4EUF:
reference: Structures of trans-2-enoyl-CoA reductases from Clostridium acetobutulicum and Treponema denticola: insights into the substrate specificity and the catalytic mechanism., Hu K, Zhao M, Zhang T, Zha M, Zhong C, Jiang Y, Ding J, Biochem J. 2012 Oct 11. PMID: 23050861

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