Type III Secretion in Yersinia: Injectisome or Not?

T. Edgren,A. Forsberg,R. Rosqvist,H. Wolf‐Watz

Published 2012 in PLoS Pathogens

ABSTRACT

Under certain conditions, pathogens like Yersinia secrete high levels of proteins. This ability correlates with cytotoxicity and virulence. The complete inactivity of the secreted proteins when added directly to host cells stimulated research to disclose this “non-AB toxin mechanism” of virulence, and eventually led to the discovery of the type III secretion mechanism and the “injection model” for virulence effector targeting. Recent studies question this model and suggest that the T3SS effector-targeting mechanism may resemble the classical AB toxin delivery mechanism.

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