1GDH:
reference: Crystal structure of a NAD-dependent D-glycerate dehydrogenase at 2.4 A resolution., Goldberg JD, Yoshida T, Brick P, J Mol Biol 1994 Mar 4;236(4):1123-40. PMID: 8120891

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