FIG. 5.

Regulatory motifs in the sol operon regulatory region. The top line schematically shows the end of the orf5 gene with its two transcriptional terminators (hairpins), the position of the P₁ promoter as the start point of the mRNA, and the beginning of the adhE gene. The second line indicates the fragment used to construct pACT1. The sequence at the bottom is the sequence of the DNA region comprising the three incomplete repeats (from left to right, R1, R2, and R3) and the Spo0A-binding site (box).