Escherichia coli
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA230919 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:GenomeTrakr project: Escherichia coli/Shigella, MDU PHL, Australia
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Project description:The invasive bacteria recognition by host cells through autophagy is a key factor for determining bacterial infection. Enteroinvasive Escherichia coli (EIEC) express a protein IcsB, which in Shigella, is known for inactivating the bacterial degradation process. Once EIEC showed less expression of icsB when compared to S. flexneri, we proposed to investigate the autophagy caused by EIEC infection. Our results showed that IcsB protein is an important virulence factor in EIEC because it causes a camouflage of the bacteria in the eukaryotic cell. When there is low or none expression of the protein, the cell recognition of the invasive bacteria is high, decreasing the bacteria dissemination. This found confirms the importance of the gene transcription and the sequence, since the strain E. coli SM124/13, complemented with icsB from Shigella, showed higher dissemination efficiency inside of the host cell. Additionally, our results revealed that eukaryotic cell infected by EIEC or Shigella flexneri showed distinguish responses. In EIEC infection, the autophagy was activated in human cells, but not in a conventional mode. Our hypothesis is that EIEC is recognized by autophagy, being an important cell process for bacterial recognition.
2020-01-11 | GSE93525 | GEO
Project description:The invasive bacteria recognition by host cells through autophagy is a key factor for determining bacterial infection. Enteroinvasive Escherichia coli (EIEC) express a protein IcsB, which in Shigella, is known for inactivating the bacterial degradation process. Once EIEC showed less expression of icsB when compared to S. flexneri, we proposed to investigate the autophagy caused by EIEC infection. Our results showed that IcsB protein is an important virulence factor in EIEC because it causes a camouflage of the bacteria in the eukaryotic cell. When there is low or none expression of the protein, the cell recognition of the invasive bacteria is high, decreasing the bacteria dissemination. This found confirms the importance of the gene transcription and the sequence, since the strain E. coli SM124/13, complemented with icsB from Shigella, showed higher dissemination efficiency inside of the host cell. Additionally, our results revealed that eukaryotic cell infected by EIEC or Shigella flexneri showed distinguish responses. In EIEC infection, the autophagy was activated in human cells, but not in a conventional mode. Our hypothesis is that EIEC is recognized by autophagy, being an important cell process for bacterial recognition.
2020-01-11 | GSE93588 | GEO
Project description:The invasive bacteria recognition by host cells through autophagy is a key factor for determining bacterial infection. Enteroinvasive Escherichia coli (EIEC) express a protein IcsB, which in Shigella, is known for inactivating the bacterial degradation process. Once EIEC showed less expression of icsB when compared to S. flexneri, we proposed to investigate the autophagy caused by EIEC infection. Our results showed that IcsB protein is an important virulence factor in EIEC because it causes a camouflage of the bacteria in the eukaryotic cell. When there is low or none expression of the protein, the cell recognition of the invasive bacteria is high, decreasing the bacteria dissemination. This found confirms the importance of the gene transcription and the sequence, since the strain E. coli SM124/13, complemented with icsB from Shigella, showed higher dissemination efficiency inside of the host cell. Additionally, our results revealed that eukaryotic cell infected by EIEC or Shigella flexneri showed distinguish responses. In EIEC infection, the autophagy was activated in human cells, but not in a conventional mode. Our hypothesis is that EIEC is recognized by autophagy, being an important cell process for bacterial recognition.
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Project description:Escherichia coli is an important human pathogen, among others a cause of severe diarrhea diseases and urinary tract infections. The ability to distinguish different pathogenic E. coli subspecies is crucial for correct treatment of the infection. Characterization and quantification of clinical isolates proteomes can provide details of the organisms’ metabolism and specific virulence factors. We performed a systematic quantitative proteomic analysis on a representative selection of 16 pathogenic and 2 commensal E. coli strains, together with 5 pathogenic Shigella strains. The analysis yielded a dataset of more than 4 thousand proteins, with an average of 2 thousand proteins per strain and 980 proteins common to all strains. Statistical comparison of label-free quantitative levels of 750 proteins, which were quantified in all strains, revealed that levels of a majority of the shared proteins vary substantially among specific strains. Theses quantitative protein profiles clearly distinguished E. coli strains from Shigella and largely separated commensal E. coli strains from intestinal and extraintestinal E. coli isolates.
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Project description:Gene expression from Escherichia coli.
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Project description:Proteomics, Escherichia coli, Shigella, Neisseria，Listeria monocytogenes，Staphylococcus aureus, Salmonella
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