3BLW:
reference: Allosteric motions in structures of yeast NAD+-specific isocitrate dehydrogenase., Taylor AB, Hu G, Hart PJ, McAlister-Henn L, J Biol Chem. 2008 Apr 18;283(16):10872-80. Epub 2008 Feb 6. PMID: 18256028

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