4N5M:
reference: Crystal structure of (R)-3-hydroxybutyryl-CoA dehydrogenase PhaB from Ralstonia eutropha., Kim J, Chang JH, Kim EJ, Kim KJ, Biochem Biophys Res Commun. 2013 Nov 6. pii: S0006-291X(13)01843-3. doi:, 10.1016/j.bbrc.2013.10.150. PMID: 24211201

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