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. 1986 Dec;60(3):858–867. doi: 10.1128/jvi.60.3.858-867.1986

Genetic lesions involved in temperature sensitivity of the src gene products of four Rous sarcoma virus mutants.

B J Mayer, R Jove, J F Krane, F Poirier, G Calothy, H Hanafusa
PMCID: PMC253306  PMID: 3023675

Abstract

The src genes of four Rous sarcoma virus (RSV) mutants temperature-sensitive (ts) for cell transformation were analyzed. The mutant src genes were cloned into a replication-competent RSV expression vector, and the contribution of individual mutations to the ts phenotype was assessed by in vitro recombination with wild-type src sequences. Three of the mutants, which were derived from the Schmidt-Ruppin strain of RSV, each encoded two mutations within the conserved kinase domain. In all three cases, one of the two mutations was an identical valine to methionine change at amino acid position 461. Virus encoding recombinant src genes containing each of these mutations alone were not ts for transformation, demonstrating that two mutations are required for temperature sensitivity. The sequence of the src gene of the Bryan high-titer strain of RSV was determined and compared with that of the fourth ts mutant which was derived from it, again revealing two lesions in the kinase domain of the mutant.

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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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