FIG. 6.

PerA binding consensus sequence. (A) Nucleotide sequence alignment of the bfpA (upper line) and perA (lower line) regulatory regions. The boxed sequence denotes the 29-bp-long region that shares 66% identity between bfpA and perA, is required for PerA binding (this study), and has been previously shown to be required for the PerA-dependent activation of both promoters (5, 23). The proposed consensus PerA binding sequence is shown below the alignment. The −35 promoter sequence of both bfpA and perA is underlined. (B). Comparison of the second PerA binding sequence identified at the bfpA structural gene. Positions relative to the transcriptional start site are indicated to the left and right of each sequence.