Coxiella type IV secretion and cellular microbiology.

Abstract:

:Coxiella burnetii is a widespread zoonotic bacterial pathogen that causes human Q fever. In vivo, Coxiella displays a tropism for mononuclear phagocytes where it participates in biogenesis of a lysosome-like replication compartment to conduct its obligate intracellular lifestyle. Coxiella actively regulates multiple events during infection, presumably via proteins with effector functions that are delivered to the host cytosol by a Dot/Icm type IV secretion system. Because the organism is currently refractory to genetic manipulation, Coxiella Dot/Icm substrates have been identified using bioinformatics and Legionella pneumophila as a surrogate type IV delivery system. Functional characterization of the biological activity of these effector proteins will dramatically aid our ability to model Coxiella-host cell interactions.

journal_name

Curr Opin Microbiol

authors

Voth DE,Heinzen RA

doi

10.1016/j.mib.2008.11.005

subject

Has Abstract

pub_date

2009-02-01 00:00:00

pages

74-80

issue

1

eissn

1369-5274

issn

1879-0364

pii

S1369-5274(08)00185-9

journal_volume

12

pub_type

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