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Microbes Infect. 2011 Sep;13(10):808-17. doi: 10.1016/j.micinf.2011.04.008. Epub 2011 May 12.

Yersiniabactin iron uptake: mechanisms and role in Yersinia pestis pathogenesis.

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1
Department of Microbiology, Immunology, and Molecular Genetics, MS415 Medical Center, University of Kentucky, Lexington, KY 40536-0298, USA. rperry@uky.edu

Abstract

Yersiniabactin (Ybt) is a siderophore-dependent iron uptake system encoded on a pathogenicity island that is widespread among pathogenic bacteria including the Yersiniae. While biosynthesis of the siderophore has been elucidated, the secretion mechanism and a few components of the uptake/utilization pathway are unidentified. ybt genes are transcriptionally repressed by Fur but activated by YbtA, likely in combination with the siderophore itself. The Ybt system is essential for the ability of Yersinia pestis to cause bubonic plague and important in pneumonic plague as well. However, the ability to cause fatal septicemic plague is independent of Ybt.

PMID:
21609780
PMCID:
PMC3148425
DOI:
10.1016/j.micinf.2011.04.008
[Indexed for MEDLINE]
Free PMC Article
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