 
| 6f6n | SRE | Zaire ebolavirus | ENVELOPE GLYCOPROTEIN;ENVELOPE GLYCOPROTEIN,ENVELOPEGLYCOPROTEIN,GP1 | 
| 6f6s | CXQ | Zaire ebolavirus | ENVELOPE GLYCOPROTEIN;ENVELOPE GLYCOPROTEIN,ENVELOPEGLYCOPROTEIN,GP1 | 
| 6f7l | ACT | Streptomyces rochei | AMINE OXIDASE LKCE | 
| 6f88 | STR | Sorangium cellulosum | CYTOCHROME P450 CYP260A1 | 
| 6f8c | STR | Sorangium cellulosum | CYTOCHROME P450 CYP260A1 | 
| 6fbn | SAM | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 6fbo | ADN | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 6fbp | ADN | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 6fbv | FI8 | Mycobacterium tuberculosis | DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA;DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA';RNA POLYMERASE SIGMA FACTOR SIGA | 
| 6fcb | SAM | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 6fcd | ADN | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 6fdy | DB8 | - | - | 
| 6fek | ADN | Homo sapiens | PROTO-ONCOGENE TYROSINE-PROTEIN KINASERECEPTOR RET | 
| 6fgc | ACT | Rattus norvegicus | GEPHYRIN | 
| 6fgc | D95 | Rattus norvegicus | GEPHYRIN | 
| 6fgd | ACT | Rattus norvegicus | GEPHYRIN | 
| 6fgd | D8Z | Rattus norvegicus | GEPHYRIN | 
| 6fhw | ACR | Amorphotheca resinae | GLUCOAMYLASE P | 
| 6fi4 | DVA | Homo sapiens | 14-3-3 PROTEIN SIGMA;PRO-SEP-LEU-PRO-DVA | 
| 6fk2 | SOR | Homo sapiens | GALECTIN-3 | 
| 6fn9 | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 6fna | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 6fnb | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 6fnc | BEZ | Homo sapiens | 14-3-3 PROTEIN ZETA/DELTA | 
| 6fnm | 1N1 | - | - | 
| 6fos | PQN | Cyanidioschyzon merolae | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1 | 
| 6fos | PQN | Cyanidioschyzon merolae | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 6ftp | DM2 | Homo sapiens | ALPHA-1-ANTICHYMOTRYPSIN | 
| 6fu4 | HSM | Pseudomonas aeruginosa | PROBABLE CHEMOTAXIS TRANSDUCER | 
| 6fzb | SRY | Salmonella enterica | STREPTOMYCIN 3''-ADENYLYLTRANSFERASE | 
| 6g1p | ACT | Latimeria chalumnae | ADP-RIBOSYLHYDROLASE LIKE 2 | 
| 6g2p | TRP | Chromobacterium violaceum | FLAVIN-DEPENDENT L-TRYPTOPHAN OXIDASE VIOA | 
| 6g31 | ZOL | Homo sapiens | GERANYLGERANYL PYROPHOSPHATE SYNTHASE | 
| 6g6r | SAM | Homo sapiens | S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2 | 
| 6g95 | RTZ | Zaire ebolavirus | ENVELOPE GLYCOPROTEIN | 
| 6g9b | IXX | Zaire ebolavirus | ENVELOPE GLYCOPROTEIN;ENVELOPE GLYCOPROTEIN,ENVELOPE GLYCOPROTEIN | 
| 6g9i | CXX | Human immunodeficiency virus 1;Zaire ebolavirus | ENVELOPE GLYCOPROTEIN,ENVELOPE GLYCOPROTEIN | 
| 6gb9 | ACT | Arabidopsis thaliana | MOLYBDOPTERIN BIOSYNTHESIS PROTEIN CNX1 | 
| 6gbf | ACT | Arabidopsis thaliana | MOLYBDOPTERIN BIOSYNTHESIS PROTEIN CNX1 | 
| 6gbn | ADN | - | - | 
| 6gh9 | MIX | Homo sapiens | UBIQUITIN CARBOXYL-TERMINAL HYDROLASE 15 | 
