PDB ID:7F7J Metal site ID: 7F7J-CO-1 Bound amino acids or nucleotide residues: H2 Group identifier: A2L2R1 Is homomeric: True Amino acid or nucleotide residue IDs: HIS A.171 HIS B.171 All ligands IDs: HIS A.171 HIS B.171 Number of coordinating amino acids or nucleotide residues: 2 Number of coordinating ligands: 2 Number of coordinating chains: 2 Number of coordinating chains: 2