4PZD:
reference: Crystal structure and biochemical properties of the (S)-3-hydroxybutyryl-CoA dehydrogenase PaaH1 from Ralstonia eutropha., Kim J, Chang JH, Kim KJ, Biochem Biophys Res Commun. 2014 May 30;448(2):163-8. doi:, 10.1016/j.bbrc.2014.04.101. Epub 2014 Apr 29. PMID: 24792376

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