5DFR: Crystal Structure Of Unliganded Escherichia Coli Dihydrofola Reductase. Ligand-Induced Conformational Changes And Cooper Binding
reference: Crystal structure of unliganded Escherichia coli dihydrofolate reductase. Ligand-induced conformational changes and cooperativity in binding., Bystroff C, Kraut J, Biochemistry 1991 Feb 26;30(8):2227-39. PMID: 1998681

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