PDBID Molecule/
Organism		 Pfam Residues HETATM Symmetry Pubmed View
3cyj MANDELATE RACEMASE/MUCONATE LACTONIZING ENZYME-LIKE PROTEIN
Rubrobacter xylanophilus		MR_MLE_C
MR_MLE_N		HIS A 256
HIS A 288
HIS C 256
HIS C 288
None
homomer
dihedral		-
3lbw M2 PROTEIN
Influenza A virus		Flu_M2HIS A  37
HIS B  37
HIS C  37
HIS D  37
None
homomer
cyclic		20689043
4m3h COPPER OXIDASE
Streptomyces sviceus		Cu-oxidase_2
Cu-oxidase_3		HIS A 101
HIS A 151
HIS A 153
HIS B 286
  O B 403
 CU A 403
homomer
cyclic		24548692
4mu1 IMIDAZOLEGLYCEROL-PHOSPHATE DEHYDRATASE 2, CHLOROPLASTIC
Arabidopsis thaliana		IGPDHIS A  47
HIS A 169
HIS U  73
HIS U  74
 MN U 301
 MN U 302
homomer
octahedral		26095028
4mz7 DEOXYNUCLEOSIDE TRIPHOSPHATE TRIPHOSPHOHYDROLASE SAMHD1
Homo sapiens		HDHIS A 321
HIS A 322
HIS B 321
HIS B 322
None
homomer
dihedral		24217394