PDBID	Molecule/ Organism	Pfam	Residues	HETATM	Symmetry	Pubmed	View
1at3	HERPES SIMPLEX VIRUS TYPE II PROTEASE Human alphaherpesvirus 2	Peptidase_S21	GLU A 184 ARG A 187 GLU C 184 ARG C 187	None	homomer cyclic	9369473
1euh	NADP DEPENDENT NON PHOSPHORYLATING GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE Streptococcus mutans	Aldedh	GLU A 113 ARG A 117 GLU C 113 ARG C 117	None	homomer dihedral	10388564
1fc4	2-AMINO-3-KETOBUTYRATE CONENZYME A LIGASE Escherichia coli	Aminotran_1_2	ARG A  80 GLU A  93 ARG A 265 GLU B  25	None	homomer cyclic	11318637
1l5w	MALTODEXTRIN PHOSPHORYLASE Escherichia coli	Phosphorylase	ARG A  16 GLU A  44 ARG B  16 GLU B  44	None	homomer cyclic	12217700
1nfv	BACTERIOFERRITIN Desulfovibrio desulfuricans	-	ARG B 123 GLU B 126 ARG G 123 GLU G 126	None	homomer asymmetric	12627224
1o94	ELECTRON TRANSFER FLAVOPROTEIN ALPHA-SUBUNIT ELECTRON TRANSFER FLAVOPROTEIN BETA-SUBUNIT Methylophilus methylotrophus	ETF	GLU C 165 GLU D   8 ARG D  10 ARG D  15	None	heteromer cyclic	12567183
1pp9	UBIQUINOL-CYTOCHROME C REDUCTASE COMPLEX 14 KDA PROTEIN UBIQUINOL-CYTOCHROME C REDUCTASE COMPLEX CORE PROTEIN 2, MITOCHONDRIAL Bos taurus	Peptidase_M16 Peptidase_M16_C UCR_14kD	ARG B 133 GLU S  96 ARG S  99 GLU S 100	JZR S2011	heteromer cyclic	16024040
1q16	RESPIRATORY NITRATE REDUCTASE 1 ALPHA CHAIN RESPIRATORY NITRATE REDUCTASE 1 BETA CHAIN Escherichia coli	Fer4_11 Molybdopterin Molydop_binding Nitr_red_bet_C Nitr_red_alph_N	GLU A  32 ARG A  36 GLU B 252 ARG B 463	None	heteromer asymmetric	12910261
1wsu	SELENOCYSTEINE-SPECIFIC ELONGATION FACTOR Moorella thermoacetica	-	ARG C 530 GLU C 579 ARG D 530 GLU D 579	None	homomer asymmetric	15665870
1xff	GLUCOSAMINE--FRUCTOSE-6-PHOSPHATE AMINOTRANSFERASE [ISOMERIZING] Escherichia coli	GATase_6	ARG A  10 GLU A 186 ARG B  10 GLU B 186	None	homomer cyclic	8805567
1y10	HYPOTHETICAL PROTEIN RV1264/MT1302 Mycobacterium tuberculosis	Ad_Cy_reg Guanylate_cyc	GLU A 143 GLU A 236 ARG B 323 ARG B 363	None	homomer cyclic	15890882
1ylx	HYPOTHETICAL PROTEIN APC35702 Geobacillus stearothermophilus	DUF5634	ARG A   6 GLU A  33 ARG B   6 GLU B  33	None	homomer cyclic	-
2aly	PHENYLALANYL-TRNA SYNTHETASE ALPHA CHAIN PHENYLALANYL-TRNA SYNTHETASE BETA CHAIN Thermus thermophilus	B3_4 B5 FDX-ACB tRNA-synt_2d tRNA-synt_2d tRNA_bind	GLU A 112 ARG A 115 ARG B 493 GLU C 112	None	heteromer cyclic	16338408
2c4m	GLYCOGEN PHOSPHORYLASE Corynebacterium callunae	Phosphorylase	ARG A 141 GLU A 163 GLU B 216 ARG B 234	PO4 B1797	homomer cyclic	-
2cvz	3-HYDROXYISOBUTYRATE DEHYDROGENASE Thermus thermophilus	NAD_binding_11 NAD_binding_2	GLU A 266 ARG A 282 GLU D 266 ARG D 282	None	homomer dihedral	16126223
