6PBJ:
reference: A single amino acid substitution uncouples catalysis and allostery in an essential biosynthetic enzyme in Mycobacterium tuberculosis., Jiao W, Fan Y, Blackmore NJ, Parker EJ, J Biol Chem. 2020 May 8;295(19):6252-6262. doi: 10.1074/jbc.RA120.012605. Epub, 2020 Mar 26. PMID: 32217694

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