Conjugative transfer by the virulence system of Legionella pneumophila

Joseph P. Vogel, Helene L. Andrews, Swee Kee Wong, Ralph R. Isberg

Research output: Contribution to journalArticle

547 Scopus citations

Abstract

Legionella pneumophila, the causative agent of Legionnaires' pneumonia, replicates within alveolar macrophages by preventing phagosome-lysosome fusion. Here, a large number of mutants called dot (defective for organelle trafficking) that were unable to replicate intracellularly because of an inability of the bacteria to alter the endocytic pathway of macrophages were isolated. The dot virulence genes encoded a large putative membrane complex that functioned as a secretion system that was able to transfer plasmid DNA from one cell to another.

Original languageEnglish
Pages (from-to)873-876
Number of pages4
JournalScience
Volume279
Issue number5352
DOIs
StatePublished - Feb 6 1998
Externally publishedYes

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