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Infection and Immunity, March 2002, p. 1619-1622, Vol. 70, No. 3
0019-9567/02/$04.00+0     DOI: 10.1128/IAI.70.3.1619-1622.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Analyses of the Evolutionary Distribution of Salmonella Translocated Effectors

Imke Hansen-Wester,1 Bärbel Stecher,2 and Michael Hensel1*

Institut für Klinische Mikrobiologie, Immunologie und Hygiene, FAU Erlangen-Nürnberg, Erlangen Lehrstuhl für Bakteriologie, Max von Pettenkofer-Institut für Hygiene und Medizinische Mikrobiologie, LMU München, Munich, Germany

Received 28 November 2001/ Accepted 13 December 2001

The type III secretion system encoded by Salmonella pathogenicity island 2 (SPI2) translocates Salmonella translocated effectors (STE) into host cells. STE are encoded by genes outside of SPI2. The distribution of STE loci within the salmonellae was investigated. In contrast to the SPI2 locus that is conserved within Salmonella enterica, STE loci show a variable distribution. In addition to other virulence determinants, the possession of various sets of STE loci may contribute to the different host ranges and pathogenic potentials of S. enterica serovars.

* Corresponding author. Mailing address: Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Friedrich-Alexander-Universität Erlangen-Nürnberg, Wasserturmstr. 3-5, D-91054 Erlangen, Germany. Phone: 49 9131 85 23640. Fax: 49 9131 85 22531. E-mail: hensel{at}mikrobio.med.uni-erlangen.de.

Infection and Immunity, March 2002, p. 1619-1622, Vol. 70, No. 3
0019-9567/02/$04.00+0     DOI: 10.1128/IAI.70.3.1619-1622.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



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