Article
A novel mutator of Escherichia coli carrying a defect in the dgt gene, encoding a dGTP triphosphohydrolase.
Journal of bacteriology - 1 Nov 2008
Gawel Damian, Hamilton Michael D, Schaaper Roel M
Abstract excerpt
A novel mutator locus in Escherichia coli was identified from a collection of random transposon insertion mutants. Several mutators in this collection were found to have an insertion in the dgt gene, encoding a previously characterized dGTP triphosphohydrolase. The mutator activity of the dgt mutants displays an unusual specificity. Among the six possible base pair substitutions in a lacZ reversion system, the...
Topics
- Chromosomes, Bacterial
- DNA Transposable Elements
- Escherichia coli
- Escherichia coli Proteins
- Models, Genetic
- Mutation
- Phosphoric Monoester Hydrolases
- Rec A Recombinases
