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Escherichia coli BW25113

ABSTRACT: membrane protein mRNAs interact specifically with CspE in Escherichia coli

PROVIDER: PRJNA288425 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR2080410.fastq.gz	Fastqsanger.gz
	SRR2080411.fastq.gz	Fastqsanger.gz
	SRR2080402.fastq.gz	Fastqsanger.gz
	SRR2080412.fastq.gz	Fastqsanger.gz
	SRR2080413.fastq.gz	Fastqsanger.gz

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Escherichia coli BW25113

Project description:Trailing membrane protein mRNAs on their way to the membrane in Escherichia coli: the effect of CspE

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Psychological Evaluation According Colonic Colonization by Escherichia Coli of Patients After Colorectal Surgery

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Project description:Escherichia coli strains producing exogenous internal membrane proteins

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Project description:Despite the characterization of many aetiologic genetic changes. The specific causative factors in the development of sporadic colorectal cancer remain unclear. This study was performed to detect the possible role of Enteropathogenic Escherichia coli (EPEC) in developing colorectal carcinoma.

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E. coli BW25113 frdC vs. E. coli BW25113 HW2

Project description:Glycerol is an attractive feedstock for biofuels since it accumulates as a byproduct during biodiesel operations; hence, it is interesting to consider converting glycerol to hydrogen using the formate hydrogen lyase system of Escherichia coli which converts pyruvate to hydrogen. Starting with Escherichia coli BW25113 frdC that lacks fumarate reductase to eliminate the negative effect of accumulated hydrogen on glycerol fermentation and by using both adaptive evolution and chemical mutagenesis combined with a selection method based on increased growth on glycerol, we obtained an improved strain, HW2, that produces 20-fold more hydrogen in glycerol medium (0.68 mmol/L/h) compared to that of frdC mutant. HW2 also grows 5-fold faster (0.25 1/h) than BW25113 frdC on glycerol, so it achieves a reasonable growth rate. Corroborating the increase in hydrogen production, glycerol dehydrogenase activity in HW2 increased 4-fold compared to BW25113 frdC. In addition, a whole-transcriptome study revealed that several pathways that would decrease hydrogen yields were repressed in HW2 (fbp, focA, and gatYZ) while a beneficial pathway, eno which encodes enolase was induced.

2010-10-31 | GSE18972 | GEO

Transcriptional responses of Escherichia coli rpoS- BW25113 vs. wild-type BW25113 under 15% ethanol shock in log phase

Project description:RpoS, an alternative sigma factor, is critical for stress response in Escherichia coli.RpoS also acts as a global regulator for stress control of gene expression, and actually dose so in log stage and stationary stage. To further understand the effect of environmental stresses on in ethanologenic strains, DNA microarrys was used to analyze the expression profiles of E. coli and its rpoS mutant strain.

2010-07-20 | GSE17526 | GEO

Escherichia coli BW25113 cobB/pCA24N-cobB vs. cobB/pCA24N under stress conditions

Project description:Acetylation of lysine residues is conserved in all three kingdoms; however, its role in prokaryotes is unknown. Here we demonstrate that acetylation enables the reference bacterium Escherichia coli to withstand environmental stress. Specifically, the bacterium reaches higher cell densities and becomes more resistant to heat and oxidative stress when its proteins are acetylated, as shown by deletion of the gene encoding acetyltransferase YfiQ and the gene encoding deacetylase CobB, as well as by overproducing YfiQ and CobB. Furthermore, we show that the increase in oxidative stress resistance with acetylation is due to the induction of catalase activity through enhanced katG expression. We also found that two-component system proteins CpxA, PhoP, UvrY, and BasR are associated with cell catalase activity and may be responsible as the connection between bacterial acetylation and the stress response. This is the first demonstration of a specific environmental role of acetylation in prokaryotes.

2012-06-06 | GSE29803 | GEO

Escherichia coli BW25113

Project description:Genome-wide identification of bacterial membrane protein expression determinants

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Microarray analysis of RNase I-deficient Escherichia coli versus wild-type BW25113

Project description:The present study investigated the role(s) of RNase I (encoded by the rna gene) in Escherichia coli by comparative gene expression analysis of an rna mutant and the isogenic wild-type E. coli strain BW25113. The transcriptomic analysis aims to provide mechanistic insight into aberrant phenotypes observed in the RNase I-deficient mutant.

2020-01-04 | E-MTAB-6095 | biostudies-arrayexpress

Gene expression in Escherichia coli treated with human PGRP, gentamicin, and CCCP

Project description:Human Peptidoglycan Recognition Proteins (PGRPs) kill bacteria, likely by over-activating stress responses in bacteria. To gain insight into the mechanism of PGRP killing of Escherichia coli and bacterial defense against PGRP killing, gene expression in E. coli treated with a control protein (bovine serum albumin, BSA), human recombinant PGRP (PGLYRP4), gentamicin (aminoglycoside antibiotic), and CCCP (membrane potential decoupler) were compared. Each treatment induced unique and somewhat overlapping pattern of gene expression. PGRP highly increased expression of genes for oxidative and disulfide stress, detoxification and efflux of Cu, As, and Zn, repair of damaged proteins and DNA, methionine and histidine synthesis, energy generation, and Fe-S clusters repair. PGRP also caused marked decrease in the expression of genes for Fe uptake and motility. Gene expression microarray in E. coli exposed to a human bactericidal innate immunity protein, PGRP, showed induction of oxidative stress response and defense genes, with different expression pattern than E. coli exposed to an aminoglycoside antibiotic and a membrane potential decoupler.

2014-07-25 | GSE44211 | GEO

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