6GYF:
reference: Structural and Functional Characterization of NadR from Lactococcus lactis., Stetsenko A, Singh R, Jaehme M, Guskov A, Slotboom DJ, Molecules. 2020 Apr 22;25(8). pii: molecules25081940. doi:, 10.3390/molecules25081940. PMID: 32331317

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