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  • Trade-off between iron uptake and protection against oxidative stress: deletion of cueO promotes uropathogenic Escherichia coli virulence in a mouse model of urinary tract infection

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    Author(s)
    Tree, Jai J
    Ulett, Glen C
    Ong, Cheryl-Lynn Y
    Trott, Darren J
    McEwan, Alastair G
    Schembri, Mark A
    Griffith University Author(s)
    Ulett, Glen C.
    Year published
    2008
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    Abstract
    The periplasmic multicopper oxidase (CueO) is involved in copper homeostasis and protection against oxidative stress. Here, we show that the deletion of cueO in uropathogenic Escherichia coli increases its colonization of the urinary tract despite its increased sensitivity to hydrogen peroxide. The cueO deletion mutant accumulated iron with increased efficiency compared to its parent strain; this may account for its advantage in the iron-limited environment of the urinary tract.The periplasmic multicopper oxidase (CueO) is involved in copper homeostasis and protection against oxidative stress. Here, we show that the deletion of cueO in uropathogenic Escherichia coli increases its colonization of the urinary tract despite its increased sensitivity to hydrogen peroxide. The cueO deletion mutant accumulated iron with increased efficiency compared to its parent strain; this may account for its advantage in the iron-limited environment of the urinary tract.
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    Journal Title
    Journal of Bacteriology
    Volume
    190
    Issue
    20
    DOI
    https://doi.org/10.1128/JB.00451-08
    Copyright Statement
    © 2008 American Society for Microbiology. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Medical Bacteriology
    Medical Microbiology not elsewhere classified
    Biological Sciences
    Agricultural and Veterinary Sciences
    Medical and Health Sciences
    Publication URI
    http://hdl.handle.net/10072/25873
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    • Journal articles

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