1JRQ:
reference: Conserved tyrosine-369 in the active site of Escherichia coli copper amine oxidase is not essential., Murray JM, Kurtis CR, Tambyrajah W, Saysell CG, Wilmot CM, Parsons MR, Phillips SE, Knowles PF, McPherson MJ, Biochemistry 2001 Oct 30;40(43):12808-18. PMID: 11669617

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).