5W6Y:
reference: Evolution of Allosteric Regulation in Chorismate Mutases from Early Plants., Kroll K, Holland CK, Starks CM, Jez JM, Biochem J. 2017 Sep 28. pii: BCJ20170549. doi: 10.1042/BCJ20170549. PMID: 28963347

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