1V94:
reference: Crystal structure of isocitrate dehydrogenase from Aeropyrum pernix., Jeong JJ, Sonoda T, Fushinobu S, Shoun H, Wakagi T, Proteins 2004 Jun 1;55(4):1087-9. PMID: 15146507

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