2OGX:
reference: Towards Biological Supramolecular Chemistry: A Variety of Pocket-Templated, Individual Metal Oxide Cluster Nucleations in the Cavity of a Mo/W-Storage Protein., Schemberg J, Schneider K, Demmer U, Warkentin E, Muller A, Ermler U, Angew Chem Int Ed Engl. 2007 Feb 16;46(14):2408-2413. PMID: 17304608

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