| 6giq | CU | Saccharomyces cerevisiae | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 6giq | PCF | Saccharomyces cerevisiae | CYTOCHROME B-C1 COMPLEX SUBUNIT 1,MITOCHONDRIAL;CYTOCHROME B-C1 COMPLEX SUBUNIT 9;CYTOCHROME B-C1 COMPLEX SUBUNIT RIESKE,MITOCHONDRIAL | 
| 6gmd | ACT | Homo sapiens | CASEIN KINASE II SUBUNIT ALPHA | 
| 6gna | ACT | Clostridium acetobutylicum | THIOREDOXIN REDUCTASE | 
| 6gnb | ACT | Clostridium acetobutylicum | THIOREDOXIN REDUCTASE | 
| 6gne | ACR | - | - | 
| 6gnf | QPS | - | - | 
| 6gng | QPS | - | - | 
| 6gnr | 6J3 | Sparus aurata | TRANSTHYRETIN | 
| 6gp2 | DAH | Mesoplasma florum | RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE BETACHAIN | 
| 6gqi | ACT | Thermocrispum municipale | CYCLOHEXANONE MONOOXYGENASE FROMTHERMOCRISPUM MUNICIPALE | 
| 6gs4 | F9E | Escherichia coli | DIPEPTIDE AND TRIPEPTIDE PERMEASE A | 
| 6gsd | STR | Plantago major | PROGESTERONE 5-BETA-REDUCTASE | 
| 6gtq | ACT | Escherichia coli | DUF1778 DOMAIN-CONTAINING PROTEIN;N-ACETYLTRANSFERASE | 
| 6gtq | ACT | Escherichia coli | N-ACETYLTRANSFERASE | 
| 6gz9 | TXC | Staphylococcus hominis | PEPTIDE ABC TRANSPORTER PERMEASE | 
| 6h0f | Y70 | Homo sapiens | IKAROS (IKZF1);PROTEIN CEREBLON | 
| 6h0g | Y70 | Homo sapiens | PROTEIN CEREBLON;ZINC FINGER PROTEIN 692 | 
| 6h1l | FJQ | Bacillus megaterium | BIFUNCTIONAL CYTOCHROME P450/NADPH--P450REDUCTASE | 
| 6h3d | DHI | Staphylococcus aureus | DUF2338 DOMAIN-CONTAINING PROTEIN | 
| 6h7j | 5FW | Meleagris gallopavo | BETA-1 ADRENERGIC RECEPTOR | 
| 6h7l | Y00 | Meleagris gallopavo | BETA-1 ADRENERGIC RECEPTOR | 
| 6h7m | 68H | Meleagris gallopavo | BETA-1 ADRENERGIC RECEPTOR | 
| 6h7u | FVT | Staphylococcus hominis | PEPTIDE ABC TRANSPORTER PERMEASE | 
| 6hau | ACT | Saimiriine gammaherpesvirus 2 | MRNA EXPORT FACTOR ICP27 HOMOLOG | 
| 6hco | FY5 | Homo sapiens | ATP-BINDING CASSETTE SUB-FAMILY G MEMBER 2 | 
| 6hcx | ZMR | Influenza A virus | NEURAMINIDASE | 
| 6hd4 | STI | Mus musculus | TYROSINE-PROTEIN KINASE ABL1 | 
| 6hd6 | STI | Mus musculus | TYROSINE-PROTEIN KINASE ABL1 | 
| 6his | TKT | Mus musculus | 5-HYDROXYTRYPTAMINE RECEPTOR 3A | 
| 6hlo | GBQ | Homo sapiens;Pyrococcus abyssi | SUBSTANCE-P RECEPTOR,GLGA GLYCOGENSYNTHASE,SUBSTANCE-P RECEPTOR | 
| 6hlp | GAW | Homo sapiens;Pyrococcus abyssi | SUBSTANCE-P RECEPTOR,SUBSTANCE-P RECEPTOR | 
| 6hqb | PQN | Synechocystis sp. PCC 6803 | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA1;PHOTOSYSTEM I REACTION CENTER SUBUNIT IX | 
| 6hqb | PQN | Synechocystis sp. PCC 6803 | PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEINA2 | 
| 6hrj | 010 | Bacillus subtilis | YNDL | 
| 6hu9 | CU | Saccharomyces cerevisiae | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 6hu9 | PCF | Saccharomyces cerevisiae | CYTOCHROME B-C1 COMPLEX SUBUNIT 1,MITOCHONDRIAL;CYTOCHROME B-C1 COMPLEX SUBUNIT 9;CYTOCHROME B-C1 COMPLEX SUBUNIT RIESKE,MITOCHONDRIAL | 
