3WEV:
reference: X-Ray crystallographic evidence for the presence of the cysteine tryptophylquinone cofactor in L-lysine {varepsilon}-oxidase from Marinomonas mediterranea., Okazaki S, Nakano S, Matsui D, Akaji S, Inagaki K, Asano Y, J Biochem. 2013 Sep;154(3):233-6. doi: 10.1093/jb/mvt070. Epub 2013 Aug 1. PMID: 23908359

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