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TranscriptomicsGenome-scale reconstruction of the sigma factor network in E. coli
We report the application of single-molecule-based sequencing technology for high-throughput profiling of transcription start sites for Escherichia coli under different conditions. By obtaining sequence from 5' RACE (rapid amplification of cDNA ends) followed by deep sequencing, we generated genome-...
ORGANISM(S): Escherichia coli str. K-12 substr. MG1655 
2014-02-05 | E-GEOD-46737 | biostudies-arrayexpress
TranscriptomicsSigma factor E of Mycobacterium tuberculosis controls the expression of bacterial components that modulate macrophages
Sigma factor E (SigE) controls the expression of genes that are essential for Mtb virulence. In this work, we have identified the SigE regulon during infection of macrophages Our results indicate that SigE regulates the expression of genes involved in the maintenance of Mtb cell envelope integrity a...
ORGANISM(S): Mycobacterium tuberculosis 
2010-05-25 | E-GEOD-7962 | biostudies-arrayexpress
TranscriptomicsRole of the extracytoplasmic-function sigma Factor sigmaH in Mycobacterium tuberculosis global gene expression
Like other bacterial species, Mycobacterium tuberculosis has multiple sigma (s) factors encoded in its genome. In previously published work, we and others have shown that mutations in some of these transcriptional activators render M. tuberculosis sensitive to various environmental stresses and, in ...
ORGANISM(S): Mycobacterium tuberculosis 
2007-08-03 | E-GEOD-8689 | biostudies-arrayexpress
TranscriptomicsChIP-chip of E. coli K-12 MG1655 with antibody against RNA polymerase subunits, RpoB, RpoD, RpoS,RpoH, RpoN, FliA, and FecI
We investigate sigma factor binding regions for each sigma factor under various enviromental and/or genetic conditions. To measure sigma factor binding at a genome scale, we employed a ChIP-chip method to derivative strains of E. coli K-12 MG1655 wild type and its isogenic rpoS and rpoN knock-out s...
ORGANISM(S): Escherichia coli str. K-12 substr. MG1655 
2014-02-05 | E-GEOD-46541 | biostudies-arrayexpress
ProteomicsEscherichia coli S2P family intramembrane protease RseP is engaged in the regulated sequential cleavages of FecR in the ferric citrate signaling
Escherichia coli RseP, a member of the S2P family intramembrane proteases, is involved in the activation of the σE extracytoplasmic stress response and the elimination of remnant signal peptides. It remains however unclear whether RseP has additional cellular functions. In this study, we attempted t...
ORGANISM(S): Escherichia Coli 
2021-04-14 | PXD023797 | JPOST Repository
TranscriptomicsA novel extracytoplasmic function (ECF) sigma factor regulates virulence in Pseudomonas aeruginosa
Next to the two-component and quorum sensing systems, cell-surface signaling (CSS) has been recently identified as an important regulatory system in Pseudomonas aeruginosa. CSS senses signals from outside the cell and transmits them into the cytoplasm. It consists of a TonB-dependent outer membrane ...
ORGANISM(S): Pseudomonas aeruginosa 
2009-04-21 | E-GEOD-15697 | biostudies-arrayexpress
TranscriptomicsMycobacterium tuberculosis and macrophage response
This SuperSeries is composed of the following subset Series: GSE6209: The global transcriptional profile of Mycobacterium tuberculosis during human macrophages infection GSE7962: Sigma factor E of Mycobacterium tuberculosis controls the expression of bacterial components that modulate macrophages Ke...
ORGANISM(S): Mycobacterium tuberculosis 
2010-05-25 | E-GEOD-7963 | biostudies-arrayexpress
TranscriptomicsEscherichia coli Sigma 32 ChIP-chip
Identification of Sigma 32 binding sites across the Escherichia coli genome using ChIP-chip following heat shock.
ORGANISM(S): Escherichia coli K-12 
2013-09-03 | E-MTAB-1849 | biostudies-arrayexpress
GenomicsIdentification by ChIP-Seq of the binding sites of the extracytoplasmic function (ECF) sigma factor SigE in the genome of Streptomyces coelicolor A3(2) M600.
SigE is a sigma factor found in Streptomyces species and is the key regulator of cell envelope stress response in Streptomyces coelicolor. This ChIP-Seq experiment was carried out to determine the binding sites of SigE under conditions of cell envelope stress induced by 10 ug / ml vancomycin for 30...
ORGANISM(S): Streptomyces coelicolor A3(2) 
2019-04-24 | E-MTAB-7827 | biostudies-arrayexpress
TranscriptomicsTranscriptional profiling of the sigma factor sigE deletion mutant of Streptomyces coelicolor (J2130) at 0, 30, 60 and 90 minutes after treatment with sub-lethal concentration of vancomycin.
SigE is a sigma factor found in Streptomyces species and is the key regulator of cell envelope stress response in Streptomyces coelicolor. To determine the regulon of SigE under conditions of cell envelope stress, 10 ug / ml vancomycin was used to induce cell envelope stress in the wild type and a s...
ORGANISM(S): Streptomyces coelicolor A3(2) 
2019-04-24 | E-MTAB-7814 | biostudies-arrayexpress
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