2dj6	HYPOTHETICAL PROTEIN PH0634 Pyrococcus horikoshii	PTPS	ARG A   4 ARG A 100 GLU B 112 GLU B 114	None	homomer cyclic	-
2ejw	HOMOSERINE DEHYDROGENASE Thermus thermophilus	Homoserine_dh NAD_binding_3	ARG A  25 GLU A  28 GLU B 141 ARG B 319	None	homomer cyclic	-
2ey4	PROBABLE TRNA PSEUDOURIDINE SYNTHASE B RIBOSOME BIOGENESIS PROTEIN NOP10 Pyrococcus furiosus	DKCLD PUA TruB_C_2 Nop10p TruB_N	GLU A 232 GLU E  43 ARG E  46 ARG E  50	None	heteromer asymmetric	16427014
2gza	TYPE IV SECRETION SYSTEM PROTEIN VIRB11 Brucella suis	T2SSE	ARG A 316 GLU B 290 GLU B 294 ARG B 315	None	homomer cyclic	16730027
2h1e	CHROMO DOMAIN PROTEIN 1 Saccharomyces cerevisiae	Chromo	ARG A  22 GLU A  48 ARG B  22 GLU B  48	None	homomer cyclic	17433364
2hjp	PHOSPHONOPYRUVATE HYDROLASE Variovorax sp. Pal2	PEP_mutase	GLU A  65 ARG A  68 GLU B  65 ARG B  68	None	homomer dihedral	16981709
2jf7	STRICTOSIDINE-O-BETA-D-GLUCOSIDASE Rauvolfia serpentina	Glyco_hydro_1	ARG A 433 ARG A 434 GLU A 497 GLU E 189	None	homomer dihedral	17890378
2nli	LACTATE OXIDASE Aerococcus viridans	-	ARG B  52 ARG B  56 GLU B 373 GLU F 373	None	homomer dihedral	18367206
2nr5	HYPOTHETICAL PROTEIN SO2669 Shewanella oneidensis	-	ARG A  49 GLU A  52 ARG H  49 GLU H  52	None	homomer asymmetric	-
2os5	ACEMIF Ancylostoma ceylanicum	MIF	ARG A  46 ARG A  53 GLU B  19 GLU B  20	None	homomer cyclic	17567581
2pfx	UNCHARACTERIZED PEROXIDASE-RELATED PROTEIN Ruegeria sp. TM1040	CMD	GLU A 107 ARG A 190 GLU F 107 ARG F 190	None	homomer dihedral	-
2plg	TLL0839 PROTEIN Synechococcus elongatus	YbjN	ARG A 121 GLU A 130 ARG B 121 GLU B 130	None	homomer asymmetric	-
2r4f	3-HYDROXY-3-METHYLGLUTARYL-COENZYME A REDUCTASE Homo sapiens	HMG-CoA_red	ARG A 595 ARG A 641 GLU B 730 GLU D 782	None	homomer dihedral	18072721
2xbg	YCF48-LIKE PROTEIN Thermosynechococcus elongatus	PSII_BNR	GLU A  48 ARG A 337 GLU B  48 ARG B 337	None	homomer cyclic	30061392
2xwt	THYROID BLOCKING HUMAN AUTOANTIBODY K1-70 HEAVY CHAIN THYROTROPIN RECEPTOR Homo sapiens	C1-set LRR_5 V-set LRR_5	ARG A  58 GLU C 107 ARG C 109 GLU C 157	None	heteromer asymmetric	21247981
3d3j	ENHANCER OF MRNA-DECAPPING PROTEIN 3 Homo sapiens	FDF YjeF_N	ARG A 303 GLU B 306 ARG B 355 GLU B 381	None	homomer cyclic	18678652
3e18	OXIDOREDUCTASE Listeria innocua	GFO_IDH_MocA GFO_IDH_MocA_C	ARG A 150 GLU A 225 GLU B 148 ARG B 150	GOL A 365	homomer cyclic	-
3ez1	AMINOTRANSFERASE MOCR FAMILY Deinococcus geothermalis	Aminotran_MocR	GLU A 288 ARG A 291 GLU B 288 ARG B 291	None	homomer cyclic	-
3h1j	MITOCHONDRIAL UBIQUINOL-CYTOCHROME C REDUCTASE 14 KDA PROTEIN MITOCHONDRIAL UBIQUINOL-CYTOCHROME-C REDUCTASE COMPLEX CORE PROTEIN 2 Gallus gallus	Peptidase_M16 Peptidase_M16_C UCR_14kD	ARG B 133 ARG S  49 GLU S  96 GLU S 100	None	heteromer cyclic	9565029
