GEO DataSets

(Submitter supplied) Many neutralophilic bacterial species try to evade acid stress with an escape strategy, which is reflected in the increased expression of genes coding for flagellar components. Extremely acid-tolerant bacteria, such as Escherichia coli, survive the strong acid stress, e.g. in the stomach of vertebrates. Recently, we were able to show that the induction of motility genes in E. coli is strictly dependent on the degree of acid stress, i.e. more...

Organism:

Escherichia coli BW25113; Escherichia coli str. K-12 substr. MG1655

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL32899 GPL34252

12 Samples

Download data: XLSX

(Submitter supplied) A key to understanding the roles of RNA in regulating gene expression is knowing their structures in vivo. One way to obtain this information is through probing structures of RNA with chemicals. To probe RNA structure directly in cells, membrane-permeable reagents that modify the Watson-Crick (WC) face of unpaired nucleotides can be used. While dimethyl sulfate (DMS) has led to substantial insight into RNA structure, it has limited nucleotide specificity in vivo, with WC face reactivity only at Adenine (A) and Cytosine (C) at neutral pH. more...

Organism:

Escherichia coli

Type:

Other

Platform:

GPL32081

33 Samples

Download data: TXT

(Submitter supplied) The bacterial world offers diverse strains for understanding medical and environmental processes and for engineering synthetic-biology chasses. However, genetically manipulating these strains has faced a long-standing bottleneck: how to efficiently transform DNA. Here we report IMPRINT, a generalized, rapid and scalable approach to overcome DNA restriction, a prominent barrier to transformation. IMPRINT utilizes cell-free systems to express DNA methyltransferases from the bacterial host’s restriction-modification systems. more...

Organism:

Escherichia coli; Bifidobacterium breve

Type:

Other

Platforms:

GPL25368 GPL33564

7 Samples

Download data: TSV

(Submitter supplied) In 2011, in Germany, Escherichia coli O104:H4 caused the enterohemorrhagic E. coli (EHEC) outbreak with the highest incidence rate of hemolytic uremic syndrome. This pathogen carries an exceptionally potent combination of EHEC- and enteroaggregative E. coli (EAEC)-specific virulence factors. Here, we identified an E. coli O104:H4 isolate that carried a single nucleotide polymorphism (SNP) in the start codon (ATG>ATA) of rpoS, encoding the alternative sigma factor S. more...

Organism:

Escherichia coli

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21222

12 Samples

Download data: CSV

(Submitter supplied) RNA modifications have a substantial impact on tRNA function. While modifications in the anticodon loop play an important role in translational fidelity, modifications in the tRNA core influence tRNA structural stability. In bacteria, tRNA modifications play important roles in the stress response and expression of virulence factors. While tRNA modifications are well characterized in a few model organisms, our knowledge of tRNA modifications in human pathogens, such as Pseudomonas aeruginosa is lacking. more...

Organism:

Escherichia coli BW25113; Pseudomonas aeruginosa PA14

Type:

Non-coding RNA profiling by high throughput sequencing; Expression profiling by high throughput sequencing

Platforms:

GPL25344 GPL30881 GPL33546

27 Samples

Download data: CSV, FA, TXT

(Submitter supplied) We discovered that PCR-mediated template switching poses a significant challenge in ensemble tagged PCR, particularly in the template sequences with high similarities, which we successfully addressed by introducing a dual barcode. Template switching presents in repair sequencing (repair seq) and severely interfere the interpretation of the association between repair outcomes and the sgRNA in the vicinity. more...

Organism:

Escherichia coli; Homo sapiens

Type:

Other

Platforms:

GPL15520 GPL25368 GPL16085

30 Samples

Download data: TXT

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

Organism:

Escherichia coli str. K-12 substr. MG1655; Escherichia coli K-12

Type:

Expression profiling by high throughput sequencing; Other

Platforms:

GPL30519 GPL33080

102 Samples

Download data: BEDGRAPH

(Submitter supplied) How biomolecules condense to organize subcellular processes is of fundamental significance. Nitrogen-starved Escherichia coli form a single condensate, which we termed Bacterial Stress Body (BSB). Its formation is triggered by long polyphosphate chains, which scaffold the RNA chaperone Hfq into high molecular weight complexes with distinct sequence-specific RNA and DNA binding properties. We show that polyP is crucial for the stabilization of select RNAs, the sequestration of translation- and RNA metabolism-associated proteins that likely stall protein synthesis, and the specific nucleoid-associated localization of BSBs. more...

Organism:

Escherichia coli str. K-12 substr. MG1655

Type:

Other

Platform:

GPL33080

42 Samples

Download data: CSV

(Submitter supplied) How biomolecules condense to organize subcellular processes is of fundamental significance. Nitrogen-starved Escherichia coli form a single condensate, which we termed Bacterial Stress Body (BSB). Its formation is triggered by long polyphosphate chains, which scaffold the RNA chaperone Hfq into high molecular weight complexes with distinct sequence-specific RNA and DNA binding properties. We show that polyP is crucial for the stabilization of select RNAs, the sequestration of translation- and RNA metabolism-associated proteins that likely stall protein synthesis, and the specific nucleoid-associated localization of BSBs. more...

Organism:

Escherichia coli str. K-12 substr. MG1655

Type:

Expression profiling by high throughput sequencing

Platform:

GPL33080

56 Samples

Download data: CSV

(Submitter supplied) How biomolecules condense to organize subcellular processes is of fundamental significance. Nitrogen-starved Escherichia coli form a single condensate, which we termed Bacterial Stress Body (BSB). Its formation is triggered by long polyphosphate chains, which scaffold the RNA chaperone Hfq into high molecular weight complexes with distinct sequence-specific RNA and DNA binding properties. We show that polyP is crucial for the stabilization of select RNAs, the sequestration of translation- and RNA metabolism-associated proteins that likely stall protein synthesis, and the specific nucleoid-associated localization of BSBs. more...

