PDB ID:7A23 Metal site ID: 7A23-ZN-1 Bound amino acids or nucleotide residues: H2 Group identifier: H3Q1R1 Is homomeric: True Amino acid or nucleotide residue IDs: HIS p.130 HIS q.107 All ligands IDs: HIS p.130 HIS q.107 Number of coordinating amino acids or nucleotide residues: 2 Number of coordinating ligands: 2 Number of coordinating chains: 2 Number of coordinating chains: 2