3LII: Recombinant Human Acetylcholinesterase
reference: Acetylcholinesterase: from 3D structure to function., Dvir H, Silman I, Harel M, Rosenberry TL, Sussman JL, Chem Biol Interact. 2010 Sep 6;187(1-3):10-22. Epub 2010 Feb 4. PMID: 20138030

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