2ET7:
reference: Structural and spectroscopic studies shed light on the mechanism of oxalate oxidase., Opaleye O, Rose RS, Whittaker MM, Woo EJ, Whittaker JW, Pickersgill RW, J Biol Chem. 2006 Mar 10;281(10):6428-33. Epub 2005 Nov 15. PMID: 16291738

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