5CYV:
reference: The activity of CouR, a MarR family transcriptional regulator, is modulated through a novel molecular mechanism., Otani H, Stogios PJ, Xu X, Nocek B, Li SN, Savchenko A, Eltis LD, Nucleic Acids Res. 2016 Jan 29;44(2):595-607. doi: 10.1093/nar/gkv955. Epub 2015 , Sep 22. PMID: 26400178

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