1QO5:
reference: The structure of human liver fructose-1,6-bisphosphate aldolase., Dalby AR, Tolan DR, Littlechild JA, Acta Crystallogr D Biol Crystallogr. 2001 Nov;57(Pt 11):1526-33. Epub 2001, Oct 25. PMID: 11679716

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