3MBC:
reference: Structure of a highly NADP+-specific isocitrate dehydrogenase., Sidhu NS, Delbaere LT, Sheldrick GM, Acta Crystallogr D Biol Crystallogr. 2011 Oct;67(Pt 10):856-69. Epub 2011, Sep 8. PMID: 21931217

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