https://www.selleckchem.com/peptide/box5.html
A genetic screen to identify VqmAPhage mutants that are incapable of binding the qtip promoter but maintain binding to the vqmR promoter delivered additional VqmAPhage residues located immediately C-terminal to the helix-turn-helix motif as required for binding the qtip promoter. Surprisingly, these residues are conserved between VqmAPhage and VqmAVc. A second, targeted genetic screen revealed a region located in the VqmAVc DNA-binding domain that is necessary to prevent VqmAVc from binding the qtip promoter, thus restricting DNA binding to
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