ArticleFEMS microbiology letters2017
Effect of RNase E deficiency on translocon protein synthesis in an RNase E-inducible strain of enterohemorrhagic Escherichia coli O157:H7.
Article in FEMS microbiology letters, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 7 citations in OpenAlex.
- Article
- The effect of two ribonucleases on the production of Shiga toxin and stx-bearing bacteriophages in Enterohaemorrhagic Escherichia coli.Scientific reports · 2021Article
- Article
- After the Fact(or): Posttranscriptional Gene Regulation in Enterohemorrhagic Escherichia coli O157:H7.Journal of bacteriology · 2018Review
- Influence of RNase E deficiency on the production of stx2-bearing phages and Shiga toxin in an RNase E-inducible strain of enterohaemorrhagic Escherichia coli (EHEC) O157:H7.Journal of medical microbiology · 2018Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Enterohemorrhagic Escherichia coli (EHEC) is a food-borne pathogen that assembles a type III secretion system (T3SS) on its surface. The last portion of the T3SS, called the 'translocon', is composed of a filament and a pore complex that is inserted into the membrane of intestinal epithelial cells. The genes encoding the translocon (espADB) are part of the LEE4 operon. Their expression is regulated by a complex post-transcriptional mechanism that involves the processing of LEE4 mRNA by the essential endoribonuclease RNase E. Here, we report the construction of an EHEC strain (TEA028-rne) in which RNase E can be induced by adding IPTG to the culture medium. EHEC cells deficient in RNase E displayed an abnormal morphology and slower growth, in agreement with published observations in E. coli K-12. Under those conditions, EspA and EspB were produced at higher concentrations, and protein secretion still occurred. These results indicate that RNase E negatively regulates translocon protein synthesis and demonstrate the utility of E. coli strain TEA028-rne as a tool for investigating the influence of this ribonuclease on EHEC gene expression in vitro.
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