Fig. 4

In vivo binding to the barR/Saci_2137 genomic region. a Binding profile of target Saci2137 recorded in the absence (purple) and presence (blue) of β-alanine. The barR/Saci_2137 intergenic region, which was previously studied, is indicated in red. Binding peaks are indicated with triangles. The position of the binding sites C, D and E with respect to the Saci_2137 open reading frame is indicated below. b Sequence of the Saci_2137 genomic region in which the regularly spaced sites C, D and E are located. Position numbering is with respect to the Saci_2137 translation start (indicated with 1)