3MGX:
reference: Structural characterization of OxyD, a cytochrome P450 involved in beta-hydroxytyrosine formation in vancomycin biosynthesis., Cryle MJ, Meinhart A, Schlichting I, J Biol Chem. 2010 Aug 6;285(32):24562-74. Epub 2010 Jun 1. PMID: 20519494

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