Article
Kinetic analysis of operator binding by the E. coli methionine repressor highlights the role(s) of electrostatic interactions.
FEBS letters - 23 Apr 2004
Lawrenson Isobel D, Stockley Peter G
Abstract excerpt
MetJ is a member of the ribbon-helix-helix class of DNA-binding proteins whose affinity for operators is apparently controlled by an unprecedented long-range electrostatic effect from the tertiary sulphur atom of its co-repressor, S-adenosyl methionine. We report here the results of kinetic assays of DNA binding with MetJ mutant proteins having altered net charges. The results (a) suggest that MetJ locates its...
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