1W8S:
reference: Mechanism of the Schiff base forming fructose-1,6-bisphosphate aldolase: structural analysis of reaction intermediates., Lorentzen E, Siebers B, Hensel R, Pohl E, Biochemistry. 2005 Mar 22;44(11):4222-9. PMID: 15766250

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