Escherichia coli LW1655F+
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA29609 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Cell wall deficient mutant
| PRJNA30019 | ENA
Project description:Bacteria actively secrete extracellular vesicles (EVs), spherical nano-sized proteolipids into the extracellular milieu. Bacterial EVs have gained wide interests as non-living complex vaccines or delivery vehicles. However, no studies have used bacterial EVs in treating cancer so far. Our results showed remarkable capability of EVs derived from Escherichia coli W3110 msbB-deficient mutant to effectively induce long-term anti-tumor immune responses that can fully eradicate established tumors without notable adverse effects. This anti-tumor effect was IFN-γ-dependent, and we present a comprehensive proteome of E. coli W3110 msbB-deficient EVs to investigate which vesicular components induce the anti-tumor effects.
2018-11-22 | PXD006912 | Pride
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
Project description:Comparison for cell wall deficient mutants
| PRJNA30013 | ENA
Project description:Escherichia coli mutant strains were prepared for metabolomics analysis.
2019-07-09 | ST001321 | MetabolomicsWorkbench
Project description:The goal of this study is to compare gene expression data for a well known model organism (Escherichia coli) using different technologies (NGS here, microarray from GSE48776). mRNA profiles of Wild Type and two Mutant Strains (ydcR (b1439) MUTANT and yjiR (b4340) MUTANT), growth in minimal medium, were generated by deep sequencing, in triplicate, using Illumina MiSeq.
2013-07-12 | E-GEOD-48829 | biostudies-arrayexpress
Project description:In this study the transcriptional response of an ExPEC E. coli strain (CFT073) to human serum was investigated. In response, CFT073 up-regulated expression of iron and manganese acquisition systems and induced expression of iron regulated genes. High osmolarity of serum induced the osmotic shock response genes, promoting uptake of osmoprotectants by CFT073. Resistance of CFT073 to the bactericidal properties of serum involved increased expression of envelope stress regulators including CpxR, ?E and RcsB. Many of the up-regulated genes induced by active serum were regulated by the Rcs two component system. This system is triggered by envelope stress such as changes to cell wall integrity. RcsB-mediated serum resistance was conferred through induction of the exopolysaccharide colanic acid. Production of this exopolysaccharide may be protective while cell wall damage caused by serum components is repaired. Experimental Design: Two experiments are reported: 1) . The transcriptome of E. coli CFT073 exposed to LB supplemented with 50 % normal human serum was compared to that of bacteria grown in LB alone for 45 min, and 2) The transcriptome of CFT073 in response to normal healthy serum and heat inactivated serum (which has no bactericidal activity). Four biological replicates were performed per experiment with Dye swaps performed on sample replicates to eliminate any dye bias
2013-10-20 | E-MTAB-1985 | biostudies-arrayexpress
Project description:We investigated the impact of cadmium on the global transcriptome of E. coli wild type, ∆gshA and ∆gshB mutant cells to evaluate the molecular basis of cadmium toxicity in the presence or absence of cellular thiols. This global transcriptome analysis were done with cells synthezising GSH (wild type), gamma-glutamyl-cysteine (∆gshB mutant) or neither of the two cellular thiols (∆gshA mutant) under the influence of 100 µM Cd(II).
2008-05-31 | GSE11562 | GEO
Project description:In Escherichia coli, the Twin-arginine (Tat) secretion system is one of the main routes of the protein export to the periplasm. The Tat pathway secretes a set of proteins with important physiological functions. In our study, we investigated the influence of the deactivation of the Tat pathway on the E. coli cells. We applied a comprehensive and comparative proteomic analysis of the E. coli wild type and tat mutant. This dataset provides mass spectrometry based details on the abundances of proteins in cytoplasmic, periplasmic and membrane fractions. We observed that a tat deletion increases abundances of proteins involved in protein folding, degradation, responses to heat, oxidation, osmolarity, and cold. Moreover, the impairment of E. coli outer membrane resulted in the activation of proteins responsible for cell wall biogenesis. The tat deletion negatively affects the synthesis of iron transporters and imbalances its homeostasis in the cell.
2019-02-18 | PXD008803 | Pride