4ATD:
reference: High speed X-ray analysis of plant enzymes at room temperature., Xia L, Rajendran C, Ruppert M, Panjikar S, Wang M, Stoeckigt J, Phytochemistry. 2012 Jun 13. PMID: 22704651

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