Changing the hydrogen-bonding potential in the DNA binding site of EcoRI by site-directed mutagenesis drastically reduces the enzymatic activity, not, however, the preference of this restriction endonuclease for cleavage within the site-GAATTC-.

Source:http://linkedlifedata.com/resource/pubmed/id/2659077

Biochemistry 1989 Mar 21 28 6 2678-84

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2659077