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. 1983 Mar;153(3):1301–1307. doi: 10.1128/jb.153.3.1301-1307.1983

A new gene (alkB) of Escherichia coli that controls sensitivity to methyl methane sulfonate.

H Kataoka, Y Yamamoto, M Sekiguchi
PMCID: PMC221777  PMID: 6337994

Abstract

Seven mutants of Escherichia coli were isolated that are sensitive to methyl methane sulfonate but not to UV light. They exhibited decreased host cell reactivation capacity for methyl methane sulfonate-treated phage lambda. Five of the mutations were mapped in the same region as alkA (previously called alk) and may indeed be identical to known mutations. Another mutation was found near nalA, and the gene responsible was named alkB. Its phenotype was different from that of ada, since the alkB mutant exhibited a normal adaptive response to N-methyl-N'-nitro-N-nitrosoguanidine. A third type of mutation was mapped near polA, but this mutant contained an almost normal level of DNA polymerase I activity.

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Selected References

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