3NJQ:
reference: Enzyme inhibition by allosteric capture of an inactive conformation., Lee GM, Shahian T, Baharuddin A, Gable JE, Craik CS, J Mol Biol. 2011 Sep 2;411(5):999-1016. Epub 2011 Jun 22. PMID: 21723875

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