4M7U:
reference: The Structure and Competitive Substrate Inhibition of Dihydrofolate Reductase from Enterococcus faecalis Reveal Restrictions to Cofactor Docking., Bourne CR, Wakeham N, Webb N, Nammalwar B, Bunce RA, Berlin KD, Barrow WW, Biochemistry. 2014 Feb 25;53(7):1228-38. doi: 10.1021/bi401104t. Epub 2014 Feb, 11. PMID: 24495113

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