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. 2007 Nov 30;190(3):926–935. doi: 10.1128/JB.01447-07

FIG. 5.

FIG. 5.

Regulation of the yjjQ and the yjjP promoters by H-NS and LeuO. (A) The expression directed by the chromosomal yjjQ promoter-lacZ fusions was determined in the wild-type strain, the Δhns mutant, and the Δhns leuO::cat double mutant, as well as in transformants of the wild-type strain and the Δhns leuO::cat double with plasmid pKEDR13 for the expression of LeuO. The expression of LeuO was induced with 1 mM IPTG in the overnight and exponential cultures. The positions of the fragments are given relative to that of the transcription start of the yjjQ promoter mapping to 158 bp upstream of the yjjQ coding region. Binding of H-NS and LeuO is schematically indicated as in Fig. 4. (B) Expression analyses using chromosomal yjjP promoter-lacZ fusions. Data are represented as in panel A, where positions are given relative to the yjjP promoter mapping to 113 bp upstream of the translation start.