FIG. 3.
Characterization of transcriptional start sites. The −10 and −35 promoter sequences as well as the +1 transcriptional initiation site determined by 5′ RACE are indicated by shaded boxes. Panel A represents the promoter sequence upstream of blaVEB-1a and located in Re1 as determined by Aubert et al. (2). Panel B represents the promoter region of the aphA-6 gene. The +1, −10, and −35 written above the sequence correspond to promoter sequences suggested by Martin et al. (21), whereas those written below the sequence and located in the CR1 right-hand boundary are as described by Mammeri et al. (20).