Sigma s-dependent promoters in Escherichia coli are located in DNA regions with intrinsic curvature.

@article{EspinosaUrgel1993SigmaSP,
  title={Sigma s-dependent promoters in Escherichia coli are located in DNA regions with intrinsic curvature.},
  author={Manuel Espinosa-Urgel and Antonio Tormo},
  journal={Nucleic acids research},
  year={1993},
  volume={21 16},
  pages={3667-70}
}
Expression of a number of genes during stationary phase in Escherichia coli is controlled by the alternative sigma factor sigma s (KatF). Promoters recognized by sigma s do not present a well-defined consensus sequence in their -10 and -35 regions. By polyacrylamide gel electrophoresis of DNA fragments performed at different temperatures, and by computer prediction analyses, we have found that sigma s-regulated promoters are located in regions where DNA shows intrinsic curvatures. This feature… CONTINUE READING
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