PDBID	Molecule/ Organism	Pfam	Residues	HETATM	Symmetry	Pubmed	View
2qv6	GTP CYCLOHYDROLASE III Methanocaldococcus jannaschii	GCH_III	ALA A  44 HIS A  45 ALA B  44 HIS B  45	None	homomer dihedral	18052207
2rh2	DIHYDROFOLATE REDUCTASE TYPE 2 Escherichia coli	DHFR_2	ALA A  61 HIS A  62 ALA C  61 HIS C  62	None	homomer dihedral	18052202
2z08	UNIVERSAL STRESS PROTEIN FAMILY Thermus thermophilus	Usp	ALA A  28 HIS A  29 ALA C  28 HIS C  29	None	homomer dihedral	-
3ffm	GROWTH ARREST AND DNA-DAMAGE-INDUCIBLE PROTEIN GADD45 GAMMA Homo sapiens	Ribosomal_L7Ae	ALA A  73 HIS A  77 ALA B  73 HIS B  77	None	homomer cyclic	-
4kn8	THERMOSTABLE NPPASE Geobacillus stearothermophilus	Hydrolase_6 Hydrolase_like	ALA A 166 HIS A 170 ALA B 166 HIS B 170	None	homomer cyclic	24256105
4ne3	CENTROMERE PROTEIN S Homo sapiens	CENP-S	HIS A  71 ALA A  72 HIS C  71 ALA C  72	None	heteromer cyclic	24390579
5z9s	GLYCOSYL HYDROLASE FAMILY 3 PROTEIN Bifidobacterium longum	Fn3-like Glyco_hydro_3 Glyco_hydro_3_C	HIS A 627 ALA A 628 HIS B 627 ALA B 628	None	homomer cyclic	29421652