This anti-correlation in the levels of RpoS proteins recalled an earlier observation that Fis is a repressor of rpoS gene transcription , at least in exponential-phase cultures .
This anti-correlation in the levels of the Fis recalled an earlier observation that Fis is a repressor of rpoS gene transcription , at least in exponential-phase cultures .
Fis participate in the repression of hlyE transcription by repressing rpoS transcription To find out whether CRP is repressing hlyE expression through a direct binding to the respective promoter region , we performed a shift mobility assay .
Altogether , these results suggest that Fis are able to repress the rpoS expression by direct binding , thereby regulating hlyE expression in S. Typhi .
Fis participate in the repression of rpoS .
On the other hand , Fis precludes the RpoS accumulation by repressing the rpoS transcription .