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- W1557218655 abstract "Summary Enteropathogenic Escherichia coli (EPEC) are a major cause of infant morbidity and mortality due to diarrhoea in developing countries. The pathogenesis of EPEC is dependent on a coordinated multi‐step process culminating in the intimate adherence of the organisms to the host's intestinal mucosa. During the initial stages of the EPEC colonization process, the fimbrial adhesin, bundle‐forming pili (BFP), plays an integral role. We previously reported that the major BFP structural subunit, bundlin, displays lectin‐like properties, which enables BFP to initially tether EPEC to N ‐acetyllactosamine (LacNAc) glycan receptors on host cell surfaces. We also reported that incubating EPEC with synthetic LacNAc‐bearing neoglycoconjugates not only inhibits their adherence to host cells, but also induces BFP retraction and subsequent degradation of the bundlin subunits. Herein, we demonstrate that the periplasmic serine protease, DegP, is required for degrading bundlin during this process. We also show that DegP appears to act as a bundlin chaperone during BFP assembly and that LacNAc‐BSA‐induced BFP retraction is followed by transcriptional upregulation of the BFP operon and downregulation of the locus of enterocyte effacement operons in EPEC." @default.
- W1557218655 created "2016-06-24" @default.
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- W1557218655 date "2010-05-21" @default.
- W1557218655 modified "2023-10-16" @default.
- W1557218655 title "N-acetyllactosamine-induced retraction of bundle-forming pili regulates virulence-associated gene expression in enteropathogenic Escherichia coli" @default.
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- W1557218655 doi "https://doi.org/10.1111/j.1365-2958.2010.07192.x" @default.
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