Modulation of gene expression by promoter mutants of the lambdacI857/pRM/pR system.

Abstract excerpt

Gene expression driven by the p(R) promoter of the lambdacI857/p(RM)/p(R) system results from inactivation of the temperature-sensitive CI857 repressor. The CI857 repressor, whose gene is transcribed by the divergently orientated p(RM) promoter, is destabilised at temperatures above 30 degrees C. In this study, the lambdacI857/p(RM)/p(R) system was modified by the introduction of a single (A-32G) and a double...

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