Matic I, Babic A, Radman M. 2-aminopurine allows interspecies recombination by a reversible inactivation of the Escherichia coli mismatch repair system.
J Bacteriol 2003;
185:1459-61. [PMID:
12562818 PMCID:
PMC142871 DOI:
10.1128/jb.185.4.1459-1461.2003]
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Abstract
2-Aminopurine treatment of Escherichia coli induces a reversible phenotype of DNA mismatch repair deficiency. This transient phenotype results in a 300-fold increase in the frequency of interspecies conjugational recombination with a Salmonella enterica serovar Typhimurium Hfr donor. This method can be used for the generation of biodiversity by allowing recombination between diverged genes and genomes.
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