1TUV:
reference: Structural and biochemical evidence for an enzymatic quinone redox cycle in escherichia coli: Identification of a novel quinol monooxygenase., Adams MA, Jia Z, J Biol Chem 2004 Dec 21;. PMID: 15613473

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