2UZZ:
reference: The X-ray structure of N-methyltryptophan oxidase reveals the structural determinants of substrate specificity., Ilari A, Bonamore A, Franceschini S, Fiorillo A, Boffi A, Colotti G, Proteins. 2008 Jan 10;. PMID: 18186483

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