3L24:
reference: Structural insights into the dual activities of the nerve agent degrading organophosphate anhydrolase/prolidase., Vyas NK, Nickitenko A, Rastogi VK, Shah SS, Quiocho FA, Biochemistry. 2010 Jan 26;49(3):547-59. PMID: 20000741

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