FIG 6.

DNA region at the junction of ISPme1 and dhlB2. DNA corresponding to the insertion sequence is boxed, and the inverted repeat of the IS element is shaded gray. Two putative sigma-70 promoters are indicated, including upstream activator sequences (UAS), −35 and −10 signals, and the spacing between the −35 and −10 signals (17 or 15 nucleotides). Note that the second promoter has an extended −10 motif, including a TG at −12. Two possible ribosome binding sites are shown for dhlB2. The dhlB2 open reading frame is shown in bold.