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Article

Expression of Vi antigen in Escherichia coli K-12: characterization of ViaB from Citrobacter freundii and identity of ViaA with RcsB.

Journal of bacteriology - 1 Sept 1992

Houng H S, Noon K F, Ou J T, Baron L S

Abstract excerpt

The Vi antigen in Salmonella typhi is stably expressed and may act to protect the strain against the defensive system of the host. Citrobacter freundii, not usually a common human pathogen, also expresses the Vi antigen but expresses it unstably, exhibiting a reversible transition between the Vi+ and Vi- states. Two widely separated chromosomal regions, ViaA and ViaB, are needed for Vi synthesis. Escherichia coli...

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Identifiers

PMID: 1522067
DOI: 10.1128/jb.174.18.5910-5915.1992
PMCID: PMC207128

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

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Expression of Vi antigen in Escherichia coli K-12: characterization of ViaB from Citrobacter freundii and identity of ViaA with RcsB.PMID 1522067Read ↗

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