4GQR:
reference: Order and Disorder: The Differential Structural Impacts of Myricetin and Ethyl Caffeate on Human Amylase, an Anti-Diabetic Target., Williams LK, Li C, Withers SG, Brayer GD, J Med Chem. 2012 Oct 10. PMID: 23050660

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