2GQ1:
reference: Novel Allosteric Activation Site in Escherichia coli Fructose-1,6-bisphosphatase., Hines JK, Fromm HJ, Honzatko RB, J Biol Chem. 2006 Jul 7;281(27):18386-93. Epub 2006 May 2. PMID: 16670087

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