3ha4	MIX1 Leishmania major	MIX	ARG A  86 GLU A 115 ARG E  86 GLU E 115	None	homomer cyclic	21465610
3ic6	PUTATIVE METHYLASE FAMILY PROTEIN Neisseria gonorrhoeae	SpoU_methylase	ARG A 124 GLU A 186 ARG B 124 GLU B 186	None	homomer cyclic	-
3n2w	BETA-PEPTIDYL AMINOPEPTIDASE Sphingosinicella xenopeptidilytica	Peptidase_S58	ARG A 215 GLU C  12 ARG C 279 GLU C 333	None	homomer dihedral	22980995
3nja	PROBABLE GGDEF FAMILY PROTEIN Chromobacterium violaceum	PAS_3	ARG A  62 GLU A  66 ARG C  62 GLU C  66	None	homomer dihedral	-
3rfq	PTERIN-4-ALPHA-CARBINOLAMINE DEHYDRATASE MOAB2 Mycobacterium marinum	MoCF_biosynth	GLU A  51 ARG A 159 GLU F  51 ARG F 159	None	homomer dihedral	25613812
3rmh	YEAST CDC13 OB4 [Candida] glabrata	Cdc13_OB4_dimer	GLU A 644 ARG A 652 GLU B 644 ARG B 652	None	homomer cyclic	22025677
3tla	MCCF Escherichia coli	Peptidase_S66	ARG A  63 ARG A  70 GLU B 253 GLU B 294	None	homomer cyclic	22388748
3u7q	NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN Azotobacter vinelandii	DUF3364 Oxidored_nitro	ARG B 238 GLU B 258 GLU B 259 ARG D 350	None	heteromer cyclic	22096190
4a1f	REPLICATIVE DNA HELICASE Helicobacter pylori	DnaB_C	ARG A 366 GLU A 439 ARG B 366 GLU B 439	None	homomer cyclic	22405014
4dqz	METHYLTRANSFERASE TYPE 12 Hungateiclostridium thermocellum	Hen1_L	GLU A  42 ARG A  47 GLU B  42 ARG B  47	None	homomer cyclic	22847431
4fzv	MTERF DOMAIN-CONTAINING PROTEIN 2 PUTATIVE METHYLTRANSFERASE NSUN4 Homo sapiens	Methyltr_RsmB-F mTERF	GLU A  70 ARG A 141 ARG B 322 GLU B 326	None	heteromer asymmetric	23022348
4g2s	PROTEIN PRGH Salmonella enterica	PrgH	ARG B  18 GLU B  28 ARG C  35 GLU C  72	None	homomer cyclic	23633951
4gmf	YERSINIABACTIN BIOSYNTHETIC PROTEIN YBTU Yersinia enterocolitica	GFO_IDH_MocA	ARG A 227 GLU A 240 ARG B 227 GLU B 240	None	homomer cyclic	23066849
4ha7	2,5-DIAMINO-6-RIBOSYLAMINO-4(3H)-PYRIMIDINONE 5'-PHOSPHATE REDUCTASE Saccharomyces cerevisiae	RibD_C	ARG A  43 GLU A 214 ARG B  43 GLU B 214	None	homomer cyclic	23620735
4hvj	PUTATIVE UNCHARACTERIZED PROTEIN Mycobacterium tuberculosis	DUF5051	GLU A  87 ARG A 119 ARG B 122 GLU B 126	None	homomer cyclic	24311791
4jpg	PYRUVATE KINASE ISOZYMES M1/M2 Homo sapiens	PK PK_C	GLU A 396 ARG A 399 GLU C 396 ARG C 399	None	homomer dihedral	23622982
4pz3	CD44 ANTIGEN Homo sapiens	Xlink	GLU A  37 ARG A  78 GLU B  37 ARG B  78	PEG A 201	homomer cyclic	25195884
4tqt	D-HYDANTOINASE Brucella suis	Amidohydro_1	GLU A 248 ARG A 252 GLU C 248 ARG C 252	None	homomer dihedral	-
4w66	GLUTATHIONE S-TRANSFERASE DOMAIN PROTEIN Haliangium ochraceum	GST_C_3	ARG A  77 GLU A  94 ARG B  77 GLU B  94	None	homomer cyclic	-
