1IT4:
reference: A novel prokaryotic phospholipase A2. Characterization, gene cloning, and solution structure., Sugiyama M, Ohtani K, Izuhara M, Koike T, Suzuki K, Imamura S, Misaki H, J Biol Chem 2002 May 31;277(22):20051-8. PMID: 11897786

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