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Items: 1 to 20 of 6421

1.

Chaperone saturation mediates translation and protein folding efficiency

(Submitter supplied) Whether the emergence of a nascent protein from the ribosome and the formation of structural elements are synchronized has been a longstanding question. Paradoxically, kinetically efficient translation can induce mis-folding and aggregation despite the presence of molecular chaperones, which in Escherichia coli are induced by unfolded protein via σ32. The molecular mechanisms mediating translation efficiency and protein folding efficiency remain poorly understood. more...
Organism:
Escherichia coli; Escherichia coli str. K-12 substr. MG1655
Type:
Other; Expression profiling by high throughput sequencing
Platforms:
GPL18956 GPL18133
30 Samples
Download data: TSV
Series
Accession:
GSE104303
ID:
200104303
2.

Ribosome collisions trigger subunit splitting in E. coli

(Submitter supplied) Although many clinically important antibiotics inhibit bacterial ribosomes, the mechanisms by which bacterial cells rescue ribosomes stalled by antibiotics remain poorly understood. Ribosome stalling leads to collisions that recruit ribosome quality control (RQC) factors that recycle the ribosome subunits and target nascent proteins for degradation. Surprisingly, loss of known RQC factors in E. coli does not lead to significant antibiotic sensitivity, even though antibiotics stall ribosomes and induce collisions, suggesting the existence of additional, uncharacterized RQC mechanisms. more...
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Other
Platform:
GPL21117
6 Samples
Download data: WIG
Series
Accession:
GSE270401
ID:
200270401
3.

RNC-seq of S1K247Q and S1WT

(Submitter supplied) RNC-seq experiment of the simulated acetylation mutant S1K247Q of S1 protein
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Expression profiling by high throughput sequencing
Platform:
GPL26592
6 Samples
Download data: TXT
Series
Accession:
GSE254167
ID:
200254167
4.

RNA-seq of S1K247Q and S1WT

(Submitter supplied) RNA-seq experiment of the simulated acetylation mutant S1K247Q of S1 protein
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Expression profiling by high throughput sequencing
Platform:
GPL26592
6 Samples
Download data: TXT
Series
Accession:
GSE254165
ID:
200254165
5.

De novo gene synthesis by an antiviral reverse transcriptase

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Other; Expression profiling by high throughput sequencing
Platform:
GPL21117
75 Samples
Download data: BED, BW
Series
Accession:
GSE270164
ID:
200270164
6.

De novo gene synthesis by an antiviral reverse transcriptase [RNA-seq]

(Submitter supplied) Bacteria defend themselves from viral predation using diverse immune systems, many of which sense and target foreign nucleic acids. Defense-associated reverse transcriptase (DRT) systems provide an intriguing counterpoint to this immune strategy by instead leveraging DNA synthesis, but the identities and functions of their DNA products remain largely unknown. Here we show that DRT2 systems execute an unprecedented immunity mechanism that involves de novo gene synthesis via rolling-circle reverse transcription of a non-coding RNA (ncRNA). more...
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Expression profiling by high throughput sequencing
Platform:
GPL21117
3 Samples
Download data: BED
Series
Accession:
GSE270162
ID:
200270162
7.

De novo gene synthesis by an antiviral reverse transcriptase [RIP-seq]

(Submitter supplied) Bacteria defend themselves from viral predation using diverse immune systems, many of which sense and target foreign nucleic acids. Defense-associated reverse transcriptase (DRT) systems provide an intriguing counterpoint to this immune strategy by instead leveraging DNA synthesis, but the identities and functions of their DNA products remain largely unknown. Here we show that DRT2 systems execute an unprecedented immunity mechanism that involves de novo gene synthesis via rolling-circle reverse transcription of a non-coding RNA (ncRNA). more...
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Other
Platform:
GPL21117
36 Samples
Download data: BW
Series
Accession:
GSE270161
ID:
200270161
8.

De novo gene synthesis by an antiviral reverse transcriptase [cDIP-seq]

(Submitter supplied) Bacteria defend themselves from viral predation using diverse immune systems, many of which sense and target foreign nucleic acids. Defense-associated reverse transcriptase (DRT) systems provide an intriguing counterpoint to this immune strategy by instead leveraging DNA synthesis, but the identities and functions of their DNA products remain largely unknown. Here we show that DRT2 systems execute an unprecedented immunity mechanism that involves de novo gene synthesis via rolling-circle reverse transcription of a non-coding RNA (ncRNA). more...
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Other
Platform:
GPL21117
36 Samples
Download data: BW
Series
Accession:
GSE270160
ID:
200270160
9.

