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. 1978 Nov;28(2):457–465. doi: 10.1128/jvi.28.2.457-465.1978

Acquisition of oncogenicity by endogenous mouse type C viruses: effects of variations in env and gag genes.

S G Devare, U R Rapp, G J Todaro, J R Stephenson
PMCID: PMC354295  PMID: 82624

Abstract

Several dual-tropic isolates derived from the thymuses of preleukemic or leukemic AKR mice and a more recrnt group of viruses generated by in vitro or in vivo passage of a poorly infectious endogenous virus of C3H mouse cells have been shown to be highly oncogenic. By analysis of the immunological properties of their gag gene-coded structural proteins, each of the AKR-derived isolates and two dual-tropic C3H-derived isolates were found to closely resemble AKR murine leukemia virus. In contrast, gag gene-coded proteins of two other leukemogenic isolates of C3H origin, including one ecotropic and one dual-tropic virus, were indistinguishable from those of Moloney murine leukemia virus. All of the oncogenic isolates, including those of AKR and C3H origin, were found to possess common envelope glycoprotein determinants of a unique class not shared by the nononcogenic ecotropic viruses from which they were derived. These findings support the possibility that oncogenic variants of endogenous ecotropic mouse type C viruses are derived by genetic recombination. This recombinational event appears to involve the acquisition, by different ecotropic viruses, of a common class of endogenous virus-coded envelope glycoprotein determinants which are presumably required, but not necessarily sufficient, for oncogenicity.

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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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