Article
Effect of endogenous carotenoids and defective RpoS sigma factor on spontaneous mutation under starvation conditions in Escherichia coli: evidence for the possible involvement of singlet oxygen.
Mutation research - 17 Jul 1998
Bridges B A, Timms A
Abstract excerpt
Under starvation conditions, a variety of stationary phase genes are up-regulated under the control of the stationary phase sigma factor RpoS including at least two peroxidases and a protective DNA binding protein Dps. Previous work suggested that the reversion to prototrophy of certain amino aci...
Topics
- Amino Acids
- Bacterial Proteins
- Carotenoids
- Catalase
- DNA Damage
- DNA, Bacterial
- Escherichia coli
- Free Radical Scavengers
- Genes, Bacterial
- Mutagens
- Mutation
- Oxygen
- Plasmids
- Reactive Oxygen Species
- Sigma Factor
- Singlet Oxygen