| 2DRC: reference: Investigation of the functional role of tryptophan-22 in Escherichia coli dihydrofolate reductase by site-directed mutagenesis., Warren MS, Brown KA, Farnum MF, Howell EE, Kraut J, Biochemistry 1991 Nov 19;30(46):11092-103. PMID: 1932031 |
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