Transcription-induced deletions in plasmid vectors: M13 DNA replication as a source of instability.

Abstract excerpt

We have previously shown that concurrent progression of pBR322 replication and pTac-directed transcription in opposite orientations induces illegitimate recombination events. We tested here the effects of M13 rolling circle replication on the incidence of plasmid deletions. The progression of the M13 replication fork leads to an increase of more than 300-fold in the frequency of transcription-dependent deletion...

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