Article
Precise excision of Tn10 in Salmonella typhimurium: effects of mutations in the polA, dam, mutH and mutB genes and of methionine or ethionine in the plating medium.
Mutation research - 1 Jul 1991
Hafner L M, MacPhee D G
Abstract excerpt
Precise excision of Tn10 occurs at significantly elevated frequencies in cultures of the polA7 mutant strain of Salmonella typhimurium, is further increased in polA7 dam-1 and polA7 mutB strains and decreased in a polA7 mutH background. The numbers of precise excision events occurring in polA7 strains are also significantly increased when methionine (20 micrograms/ml or less) is present in the medium but...
Topics
- DNA Repair
- DNA Transposable Elements
- DNA, Bacterial
- Ethionine
- Genes, Bacterial
- Methionine
- Methylation
- Mutation
- Salmonella typhimurium