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The effect of cordycepin on the multiplication of Semliki Forest virus and on polyadenylation of viral RNA


, : The effect of cordycepin on the multiplication of Semliki Forest virus and on polyadenylation of viral RNA. Archives of Virology 54(1-2): 95-106

Cordycepin (3'-deoxyadenosine), at a concentration of 20 microgram/ml, has a marked effect on Semliki Forest virus multiplication. The appearance of plaque forming units is delayed by about 2 hours and the yield greatly reduced. The incorporation of [3H] uridine into intracellular viral RNAs reaches less than 50 per cent of controls. However, no specific effect on poly (A) synthesis could be detected. The binding efficiency of viral RNAs on nitrocellulose membranes and poly (U) sepharose is not affected by cordycepin. The average poly (A) length of total intracellular viral RNA was calculated on the basis of the ratio of the radioactivity of adenosine-monophosphate: adenosine and found to be about 35 nucleotides in treated and untreated cells.

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PMID: 302113


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