5IVH: The Alpha-Esterase-7 Carboxylesterase, E3, From The Blowfly Cuprina: Apo-Enzyme Ensemble Refinement
reference: Mapping the Accessible Conformational Landscape of an Insect Carboxylesterase Using Conformational Ensemble Analysis and Kinetic Crystallography., Correy GJ, Carr PD, Meirelles T, Mabbitt PD, Fraser NJ, Weik M, Jackson CJ, Structure. 2016 Jun 7;24(6):977-87. doi: 10.1016/j.str.2016.04.009. Epub 2016 May, 19. PMID: 27210287

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