1BBC:
reference: Structure of recombinant human rheumatoid arthritic synovial fluid phospholipase A2 at 2.2 A resolution., Wery JP, Schevitz RW, Clawson DK, Bobbitt JL, Dow ER, Gamboa G, Goodson T Jr, Hermann RB, Kramer RM, McClure DB, et al., Nature 1991 Jul 4;352(6330):79-82. PMID: 2062381

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