1OXA:
reference: Structure of cytochrome P450eryF involved in erythromycin biosynthesis., Cupp-Vickery JR, Poulos TL, Nat Struct Biol 1995 Feb;2(2):144-53. PMID: 7749919

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