4X3R:
reference: Design of highly potent urea-based, exosite-binding inhibitors selective for glutamate carboxypeptidase II., Tykvart J, Schimer J, Jancarik A, Barinkova J, Navratil V, Starkova J, Sramkova K, Konvalinka J, Majer P, Sacha P, J Med Chem. 2015 May 28;58(10):4357-63. doi: 10.1021/acs.jmedchem.5b00278. Epub, 2015 May 7. PMID: 25923815

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