1Q95:
reference: Aspartate transcarbamylase (ATCase) of Escherichia coli: a new crystalline R-state bound to PALA, or to product analogues citrate and phosphate., Huang J, Lipscomb WN, Biochemistry 2004 Jun 1;43(21):6415-21. PMID: 15157075

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