1C9W:
reference: Crystal structure of CHO reductase, a member of the aldo-keto reductase superfamily., Ye Q, Hyndman D, Li X, Flynn TG, Jia Z, Proteins 2000 Jan 1;38(1):41-8. PMID: 10651037

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