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. 1986 Nov;60(2):599–606. doi: 10.1128/jvi.60.2.599-606.1986

Abelson murine leukemia virus variants with increased oncogenic potential.

K Murtagh, G Skladany, J Hoag, N Rosenberg
PMCID: PMC288931  PMID: 3021994

Abstract

A number of strains of Abelson murine leukemia virus (A-MuLV) with various abilities to transform cells have been identified. Among these is the A-MuLV-P90 strain, a mutant derived from A-MuLV-P120 that encodes an A-MuLV protein missing sequences that are normally present at the extreme carboxy terminus of P120 (N. Rosenberg and O. N. Witte, J. Virol. 33:340-348, 1980). This virus transforms NIH 3T3 cells efficiently but does not transform a high frequency of lymphoid cells in vitro or in vivo. In this communication, we show that of the relatively few tumors induced by A-MuLV-P90 nearly all contained new variant viruses that stably expressed either larger or smaller A-MuLV proteins. Strains that expressed larger A-MuLV proteins behaved like A-MuLV-P120 in transformation assays, whereas those expressing smaller A-MuLV proteins induced a high frequency of tumors after a short latent period in vivo but failed to transform large numbers of lymphoid cells in vitro. Thus, these latter viruses separated the requirements for in vitro transformation of lymphoid cells from those for tumor induction. All of the variants differed from A-MuLV-P90 in the carboxy-terminal region of the A-MuLV protein, suggesting that sequences in this region play a key role in the ability of the virus to interact with hematopoietic cells in vivo and in vitro.

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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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