6LFP:
reference: In Vivo Enzyme Entrapment in a Protein Crystal., Heater BS, Yang Z, Lee MM, Chan MK, J Am Chem Soc. 2020 Jun 3;142(22):9879-9883. doi: 10.1021/jacs.9b13462. Epub 2020, May 19. PMID: 32407637

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