1FZ6:
reference: X-ray crystal structure of alcohol products bound at the active site of soluble methane monooxygenase hydroxylase., Whittington DA, Sazinsky MH, Lippard SJ, J Am Chem Soc 2001 Feb 28;123(8):1794-5. PMID: 11456795

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