Article
Mutator phenotype due to loss of heterozygosity in diploid yeast strains with mutations in MSH2 and MLH1.
Toxicology letters - 15 Mar 2000
Drotschmann K, Shcherbakova P V, Kunkel T A
Abstract excerpt
Mutations in mismatch repair (MMR) genes predispose humans to cancer. Particularly prevalent are frameshift and point mutations in MSH2 and MLH1, two genes whose products are required for the early steps in MMR. In normal tissues of persons predisposed to hereditary non-polyposis colon cancer (HNPCC), these mutations are usually present in only one allele. In tumor cells of these patients, the second, wild type...
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