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Article

The Vi antigen of Salmonella typhi: molecular analysis of the viaB locus.

Journal of general microbiology - 1 Feb 1992

Kolyva S, Waxin H, Popoff M Y

Abstract excerpt

Strains of Salmonella typhi isolated from the blood of patients with typhoid fever invariably express a capsular polysaccharide, termed the Vi antigen. Vi antigen expression is controlled by two separate chromosomal loci, viaA and viaB. The viaA locus is commonly found in enteric bacteria. In contrast, the viaB locus appears to be specific to Vi-expressing strains of Salmonella and Citrobacter. Here the cloning,...

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Identifiers

PMID: 1564441
DOI: 10.1099/00221287-138-2-297

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

Source receipt: pubmed, retrieved 7 Sept 2026.

Related research

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The Vi antigen of Salmonella typhi: molecular analysis of the viaB locus.PMID 1564441Read ↗

Role of the viaB locus in synthesis, transport and expression of Salmonella typhi Vi antigen.Semantic proximity Read ↗

Molecular cloning of the ViaB region of Salmonella typhi.Semantic proximity Read ↗

Molecular characterization of the viaB locus encoding the biosynthetic machinery for Vi capsule formation in Salmonella Typhi.Semantic proximity Read ↗

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

A genomewide mutagenesis screen identifies multiple genes contributing to Vi capsular expression in Salmonella enterica serovar Typhi.Semantic proximity Read ↗

The Salmonella enterica serovar Typhi Vi capsule and self-association pili share controls on expression.Semantic proximity Read ↗

A Conserved Acetyl Esterase Domain Targets Diverse Bacteriophages to the Vi Capsular Receptor of Salmonella enterica Serovar TyphiSemantic proximity Read ↗

Detection of Vi-Negative <i>Salmonella enterica</i> Serovar Typhi in the Peripheral Blood of Patients with Typhoid Fever in the Faisalabad Region of PakistanSemantic proximity Read ↗

Positive autoregulation of vipR expression in ViaB region-encoded Vi antigen of Salmonella typhi.Semantic proximity Read ↗

Vi-deficient and nonfimbriated mutants of Salmonella typhi agglutinate human blood type antigens and are hyperinvasive.Semantic proximity Read ↗

Characterization of defined ompR mutants of Salmonella typhi: ompR is involved in the regulation of Vi polysaccharide expression.Semantic proximity Read ↗

Genetic and DNA sequence analysis of the Salmonella typhimurium virulence plasmid gene encoding the 28,000-molecular-weight protein.Semantic proximity Read ↗

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