Article
Counterselection of GATC sequences in enterobacteriophages by the components of the methyl-directed mismatch repair system.
Journal of molecular evolution - 1 Aug 1991
Deschavanne P, Radman M
Abstract excerpt
Weak to severe deficit of GATC sequences in the DNA of enterobacteriophages appears to be correlated with their undermethylation during growth in dam+ (GATC ade-methylase) bacteria. This observation is corroborated by the sequence analysis showing no evidence for site-specific mutagenicity of 6meAde. The MutH protein of the methyl-directed mismatch repair system recognizes and cleaves the undermethylated GATC...
Topics
- Base Sequence
- Coliphages
- DNA Repair
- DNA, Viral
- Escherichia coli
- Methylation
- Mutation
