3PCJ: Structure Of Protocatechuate 3,4-Dioxygenase Complexed With Hydroxyisonicotinic Acid N-Oxide
reference: Crystal structures of substrate and substrate analog complexes of protocatechuate 3,4-dioxygenase: endogenous Fe3+ ligand displacement in response to substrate binding., Orville AM, Lipscomb JD, Ohlendorf DH, Biochemistry 1997 Aug 19;36(33):10052-66. PMID: 9254600

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