3QVR:
reference: Probing Oxygen Activation Sites in Two Flavoprotein Oxidases Using Chloride as an Oxygen Surrogate., Kommoju PR, Chen ZW, Bruckner RC, Mathews FS, Jorns MS, Biochemistry. 2011 May 26. PMID: 21568312

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