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  • Title: Mechanism of interferon action. Expression of reovirus S3 gene in transfected COS cells and subsequent inhibition at the level of protein synthesis by type I but not by type II interferon.
    Author: George CX, Samuel CE.
    Journal: Virology; 1988 Oct; 166(2):573-82. PubMed ID: 2972114.
    Abstract:
    The effect of interferon on the expression of the reovirus serotype 1 Lang strain S3 gene was examined in simian COS cells transfected with the expression vector pSVS3 containing the S3 gene under the control of the SV40 late promoter. When COS cells were treated with type I interferon-alpha 24 hr after transfection, the synthesis of the reovirus S3-encoded sigma NS polypeptide was inhibited about 10-fold as compared to that in untreated control cells. By contrast, under the same conditions, neither the plasmid DNA copy number nor the S3 gene mRNA levels were significantly affected by interferon treatment. Type II interferon-gamma, unlike the type I interferons-alpha, did not affect the rate of synthesis of polypeptide sigma NS in pSVS3-transfected cells.
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