Changing the binding specificity of a repressor by redesigning an alpha-helix
- PMID: 4033758
- DOI: 10.1038/316601a0
Changing the binding specificity of a repressor by redesigning an alpha-helix
Abstract
We replaced amino acids on the 'outside', or solvent-exposed, surface of the DNA recognition alpha-helix of 434 repressor with the corresponding amino acids from the recognition helix of P22 repressor. The binding specificity of the resulting hybrid protein, as measured in vivo and in vitro, was that of P22 repressor.
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