1CRL:
reference: Insights into interfacial activation from an open structure of Candida rugosa lipase., Grochulski P, Li Y, Schrag JD, Bouthillier F, Smith P, Harrison D, Rubin B, Cygler M, J Biol Chem 1993 Jun 15;268(17):12843-7. PMID: 8509417

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