Organism:

Escherichia coli K-12

Type:

Other

Platform:

GPL30519

4 Samples

Download data: BEDGRAPH

(Submitter supplied) We report using global regulator libraries based on the CRISPR-enabled trackable genome engineering (CREATE) method to engineer tolerance against multiple inhibitors in Escherichia coli. Deep mutagenesis libraries were rationally designed, constructed, and screened to target 34,340 mutations across 23 global regulators.These libraries were divided into G1, G2, G3, G4 and G5 sub-groups according to different gene functions (such as active sites, DNA binding sites, and predicted functional sites) . more...

Organism:

Escherichia coli str. K-12 substr. MG1655

Type:

Other

Platform:

GPL21117

5 Samples

Download data: TXT

(Submitter supplied) Role of L-arabinose on gene expression in E. coli O157:H7 TUV93-0 where CTRL samples were grown in the absence of L-arabinose and ARA samples were grown in the presence of L-arabinose.

Organism:

Escherichia coli O157:H7

Type:

Expression profiling by high throughput sequencing

Platform:

GPL34321

6 Samples

Download data: TXT

(Submitter supplied) In order to systematically assess the frequency and origin of stop codon miscoding events, we designed a library of reporters. We introduced premature stop codons into mScarlet that enabled high-throughput quantification of protein synthesis termination errors in E. coli using fluorescent microscopy. We found that under stress conditions, stop codon miscoding may occur with a rate as high as 80%, depending on the nucleotide context, suggesting that evolution frequently samples stop codon miscoding events. more...

Organism:

Escherichia coli str. K-12 substr. MG1655

Type:

Other

Platform:

GPL33229

13 Samples

Download data: BAM

(Submitter supplied) The DNA damage inducible SOS response in bacteria serves to increase survival of the species. The SOS response first initiates error-free repair which is followed by error-prone repair. Here, we have employed a multi-omics approach to elucidate the temporal coordination of the SOS response using transcriptomics, signalomics, and metabolomics. Escherichia coli was grown in batch cultivation in bioreactors to ensure highly controlled conditions. more...

Organism:

Escherichia coli str. K-12 substr. MG1655

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21117

42 Samples

Download data: CSV

(Submitter supplied) Antimicrobial exposure can potentially lead to increased antimicrobial resistance plasmid transfer. RNA sequencing data was collected from conjugal pairs of Salmonella enterica and Escherichia coli exposed or not exposed to tetracycline over a time course to determine differences in transcript numbers associated with conjugation and tetracycline exposure. The samples were sequenced on the Illumina HiSeq X10 platform with the 150-bp paired-end kit. more...

Organism:

Salmonella enterica; Escherichia coli J53

Type:

Expression profiling by high throughput sequencing

Platform:

GPL34283

24 Samples

Download data: XLSX

(Submitter supplied) Recent studies have combined DNA methyltransferase footprinting of genomic DNA in nuclei with long-read sequencing, resulting in detailed chromatin maps for multi-kilobase stretches of genomic DNA from one cell. Nucleosome footprints and nucleosome-depleted regions can be identified, yielding unprecedented information concerning their degree of correlation within the same cell. The enzyme of choice is M.EcoGII, which methylates adenines in any sequence context, potentially resulting in very high resolution. more...

Organism:

Saccharomyces cerevisiae; Escherichia coli

Type:

Other

Platforms:

GPL29643 GPL32099

12 Samples

Download data: BAM, BED, BIGWIG

(Submitter supplied) The gastrointestinal tract is colonized by trillions of microorganisms collectively known as the gut microbiota. These microbes provide essential signals to support healthy gut function. The microbiota is separated from internal tissue by a single layer of intestinal epithelial cells that not only provides a physical barrier but also relays luminal signals to underlying gut immune cells. Altered microbiota composition including loss of anti-inflammatory microbes or outgrowth of mucosa-associated bacteria such as adherent-invasive E. more...

Organism:

Escherichia coli

Type:

Expression profiling by high throughput sequencing

Platform:

GPL14548

34 Samples

Download data: TXT

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

Organism:

Escherichia coli; Escherichia phage T4

Type:

Expression profiling by high throughput sequencing; Other

Platforms:

GPL34101 GPL34102

14 Samples

Download data

(Submitter supplied) Host-pathogen conflicts are crucibles of molecular innovation. Selection for immunity to pathogens has driven the evolution of sophisticated immunity mechanisms throughout biology, including in bacteria that must evade their viral predators known as bacteriophages. Here, we characterize a toxin-antitoxin-chaperone system, CmdTAC, in Escherichia coli that provides robust defense against infection by T4 phage. more...

Organism:

Escherichia coli; Escherichia phage T4

Type:

Expression profiling by high throughput sequencing

Platform:

GPL34102

8 Samples

Download data: CSV

(Submitter supplied) Host-pathogen conflicts are crucibles of molecular innovation. Selection for immunity to pathogens has driven the evolution of sophisticated immunity mechanisms throughout biology, including in bacteria that must evade their viral predators known as bacteriophages. Here, we characterize a toxin-antitoxin-chaperone system, CmdTAC, in Escherichia coli that provides robust defense against infection by T4 phage. more...

Organism:

Escherichia coli; Escherichia phage T4

Type:

Other

Platform:

GPL34101

4 Samples

Download data: CSV