FIG. 7.

BldR binding sites at the promoters of the Sso2536 gene and the mar-like operon. DNase I footprinting analyses of BldR were performed at the nontemplate strand of both the Sso2536 gene (A) and the mar-like operon (B). DNase I footprint analyses were performed using 0.0, 0.5, 1.0, and 2.0 μg of purified recombinant BldR. DNA fragments were analyzed in parallel with a sequencing reaction (relative lanes are indicated by the corresponding nucleotide positions on the top) by denaturing gel electrophoresis. The positions of the BldR footprints are indicated on the nucleotide sequences relative to the transcription start site.