1KFL:
reference: Allosteric inhibition of 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase alters the coordination of both substrates., Shumilin IA, Zhao C, Bauerle R, Kretsinger RH, J Mol Biol 2002 Jul 26;320(5):1147-56. PMID: 12126632

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