Dual promoters are responsible for transcription initiation of the fla/che operon in Bacillus subtilis.

@article{Estacio1998DualPA,
  title={Dual promoters are responsible for transcription initiation of the fla/che operon in Bacillus subtilis.},
  author={W F Estacio and Sonia Santa Anna-Arriola and M Adedipe and Leticia M{\'a}rquez-Maga{\~n}a},
  journal={Journal of bacteriology},
  year={1998},
  volume={180 14},
  pages={3548-55}
}
The fla/che region contains more than 30 genes required for flagellar synthesis and chemotaxis in Bacillus subtilis, including the gene for the flagellum-specific sigmaD factor, sigD. Sequence and primer extension data demonstrate that a PA promoter immediately upstream of flgB, henceforth referred to as the fla/che PA, and the PD-3 promoter are active in vivo. Transcription from the PD-3 element is dependent on sigmaD activity and is regulated by the flagellum-specific negative regulator, FlgM… CONTINUE READING
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