FIG. 5.

Analysis of the promoter P₁₁₉₃ with potential regulator proteins. For the explanation of the genomic region at the top of the figure, see the legend to Fig. 3. (A) Promoter activity is assayed with long genomic fragments containing several ORFs possibly coding for regulators.(B) The 230-bp promoter region (indicated by an arrowhead) was cloned into the CAT reporter vector, and the potential regulator genes (shaded gray) were cloned into another, compatible vector. The plasmid constructions are indicated at the left. For the level of the CAT expression (plus and minus signs), see the legend to Fig. 3.