1SKU:
reference: 240's loop interactions stabilize the T state of Escherichia coli aspartate transcarbamoylase., Alam N, Stieglitz KA, Caban MD, Gourinath S, Tsuruta H, Kantrowitz ER, J Biol Chem 2004 Mar 10;. PMID: 15014067

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