Article
Construction of a genetically defined Salmonella typhi Ty2 aroA, aroC mutant for the engineering of a candidate oral typhoid-tetanus vaccine.
Vaccine - 1 Jan 1992
Chatfield S N, Fairweather N, Charles I, Pickard D, Levine M, Hone D, Posada M, Strugnell R A, Dougan G
Abstract excerpt
The construction of a Salmonella typhi Ty2 strain harbouring defined deletions in both the aroA and aroC genes is described. These deletions have been fully defined at the molecular level by DNA sequencing and have been introduced in such a way that no foreign DNA remains in the S. typhi genome. This strain is attenuated in mice when given by the intraperitoneal route suspended in hog gastric mucin and is...
Topics
- Administration, Oral
- Amino Acid Sequence
- Animals
- Chromosome Deletion
- Chromosome Mapping
- Cloning, Molecular
- DNA Transposable Elements
- DNA, Bacterial
- Escherichia coli
- Gene Expression