Major groove recognition by three-stranded beta-sheets: affinity determinants and conserved structural features.


We present the results of a rational mutagenesis and binding-affinity study of the three-stranded beta-sheet-DNA interface in the complex formed by the amino-terminal DNA-binding domain of the Tn916 integrase protein and its cognate binding site. The relative importance of interfacial contacts present in its NMR-derived solution structure have been tested… (More)


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