GEO DataSets

(Submitter supplied) Enterohaemorrhagic E. coli (EHEC) is a significant human pathogens that cause outbreaks of haemorrhagic colitis and haemolytic uremic syndrome. During infection, pathogens compete for iron with the host, and one mechanism by which EHEC obtains iron is through haem uptake and utilitisation which is encoded by the chu operon. We have demonstrated that the haem receptor chuA is regulated by the Crp-cAMP-dependent sRNA CyaR. more...

Organism:

Escherichia coli

Type:

Expression profiling by high throughput sequencing; Other

Platform:

GPL21222

6 Samples

Download data: CSV, TXT

(Submitter supplied) Enterohaemorrhagic E. coli is significant human pathogen that causes disease ranging from haemorrhagic colitis to haemolytic uremic syndrome. The later can lead to potentially fatal renal failure and is caused by the release of Shiga toxins that are encoded within lambdoid bacteriophages. The toxins are encoded within the late transcript of the phage and are regulated by anti-termination of the PR’ late promoter during lytic induction of the phage. more...

Organism:

Escherichia coli O157:H7 str. Sakai

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28004

8 Samples

Download data: BEDGRAPH, SGR

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Escherichia coli O157:H7 str. Sakai; Escherichia coli; Escherichia coli O157:H7; Escherichia coli str. K-12 substr. MG1655

Type:

Expression profiling by array; Expression profiling by high throughput sequencing

4 related Platforms

12 Samples

Download data: GPR, GTF, TXT

(Submitter supplied) UV-crosslinking and high througput sequencing of cDNAs (CRAC) was used to map the binding sites Hfq in enterohaemorhaggic E. coli (EHEC). Hfq was tagged with a His-FLAG dual affintiy tag and UV crosslinked after growth in the MEM-HEPES media essentailly as per Granneman et al (2009) PNAS. We additionally crosslinked Hfq in non-pathogenic E. coli K12 str. MG1655 grown in LE media. Hfq-RNA complexes were purified and trimmed using RNase A/T1. more...

Organism:

Escherichia coli str. K-12 substr. MG1655; Escherichia coli O157:H7 str. Sakai

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL17026 GPL17024 GPL17025

11 Samples

Download data: GTF

(Submitter supplied) sRNAs play important roles in regulating gene expression post-transcriptionally. Here, we used RNA-seq to compare gene expression in a WT strain and a dicF1-4 deletion strain.

Organism:

Escherichia coli O157:H7 str. EDL933

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24005

6 Samples

Download data: TXT

(Submitter supplied) Enteric pathogens with low infectious doses rely on the ability to orchestrate expression of virulence and metabolism-associated genes in response to environmental cues for successful infection. Accordingly, the human pathogen enterohemorrhagic Escherichia coli (EHEC) employs a complex multifaceted regulatory network to link expression of type III secretion system (T3SS) factors to nutrient availability. more...

Organism:

Escherichia coli O157:H7 str. EDL933

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24005

6 Samples

Download data: TXT

(Submitter supplied) The first goal of the study was to identify genes differentially regulated by MavR in EHEC strain 86-24. The second goal was to identify direct targets of MavR through the MAPS protocol.

Organism:

Escherichia coli O157:H7

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL29711 GPL28511

10 Samples

Download data: TXT

(Submitter supplied) Recently, we developed an in vivo technology to draw the interacting map of a specific small regulatory RNA (sRNA). We called it MAPS for MS2-affinity purification coupled with RNA sequencing. Using this technology, we already revealed the targetome of RyhB, RybB and DsrA, three well-characterized sRNAs in Escherichia coli. In this study, we performed MAPS with CyaR sRNA.

Organism:

Escherichia coli K-12

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19168

2 Samples

Download data: TXT

(Submitter supplied) Recently, we developed an in vivo technology to draw the interacting map of a specific small regulatory RNA (sRNA). We called it MAPS for MS2-affinity purification coupled with RNA sequencing. Using this technology, we already revealed the targetome of RyhB, RybB and DsrA, three well-characterized sRNAs in Escherichia coli. In this study, we perform MAPS with RprA sRNA.

Organism:

Escherichia coli K-12

Type:

Other

Platform:

GPL19168

2 Samples

Download data: TXT

(Submitter supplied) Escherichia coli O157:H7 is a food-borne pathogen that causes bloody diarrhea and hemolytic uremic syndrome. Hfq is an sRNA chaperone protein that is involved in post-transcriptional regulation of virulence genes in pathogenic bacteria. In EHEC strain EDL933, Hfq acts a negative regulator of the locus of enterocyte effacement (LEE) that encodes most of the proteins involved in type three secretion and attaching and effacing lesions. more...

Organism:

Escherichia coli O157:H7; Escherichia coli

Type:

Expression profiling by array

Platform:

GPL3154

2 Samples

Download data: CEL, CHP

(Submitter supplied) Transcriptional analysis of the effects of the deletion of the sRNAs glmY and glmZ in EHEC

Organism:

Escherichia coli

Type:

Expression profiling by array

Platform:

GPL3154

3 Samples

Download data: CEL, CHP

(Submitter supplied) E. coli O157:H7 global gene expression profile is altered during growth in the presence of Hep-2 cells, relative to the absence of cells We used Affymetrix E. coli 2.0 genechips to determine gene expression changes

Organism:

Escherichia coli; Escherichia coli O157:H7

Type:

Expression profiling by array

Platform:

GPL3154

18 Samples

Download data: CEL

(Submitter supplied) In order to define the role of H-NS in regulating gene transcription and further find out the biological significance of this protein in EHEC, we conducted RNA-seq and then analyzed the transcriptome data, using EHEC O157:H7 strain EDL933 and Δhns. A total of 983 genes were found to be regulated by H-NS. 213 and 770 genes exhibited lower and higher transcript levels in Δhns than in WT, respectively. more...

Organism:

Escherichia coli O157:H7 str. EDL933

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21021

4 Samples

Download data: XLSX

(Submitter supplied) Multiple infection sources for enterohemorrhagic Escherichia coli O157:H7 are known, including food of animal origin and produce. The ecology of this pathogen outside its human host is largely unknown. One third of its annotated genes still are hypothetical. To identify genetic determinants expressed under environmental factors, we applied strand-specific RNA-sequencing of strain E. coli EDL933 under 11 different biotic and abiotic conditions: LB medium at pH4, pH7, pH9, or at 15°C; LB with nitrite or trimethoprim-sulfamethoxazole; LB-agar surface, M9 minimal medium, spinach leaf juice, surface of living radish sprouts, and cattle feces. more...

Organism:

Escherichia coli O157:H7

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL17334 GPL17333

15 Samples

Download data: XLSX

(Submitter supplied) An experiment to identify the downstream targets of PatE, a prophage encoded AraC-like transcriptional regulator, in transcriptional activation of acid-resistance pathways of enterohemorrhagic Escherichia coli strain EDL933 using deletion and complementation strains (Delta3 and Delta3_1, respectively).

Organism:

Escherichia coli; Escherichia coli O157:H7 str. EDL933

Type:

Expression profiling by array

Platform:

GPL15383

16 Samples

Download data: TXT