3QU8: Crystal Structure Of A Human Cytochrome P450 2b6 (Y226hk262 Complex With The Inhibitor 4-(4-Nitrobenzyl)Pyridine.
reference: Structures of Cytochrome P450 2B6 Bound to 4-Benzylpyridine and 4-(4-Nitrobenzyl)pyridine: Insight into Inhibitor Binding and Rearrangement of Active Site Side Chains., Shah MB, Pascual J, Zhang Q, Stout CD, Halpert JR, Mol Pharmacol. 2011 Aug 29. PMID: 21875942

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