PDBID	Molecule/ Organism	Pfam	Residues	HETATM	Symmetry	Pubmed	View
1is8	GTP CYCLOHYDROLASE I Rattus norvegicus	GTP_cyclohydroI	GLU A 233 GLU B 233 GLU C 233 GLU D 233 GLU E 233	None	heteromer dihedral	11818540
5sv0	BIOPOLYMER TRANSPORT PROTEIN EXBB Escherichia coli	MotA_ExbB	GLU B 105 GLU C 105 GLU D 105 GLU F 105 GLU A 105	None	homomer cyclic	27654919