PDB ID:4L76 Metal site ID: 4L76-CA-2 Bound amino acids or nucleotide residues: D1E1 Group identifier: R1 Is homomeric: True Amino acid or nucleotide residue IDs: ASP C.305 GLU D.326 All ligands IDs: ASP C.305 GLU D.326 Number of coordinating amino acids or nucleotide residues: 2 Number of coordinating ligands: 2 Number of coordinating chains: 2 Number of coordinating chains: 2