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+...
Topics
- Alleles
- Antigens, Bacterial
- Bacterial Capsules
- Bacterial Proteins
- Citrobacter freundii
- Cloning, Molecular
- Escherichia coli
- Escherichia coli Proteins
- Gene Expression Regulation, Bacterial
- Genes, Regulator
- Genetic Complementation Test
- Mutagenesis, Insertional
- Polysaccharides, Bacterial
- Rec A Recombinases
- Restriction Mapping
- Transcription Factors
- Virulence