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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1988-2-17
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pubmed:abstractText |
An Eco-RI restriction fragment length polymorphism occurring in a DNA fragment containing the first exon of the murine KRAS2 gene was shown to correlate with the inherited susceptibility of inbred strains of mice to urethan (CAS: 51-79-6)-induced pulmonary adenomas. Eco-RI digestion of murine DNA yielded four KRAS2-specific fragments. Polymorphic variation occurred in the smallest molecular-weight fragment with alleles of either 0.70 or 0.55 kb in size. Genotyping of 14 inbred strains of mice revealed a correlation between KRAS2 Eco-RI polymorphic variation and the differential susceptibility among inbred strains to development of pulmonary adenomas. Strains with a high incidence of pulmonary adenomas, either spontaneously occurring or in response to carcinogen induction, had the 0.55-kb KRAS2 allele whereas adenoma-resistant strains had the 0.70-kb allele. Analysis of a series of recombinant inbred strains (AXB, BXA) that developed from reciprocal crosses between a highly susceptible strain (A/J) and a highly resistant strain (C57BL/6J) revealed a statistically significant threefold difference in lung tumor susceptibility on the basis of KRAS2 genotype. Further analysis of individual F2 mice of a C57BL/6 female X A/J male cross also demonstrated a threefold difference in tumor susceptibility on the basis of KRAS2 allelic variation.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0027-8874
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
79
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1351-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2891865-Adenoma,
pubmed-meshheading:2891865-Animals,
pubmed-meshheading:2891865-Crosses, Genetic,
pubmed-meshheading:2891865-Disease Susceptibility,
pubmed-meshheading:2891865-Exons,
pubmed-meshheading:2891865-Female,
pubmed-meshheading:2891865-Genotype,
pubmed-meshheading:2891865-Lung Neoplasms,
pubmed-meshheading:2891865-Male,
pubmed-meshheading:2891865-Mice,
pubmed-meshheading:2891865-Mice, Inbred Strains,
pubmed-meshheading:2891865-Oncogenes,
pubmed-meshheading:2891865-Polymorphism, Restriction Fragment Length,
pubmed-meshheading:2891865-Species Specificity
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pubmed:year |
1987
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pubmed:articleTitle |
KRAS2 as a genetic marker for lung tumor susceptibility in inbred mice.
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pubmed:affiliation |
Department of Biology, Yale University, New Haven, CT 06510.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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