1UED:
reference: Crystal structure of OxyC, a cytochrome P450 implicated in an oxidative C-C coupling reaction during vancomycin biosynthesis., Pylypenko O, Vitali F, Zerbe K, Robinson JA, Schlichting I, J Biol Chem 2003 Nov 21;278(47):46727-33. Epub 2003 Jul 29. PMID: 12888556

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