5HKI:
reference: Structural investigations on orotate phosphoribosyltransferase from Mycobacterium tuberculosis, a key enzyme of the de novo pyrimidine biosynthesis., Donini S, Ferraris DM, Miggiano R, Massarotti A, Rizzi M, Sci Rep. 2017 Apr 26;7(1):1180. doi: 10.1038/s41598-017-01057-z. PMID: 28446777

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