Separation of mutation avoidance and antirecombination functions in an Escherichia coli mutS mutant.

Abstract excerpt

DNA mismatch repair in Escherichia coli has been shown to be involved in two distinct processes: mutation avoidance, which removes potential mutations arising as replication errors, and antirecombination which prevents recombination between related, but not identical (homeologous), DNA sequences. We show that cells with the mutSDelta800 mutation (which removes the C-terminal 53 amino acids of MutS) on a multicopy...

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