Amber mutants of Escherichia coli K-12 affected in the structural gene (rpoD) for th a subunit ofRNA polymerase have been obtained from a strain harboring a temperature-sensitive amber suppressor (supF-Ts6) which is active only at low temperatures. These mutants grow normally at low temperature (30
On the role of the Escherichia coli RNA polymerase sigma factor in T4 phage development
โ Scribed by Zograff, Yuri N.
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 226 KB
- Volume
- 183
- Category
- Article
- ISSN
- 0026-8925
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A mutant of Escherichia coli K12 is described in which sigma and alpha subunits of the DNA-dependent RNA polymerase (EC 2.7.7.6) are produced at the rates much higher than in the normal strain. The rate of synthesis for sigma subunit was found to be at least 10-times higher, though the rapid degrada
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