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. 1976 Sep;73(9):3107–3111. doi: 10.1073/pnas.73.9.3107

Interferon, double-stranded RNA, and protein phosphorylation.

B Lebleu, G C Sen, S Shaila, B Cabrer, P Lengyel
PMCID: PMC430945  PMID: 1067606

Abstract

We reported earlier that the addition of double-stranded RNA and ATP increases the endonuclease activity more in an extract of Ehrlich ascites tumor cells which have been treated with an interferon preparation than in a comparable extract from control cells. We report here that the addition of double-stranded RNA to an extract from Ehrlich ascites tumor cells which have been treated with an interferon preparation [or with the interferon inducer poly(I)-poly(C)] promotes the phosphorylation by [gamma-32P]ATP of at least two proteins: P1 (molecular weight of 64,000) and P2 (molecular weight of 37,000). Double-stranded RNA also promotes the phosphorylation of at least one (i.e., P1) of these two proteins in an extract from cells which have not been treated with interferon, but the extent of phosphorylation is much smaller. Double-stranded RNA which has been degraded by RNase III, or DNA, does not promote the phosphorylation.

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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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