| 6hu9 | PCF | Saccharomyces cerevisiae | CYTOCHROME B-C1 COMPLEX SUBUNIT 8;CYTOCHROME C OXIDASE POLYPEPTIDE 5A,MITOCHONDRIAL | 
| 6hu9 | PCF | Saccharomyces cerevisiae | CYTOCHROME B;CYTOCHROME B-C1 COMPLEX SUBUNIT 7;CYTOCHROME B-C1 COMPLEX SUBUNIT 8 | 
| 6hu9 | PCF | Saccharomyces cerevisiae | CYTOCHROME C OXIDASE POLYPEPTIDE 5A,MITOCHONDRIAL;CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 6huo | 08H | Homo sapiens;Homo sapiens;Bos taurus | GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNITALPHA-1,GAMMA-AMINOBUTYRIC ACID RECEPTORSUBUNIT ALPHA-1;GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNITGAMMA-2 | 
| 6hup | DZP | Homo sapiens;Homo sapiens;Bos taurus | GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNITALPHA-1,GAMMA-AMINOBUTYRIC ACID RECEPTORSUBUNIT ALPHA-1;GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNITBETA-3 | 
| 6hup | DZP | Homo sapiens;Homo sapiens;Bos taurus | GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNITALPHA-1,GAMMA-AMINOBUTYRIC ACID RECEPTORSUBUNIT ALPHA-1;GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNITGAMMA-2 | 
| 6hwd | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-1;PROTEASOME SUBUNIT BETA TYPE-2 | 
| 6hwd | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-2;PROTEASOME SUBUNIT BETA TYPE-3 | 
| 6hwd | BO2 | Saccharomyces cerevisiae | PROTEASOME SUBUNIT BETA TYPE-5;PROTEASOME SUBUNIT BETA TYPE-6 | 
| 6hxi | ACT | Methanothrix soehngenii | SUCCINYL-COA LIGASE (ADP-FORMING) SUBUNITALPHA | 
| 6hzp | FVT | Staphylococcus hominis | PEPTIDE ABC TRANSPORTER PERMEASE | 
| 6i0y | TRP | Escherichia coli | 23S RIBOSOMAL RNA;TRYPTOPHANASE OPERON LEADER PEPTIDE | 
| 6i5z | SAM | Papaver somniferum | O-METHYLTRANSFERASE 1 | 
| 6ibl | H98 | Escherichia coli;Meleagris gallopavo | THIOREDOXIN 1,BETA-1 ADRENERGIC RECEPTOR | 
| 6ie8 | CHD | Salmonella enterica | REGULATORY PROTEIN | 
| 6iey | CLM | uncultured bacterium | ESTERASE | 
| 6ift | SAM | Bacillus subtilis | RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASEA | 
| 6ine | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE ASH1L | 
| 6j20 | GBQ | Homo sapiens;Escherichia virus T4 | SUBSTANCE-P RECEPTOR,ENDOLYSIN | 
| 6j21 | GBQ | Homo sapiens;Escherichia virus T4 | SUBSTANCE-P RECEPTOR,ENDOLYSIN | 
| 6ji6 | ACT | Schistosoma japonicum | GLUTATHIONE S-TRANSFERASE CLASS-MU 26 KDAISOZYME | 
| 6jmj | ASC | Acinetobacter baumannii | PHOSPHOPANTETHEINE ADENYLYLTRANSFERASE | 
| 6jnh | ASC | Acinetobacter baumannii | PHOSPHOPANTETHEINE ADENYLYLTRANSFERASE | 
| 6jog | ASC | Acinetobacter baumannii | PHOSPHOPANTETHEINE ADENYLYLTRANSFERASE | 
| 6ma6 | MYT | Homo sapiens | CYTOCHROME P450 3A4 | 
| 6ma7 | TPF | Homo sapiens | CYTOCHROME P450 3A4 | 
| 6mb5 | NMY | Pseudomonas aeruginosa | AAC(3)-IIIB PROTEIN | 
| 6mb7 | PAR | Pseudomonas aeruginosa | AAC(3)-IIIB PROTEIN | 
