1POA:
reference: Interfacial catalysis: the mechanism of phospholipase A2., Scott DL, White SP, Otwinowski Z, Yuan W, Gelb MH, Sigler PB, Science 1990 Dec 14;250(4987):1541-6. PMID: 2274785

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