SOS induction in Escherichia coli by single-stranded DNA of mutant filamentous phage: monitoring by cleavage of LexA repressor

Author:

Higashitani N1,Higashitani A1,Horiuchi K1

Affiliation:

1. Division of Microbial Genetics, National Institute of Genetics, Mishima, Japan.

Abstract

Infection of Escherichia coli in the presence of chloramphenicol with mutant filamentous phage that are defective in the initiation of minus-strand DNA synthesis induces the SOS response as monitored by cellular LexA levels. This observation demonstrates that single-stranded DNA serves as a primary signal for SOS induction in vivo.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

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