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Simultaneous Identification of Bacterial Virulence Genes by Negative Selection

Hensel, Michael, Shea, Jacqueline E., Gleeson, Colin, Jones, Michael D., Dalton, Emma, Holden, David W.·1995·Science

Abstract

An insertional mutagenesis system that uses transposons carrying unique DNA sequence tags was developed for the isolation of bacterial virulence genes. The tags from a mixed population of bacterial mutants representing the inoculum and bacteria recovered from infected hosts were detected by amplification, radiolabeling, and hybridization analysis. When applied to a murine model of typhoid fever caused by Salmonella typhimurium , mutants with attenuated virulence were revealed by use of tags that were present in the inoculum but not in bacteria recovered from infected mice. This approach resulted in the identification of new virulence genes, some of which are related to, but functionally distinct from, the inv/spa family of S. typhimurium .

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Metadata

Authors
Hensel, M., Shea, J. E., Gleeson, C., Jones, M. D., Dalton, E., & Holden, D. W.
Venue
Science
Published
1995-07-21
Volume
269
Issue
5222
Pages
400-403
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2088732289
Cited by
1,198
References
0
FWCI
17.64
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Simultaneous Identification of Bacterial Virulence Genes by Negative Selection. https://app.cochat.ai/papers/10.1126/science.7618105
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Hensel, M., Shea, J. E., Gleeson, C., Jones, M. D., Dalton, E., & Holden, D. W. (1995). Simultaneous Identification of Bacterial Virulence Genes by Negative Selection. Science. https://doi.org/10.1126/science.7618105

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