3ZDN:
reference: Engineering an enantioselective amine oxidase for the synthesis of pharmaceutical building blocks and alkaloid natural products., Ghislieri D, Green AP, Pontini M, Willies SC, Rowles I, Frank A, Grogan G, Turner NJ, J Am Chem Soc. 2013 Jul 24;135(29):10863-9. doi: 10.1021/ja4051235. Epub 2013 Jul, 15. PMID: 23808566

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