Null Mutation of the dam or seqA Gene Suppresses Temperature-Sensitive Lethality but Not Hypersensitivity to Novobiocin of muk Null Mutants

AUTOR(ES)
FONTE

American Society for Microbiology

RESUMO

Escherichia coli mukF, mukE, and mukB null mutants have common phenotypes such as temperature-dependent colony formation, anucleate cell production, chromosome cutting by septum closure, and abnormal localization of SeqA-DNA clusters. We show here that the associated muk null mutations cause hypersensitivity to novobiocin. Null mutation of either dam or seqA suppressed partially the temperature-sensitive lethality but failed to suppress the anucleate cell production and the hypersensitivity to novobiocin caused by muk null mutations.

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