However, despite the high degree of conservation at each position (ranging from 54% to 82% for each base), it is actually extremely rare to find a promoter that matches this consensus sequence ...

RNA polymerase and the necessary transcription factors bind to the promoter sequence and initiate transcription. Promoter sequences define the direction of transcription and indicate which DNA ...

The findings could have broad implications for understanding bacterial evolution ... Rainey, reveals that mutations in the promoter region of the rpoS gene occur at an astonishing rate ...