The sequences of a collection of 261 spontaneous lacI- mutants recovered in a PolA- strain of Escherichia coli have indicated an increase in the frequency of most classes of mutation in this strain. Among base substitutions in lacI, a preference for transversions over transitions was observed. In ad
DNA sequence analysis of spontaneous histidine mutations in a polA1 strain of Escherichia coli K12 suggests a specific role of the GTGG sequence
β Scribed by Jankovic, Mila ;Kostic, Tatjana ;Savic, Dragutin J.
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 633 KB
- Volume
- 223
- Category
- Article
- ISSN
- 0026-8925
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The malB region in E. coli is composed of two operons, malEFG and malK-lamB, transcribed divergently from a control region located between the malE and malK genes. We have established the DNA sequence of a 600 base pair segment which contains the sites necessary for initiation of transcription of th
Streptomyces glaucescens exhibits a high degree of genetic instability. A sequence of 7.2 kb has been found which is present in a few tandemly repeated copies in the wild type strain GLA 0 and is amplified to ca. 500 copies per genome in the mutant strain GLA 1204. This sequence was cloned in Escher