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. 1971 Nov;8(5):630–642. doi: 10.1128/jvi.8.5.630-642.1971

Ribonuclease-Sensitive Deoxyribonucleic Acid Polymerase Activity in Uninfected Rat Cells and Rat Cells Infected with Rous Sarcoma Virus

John M Coffin 1, Howard M Temin 1
PMCID: PMC376240  PMID: 4332135

Abstract

Rat cells infected with the B77 strain of avian sarcoma virus [R(B77) cells] produced no virus-like particles but contained information for the production of infectious B77 virus. 3H-labeled deoxyribonucleic acid (DNA) product of the B77 virus endogenous DNA polymerase system was used to determine the relative amounts of B77 virus-specific ribonucleic acid (RNA) in B77 virus-infected chicken and R(B77) cells. R(B77) cells were found to contain much less B77 virus RNA than did B77 virus-infected chicken cells. Ribonuclease-sensitive DNA polymerase activity was present in high-speed pellet fractions from Nonidet extracts of B77 virus-infected rat cells. Similar preparations from some uninfected rat cells contained lesser amounts of a similar ribonuclease-sensitive DNA polymerase activity. The endogenous template for the DNA polymerase activity in high-speed pellet fractions from R(B77) cells was not related to B77 virus RNA or to RNA of a rat C-type virus. The DNA product of the endogenous DNA polymerase in high-speed pellet fractions of R(B77) cells hybridized to a small extent with RNA from the same fraction and to a similar extent with RNA from uninfected rat 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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