4FGZ:
reference: Crystal structure of phosphoethanolamine methyltransferase from Plasmodium falciparum in complex with amodiaquine., Lee SG, Alpert TD, Jez JM, Bioorg Med Chem Lett. 2012 Aug 1;22(15):4990-3. Epub 2012 Jun 17. PMID: 22771008

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