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. 1979 Apr;76(4):1677–1681. doi: 10.1073/pnas.76.4.1677

Restriction enzyme analysis of mouse cellular type C viral DNA: emergence of new viral sequences in spontaneous AKR/J lymphomas.

E Canaani, S A Aaronson
PMCID: PMC383453  PMID: 221902

Abstract

The topography of endogenous type C viral sequences in mouse cellular DNA was investigated by EcoRI nuclease restriction and application of the Southern blotting technique. The DNAs from one outbred and five inbred strains were resolved into 20-35 fragments containing viral sequences, distributed in unique, though related, patterns for each mouse strain. Different normal tissues from the same animal were indistinguishable in their DNA patterns, suggesting that tissue differentiation is not associated with gross alteration in the topography of endogenous type C virus sequences. Tumor tissues from spontaneous lymphomas of AKR/J mice were similarly analyzed. In four out of seven individual tumors we detected the emergence of one or two new virus-containing DNA fragments. The mass of these fragment varied, indicating different insertion sites of the new viral sequences. The detection of these new viral sequences suggests that each tumor was composed of descendents of only one or a few cells.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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