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Updated: Jul 25, 2026

Analysis of Yersinia enterocolitica Effector Translocation into Host Cells Using Beta-lactamase Effector Fusions
Published on: October 13, 2015
Yersinia virulence: more than a plasmid.
1Department of Molecular Microbiology and Pediatrics, Washington University School of Medicine, 660 S. Euclid Ave, Campus Box 8208, St. Louis, MO 63110, USA.
This review details chromosomally encoded virulence factors (CEVF) in pathogenic Yersinia species. It explores their roles in diseases like plague and gastroenteritis, and proposes a model for Yersinia enterocolitica pathogenesis.
Area of Science:
- Microbiology
- Pathogenesis research
Background:
- The genus Yersinia includes 11 species, with three being significant human pathogens: Yersinia pestis, Yersinia enterocolitica, and Yersinia pseudotuberculosis.
- These pathogens cause diverse diseases, including pneumonic plague and acute gastroenteritis.
- Full virulence in these Yersinia species depends on a large, well-defined plasmid and numerous chromosomally encoded virulence factors (CEVF).
Purpose of the Study:
- To review the chromosomally encoded virulence factors (CEVF) in pathogenic Yersinia species.
- To elucidate the specific roles of CEVF in bacterial virulence.
- To propose a model for key events in Yersinia enterocolitica pathogenesis based on CEVF analysis.
Main Methods:
- Literature review of existing research on Yersinia virulence factors.
- Analysis of chromosomally encoded virulence factors (CEVF) and their functions.
- Synthesis of information to develop a pathogenetic model for Yersinia enterocolitica.
Main Results:
- Identification and description of various chromosomally encoded virulence factors (CEVF) in pathogenic Yersinia.
- Elucidation of the contribution of these CEVF to the virulence of Yersinia pestis, Yersinia enterocolitica, and Yersinia pseudotuberculosis.
- Development of a proposed model for Yersinia enterocolitica pathogenesis.
Conclusions:
- Chromosomally encoded virulence factors (CEVF) are essential for the pathogenicity of Yersinia species, complementing plasmid-encoded factors.
- Understanding CEVF is crucial for comprehending the spectrum of diseases caused by Yersinia.
- The proposed model offers insights into the intricate mechanisms of Yersinia enterocolitica infection.
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