| 6mb9 | NMY | Pseudomonas aeruginosa | AAC(3)-IIIB PROTEIN | 
| 6md4 | BRL | Homo sapiens | PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORGAMMA | 
| 6mdq | TES | Equus caballus | SERUM ALBUMIN | 
| 6mht | SAM | ;Haemophilus haemolyticus | CYTOSINE-SPECIFIC METHYLTRANSFERASE HHAI | 
| 6mke | FK5 | Naegleria fowleri | PEPTIDYLPROLYL ISOMERASE | 
| 6mn1 | LLL | uncultured bacterium | AMINOGLYCOSIDE N(3)-ACETYLTRANSFERASE | 
| 6mn4 | AM2 | Escherichia coli | AMINOGLYCOSIDE N(3)-ACETYLTRANSFERASE,AAC(3)-IVA | 
| 6mn5 | LLL | Escherichia coli | AMINOGLYCOSIDE N(3)-ACETYLTRANSFERASE,AAC(3)-IVA | 
| 6mn8 | GLY | Onchocerca volvulus | UNCHARACTERIZED PROTEIN | 
| 6mn8 | HFG | Onchocerca volvulus | UNCHARACTERIZED PROTEIN | 
| 6mvx | K4D | Arcobacter butzleri | ION TRANSPORT PROTEIN | 
| 6mxt | K5Y | Homo sapiens;Escherichia virus T4 | ENDOLYSIN, BETA-2 ADRENERGIC RECEPTOR CHIMERA | 
| 6n7f | RBF | Streptococcus pyogenes | PUTATIVE GLUTATHIONE REDUCTASE (GR) | 
| 6n91 | DCF | Vibrio cholerae | ADENOSINE DEAMINASE | 
| 6ncs | ACT | Leptospira borgpetersenii | N-ACETYLNEURAMINIC ACID (SIALIC ACID)SYNTHETASE | 
| 6nj9 | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE, H3LYSINE-79 SPECIFIC | 
| 6nkn | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 6nkn | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 6nkn | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 6nkn | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 6nkn | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 6nm4 | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE PRDM9 | 
| 6nmf | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 6nmf | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 6nmf | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 6nmf | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 6nmf | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 6nmp | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 2;CYTOCHROME C OXIDASE SUBUNIT 6A2,MITOCHONDRIAL | 
| 6nmp | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 3 | 
| 6nmp | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 6nmp | CHD | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 3;CYTOCHROME C OXIDASE SUBUNIT 7A1,MITOCHONDRIAL | 
| 6nmp | CU | Bos taurus | CYTOCHROME C OXIDASE SUBUNIT 1 | 
| 6nqa | SAM | Homo sapiens | HISTONE-LYSINE N-METHYLTRANSFERASE, H3LYSINE-79 SPECIFIC | 
| 6pah | DAH | Homo sapiens | PHENYLALANINE 4-MONOOXYGENASE | 
| 6qgb | BEZ | Ideonella sakaiensis | MONO(2-HYDROXYETHYL) TEREPHTHALATE HYDROLASE | 
| 6qxs | FOZ | Enterococcus faecalis | THYMIDYLATE SYNTHASE | 
| 6qya | FOZ | Enterococcus faecalis | THYMIDYLATE SYNTHASE | 
| 6r2e | FFO | Homo sapiens | THYMIDYLATE SYNTHASE | 
| 7dfr | FOL | Escherichia coli | DIHYDROFOLATE REDUCTASE | 
| 8nse | H4B | Bos taurus | PROTEIN (NITRIC OXIDE SYNTHASE) | 
| 9nse | H4B | Bos taurus | PROTEIN (NITRIC OXIDE SYNTHASE) |