Systematic Study on the Three-Dimensional Genome of Escherichia Coli and Its Thermal Adaptation Mechanism (RNA-Seq)

(Submitter supplied) Total RNA was extracted and sequenced from Escherichia coli cultured to log phase and stable phase at 37 ° C and 45 ° C, respectively. The transcriptome data of Escherichia coli under four different growth conditions were obtained.
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Expression profiling by high throughput sequencing
Platform:
GPL24659
12 Samples
Download data: TXT
Series
Accession:
GSE211824
ID:
200211824
10.

Systematic Study on the Three-Dimensional Genome of Escherichia Coli and Its Thermal Adaptation Mechanism (3C-Seq)

(Submitter supplied) Chromosome conformation capture and sequencing experiments were carried out at 37℃ and 45℃ for E. coli in logarithmic phase and stable phase, respectively. Three-dimensional DNA interaction data of E. coli under four different growth conditions and control group were obtained
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Other
Platform:
GPL24659
10 Samples
Download data: TXT
Series
Accession:
GSE211823
ID:
200211823
11.

Spatial Chromosome Organization and Adaptation of Escherichia coli under Heat Stress

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Expression profiling by high throughput sequencing; Other
Platform:
GPL24659
22 Samples
Download data: TXT
Series
Accession:
GSE211825
ID:
200211825
12.

Genome-scale CRISPRi screen identifies pcnB repression conferring improved physiology for overproduction of free fatty acids in Escherichia coli II

(Submitter supplied) Microbial physiology plays a pivotal role in construction of a superior microbial cell factory for efficient production of desired products. Here we identified pcnB repression through genome-scale CRISPRi modulation combining fluorescence-activated cell sorting (FACS) and next-generation sequencing (NGS), which confers improved physiology for free fatty acids (FFAs) overproduction in Escherichia coli. more...
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Other
Platform:
GPL26592
5 Samples
Download data: XLSX
Series
Accession:
GSE267827
ID:
200267827
13.

Genome-scale CRISPRi screen identifies pcnB repression conferring improved physiology for overproduction of free fatty acids in Escherichia coli

(Submitter supplied) Microbial physiology plays a pivotal role in construction of a superior microbial cell factory for efficient production of desired products. Here we identified pcnB repression through genome-scale CRISPRi modulation combining fluorescence-activated cell sorting (FACS) and next-generation sequencing (NGS), which confers improved physiology for free fatty acids (FFAs) overproduction in Escherichia coli. more...
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Expression profiling by high throughput sequencing
Platform:
GPL34485
6 Samples
Download data: XLS
Series
Accession:
GSE267710
ID:
200267710
14.

Motility-activating mutations upstream of flhDC reduce acid shock survival of Escherichia coli

(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
Series
Accession:
GSE260455
ID:
200260455
15.

Bacterial Stress Bodies – Ancestral Condensates Regulating RNA Turnover and Protein Translation

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.
Organism:
Escherichia coli K-12; Escherichia coli str. K-12 substr. MG1655
Type:
Expression profiling by high throughput sequencing; Other
Platforms:
GPL30519 GPL33080
102 Samples
Download data: BEDGRAPH
Series
Accession:
GSE241322
ID:
200241322
16.

Bacterial Stress Bodies – Ancestral Condensates Regulating RNA Turnover and Protein Translation III

(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
Series
Accession:
GSE241321
ID:
200241321
17.

Bacterial Stress Bodies – Ancestral Condensates Regulating RNA Turnover and Protein Translation II

(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
Series
Accession:
GSE241319
ID:
200241319
18.

Deep sequencing and fitness calculation for plasmids carrying the CREATE cassette from the enriched tolerant strains under different pressures by using Illumina protocol

(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
Series
Accession:
GSE200448
ID:
200200448
19.

ENVIRONMENT MODULATES PROTEIN HETEROGENEITY THROUGH TRANSCRIPTIONAL AND TRANSLATIONAL STOP CODON RECODING

(Submitter supplied) In order to systematically assess the frequency and origin of stop codon recoding 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 recoding may occur with a rate as high as 80%, depending on the nucleotide context, suggesting that evolution frequently samples stop codon recoding events. more...
Organism:
Escherichia coli str. K-12 substr. MG1655
Type:
Other
Platform:
GPL33229
13 Samples
Download data: BAM
Series
Accession:
GSE226936
ID:
200226936
20.

SOS Genes Are Rapidly Induced While Mutagenesis Is Temporally Regulated by Changes in Protein Activation and Nucleotide Pools After a Sub-lethal Dose of Ciprofloxacin in Escherichia coli

(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
Series
Accession:
GSE249682
ID:
200249682
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