| 1SDW: reference: Dioxygen binds end-on to mononuclear copper in a precatalytic enzyme complex., Prigge ST, Eipper BA, Mains RE, Amzel LM, Science 2004 May 7;304(5672):864-7. PMID: 15131304 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).