| 1QYX: reference: Cofactor hydrogen bonding onto the protein main chain is conserved in the short chain dehydrogenase/reductase family and contributes to nicotinamide orientation., Shi R, Lin SX, J Biol Chem 2004 Apr 16;279(16):16778-85. Epub 2004 Feb 13. PMID: 14966133 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).