4xym	ALPHA SUBUNIT OF ACYL-COA SYNTHETASE (NDP FORMING) Candidatus Korarchaeum cryptofilum	CoA_binding_2 Succ_CoA_lig	GLU A 281 ARG A 439 GLU C 281 ARG C 439	None	heteromer cyclic	26787904
4ydd	DMSO REDUCTASE FAMILY TYPE II ENZYME, IRON-SULFUR SUBUNIT DMSO REDUCTASE FAMILY TYPE II ENZYME, MOLYBDOPTERIN SUBUNIT Azospira oryzae	Fer4_11 Molydop_binding Molybdopterin	GLU A  15 ARG A  19 ARG B 157 GLU B 205	EDO B 406	heteromer asymmetric	26940877
4yxd	SUCCINATE DEHYDROGENASE [UBIQUINONE] FLAVOPROTEIN SUBUNIT, MITOCHONDRIAL SUCCINATE DEHYDROGENASE [UBIQUINONE] IRON-SULFUR SUBUNIT, MITOCHONDRIAL Sus scrofa	FAD_binding_2 Fer4_17 Succ_DH_flav_C Fer2_3	ARG A 165 ARG A 168 GLU B 134 GLU B 137	None	heteromer asymmetric	26198225
4zv5	MATRIX PROTEIN P10 Mouse mammary tumor virus	Gag_p10	ARG A  18 GLU A  22 GLU B  22 ARG B  23	None	homomer cyclic	26728401
5b1a	CYTOCHROME C OXIDASE SUBUNIT 2 CYTOCHROME C OXIDASE SUBUNIT 4 ISOFORM 1, MITOCHONDRIAL Bos taurus	COX2 COX4 COX2_TM	GLU B 132 GLU B 137 ARG B 141 ARG D 122	None	heteromer asymmetric	27605664
5inf	CARBOXYL TRANSFERASE Streptomyces ambofaciens	Carboxyl_trans	ARG A  74 GLU A 116 ARG F  74 GLU F 116	None	homomer dihedral	28000660
5j9u	CHROMATIN MODIFICATION-RELATED PROTEIN EAF6 CHROMATIN MODIFICATION-RELATED PROTEIN YNG2 ENHANCER OF POLYCOMB-LIKE PROTEIN 1 Saccharomyces cerevisiae	ING	ARG F  22 GLU G 365 ARG G 372 GLU H  46	None	heteromer asymmetric	27594449
5k5w	LIMITING CO2-INDUCIBLE PROTEIN LCIB Chlamydomonas reinhardtii	LCIB_C_CA	ARG A 121 GLU A 235 ARG B 121 GLU B 235	None	homomer cyclic	27911826
5k8p	5-NITROANTHRANILIC ACID AMINOHYDROLASE Bradyrhizobium sp.	Peptidase_M20	ARG A 180 GLU A 380 ARG C 180 GLU C 380	None	homomer dihedral	27694799
5nak	KYNURENINE 3-MONOOXYGENASE Pseudomonas fluorescens	FAD_binding_3	GLU A 449 ARG A 452 GLU B 187 ARG B 296	None	homomer asymmetric	28604669
5nx7	PENTALENENE SYNTHASE Streptomyces clavuligerus	-	ARG A  15 GLU A 296 ARG B  15 GLU B 296	None	homomer cyclic	28966840
5uju	NAD-DEPENDENT ALDEHYDE DEHYDROGENASE Burkholderia multivorans	Aldedh	GLU A 495 ARG B 101 ARG B 104 GLU B 105	None	homomer cyclic	-
5wrj	GASTRIN PEPTIDE PROTEIN-TYROSINE SULFOTRANSFERASE 1 Homo sapiens synthetic construct	Sulfotransfer_3	ARG A 102 ARG A 106 GLU B 120 GLU F1002	None	homomer cyclic	28821720
5y5s	PHOTOSYNTHETIC REACTION CENTER H SUBUNIT PHOTOSYNTHETIC REACTION CENTER M SUBUNIT Thermochromatium tepidum	PRC PRCH Photo_RC	ARG M 241 GLU H  37 ARG H  80 GLU H  82	None	heteromer asymmetric	29618814
6f5z	24-STEROL C-METHYLTRANSFERASE Haloferax volcanii	Methyltransf_11	ARG A  33 GLU A 181 ARG B  33 GLU B 181	None	heteromer cyclic	30010922