## Abstract The SOS system in __Escherichia coli__ is induced in response to DNA damage and the arrest of DNA synthesis. Here we show that in AB1157 bacteria starved for arginine, conditions for induction of adaptive mutations, the LexA‐dependent SOS system is induced, but that this occurs only whe
Ultraviolet mutagenesis and the SOS response in Escherichia coli: A personal perspective
✍ Scribed by Evelyn M. Witkin
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 551 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0893-6692
No coin nor oath required. For personal study only.
✦ Synopsis
The study of ultraviolet (UV) mutagenesis in fscherichio coli began with the assumption that genes were likely to be changed at the instant of photon absorption. Over many decades, it became clear that postirradiation cellular activities, including enzymatic DNA repair of UV photo products and error-prone modes of tolerating unrepaired DNA lesions can exert profound influences on the mutagenic outcome of irradiation. Current study focusses on the molecular details of radiationinduced translesion DNA replication as the final event in UV mutagenesis.
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