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Updated: Jul 11, 2026
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Analysis of Yersinia enterocolitica Effector Translocation into Host Cells Using Beta-lactamase Effector Fusions
Published on: October 13, 2015
Effector functions of pathogenic Yersinia species
Martin Aepfelbacher1, Claudia Trasak, Klaus Ruckdeschel
1Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Diagnostikzentrum, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany. m.aepfelbacher@uke.uni-hamburg.de
Thrombosis and Haemostasis
|September 13, 2007
Summary
Pathogenic Yersinia bacteria use type III secretion systems to inject effector proteins called Yersinia outer proteins (Yops) into immune cells. These Yops manipulate host cell functions to promote infection.
Area of Science:
- Microbiology
- Immunology
- Molecular Biology
Background:
- Pathogenic Yersinia species evade host immunity to infect tissues.
- Yersinia utilizes a type III secretion system (T3SS) to deliver effector proteins into host cells.
- These effector proteins, known as Yersinia outer proteins (Yops), are crucial for virulence.
Purpose of the Study:
- To review the biochemistry of Yersinia effector proteins (Yops).
- To explore the cell biology of Yops within host immune cells.
- To understand the infection biology mediated by Yops.
Main Methods:
- Literature review focusing on Yop biochemistry.
- Analysis of studies on Yop interactions with host cell components.
- Examination of Yop roles in Yersinia pathogenesis.
Main Results:
- Yops possess unique biochemical activities.
- Yops modulate Rho GTP-binding proteins, affecting cytoskeleton and cell adhesion.
- Yops interfere with inflammatory pathways and regulate cell survival and apoptosis.
Conclusions:
- Yops are key virulence factors for Yersinia.
- Understanding Yop mechanisms is vital for combating Yersinia infections.
- Yops offer insights into host-pathogen interactions and immune evasion.
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