Conditional induction ofλprophage inexrAmutants ofEscherichia coli
- 14 April 1971
- journal article
- Published by Hindawi Limited in Genetics Research
- Vol. 17 (2), 161-163
- https://doi.org/10.1017/s0016672300012155
Abstract
Strains ofEscherichia coliwhich contain the UV sensitivity geneexrA, repress UV induction ofλprophage in a novel manner. WhileexrA+strains can be induced by UV irradiation and express this induction in a 2 h period,exrAmutants delay the expression of induction for almost 4 h, and the induction maximum is approximately 10% of the wild-type value. The kinetics of the delayed induction and superinfection experiments indicate that the lifting of immunity and induction ofλprophage occur simultaneously.Keywords
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