PDBID	Molecule/ Organism	Pfam	Residues	HETATM	Symmetry	Pubmed	View
1v9c	PRECORRIN-8X METHYL MUTASE Thermus thermophilus	CbiC	ASP A  42 LYS A 187 ASP B  42 LYS B 187	None	homomer cyclic	-
2xig	FERRIC UPTAKE REGULATION PROTEIN Helicobacter pylori	-	ASP C 135 LYS C 137 ASP D 135 LYS D 137	None	homomer cyclic	21208302