GEO DataSets

(Submitter supplied) We report the genome-wide effects of blocking the interaction between the sigma-54 bacterial transcriptional enhancer with its cognate promoter in E. coli under nitrogen-starvation conditions.

Organism:

Escherichia coli str. K-12 substr. MG1655

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24672

20 Samples

Download data: TXT

(Submitter supplied) The bacterial transcription factor RpoN regulates an extensive network of genes whose products are involved in diverse biological functions. We constructed a small peptide termed the RpoN molecular roadblock, which binds to and blocks transcription from RpoN promoters. This RpoN molecular roadblock can be used in any bacterium to obtain information on the RpoN regulon. We expressed the RpoN molecular roadblock in P. more...

Organism:

Pseudomonas aeruginosa; Pseudomonas aeruginosa PAO1

Type:

Expression profiling by array

Platform:

GPL84

16 Samples

Download data: CEL

(Submitter supplied) The aim was to determine the additional genes regulated by PilR in addition to fimA. To determine the additional genes the gene expression profile of a pilR mutant was compared to the wild-type strain. Keywords: genetic modification

Organism:

Dichelobacter nodosus

Type:

Expression profiling by array

Platform:

GPL2981

3 Samples

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(Submitter supplied) To determine the genes in addition to fimA regulated by sigma 54 by analysing the gene expression profiles of an rpoN mutant compared to the D. nodosus wild-type strain. Keywords: genetic modification

Organism:

Dichelobacter nodosus

Type:

Expression profiling by array

Platform:

GPL2981

4 Samples

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(Submitter supplied) The alternative subunit of RNA polymerase RpoS/σS controls a global adaptive response allowing many Gram-negative bacteria to survive nutrient deprivation and various stresses and contributes to biofilm formation and virulence of Salmonella enterica serovar Typhimurium. We have addressed an important but poorly understood aspect of σS-dependent control; that of a repressor. The general assumption is that negative regulation of gene expression by σS is mainly a passive phenomenon, due to competition between σS and other sigma factors for binding to a limited amount of core RNA polymerase (RNAP). more...

Organism:

Salmonella enterica subsp. enterica serovar Typhimurium

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17070

9 Samples

Download data: XLS