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. 1980 Jan 11;8(1):153–168. doi: 10.1093/nar/8.1.153

Evidence for the role of double-helical structures in the maturation of simian virus-40 messenger RNA.

N H Chiu, W B Bruszewski, N P Salzman
PMCID: PMC327249  PMID: 6243778

Abstract

Simian Virus-40 infected BSC-1 cells were pretreated with glucosamine and briefly pulsed with [3H]-uridine. The labeling can be halted instantaneously by the addition of cold uridine and glucosamine. Under these pulse-chase conditions, the inhibitory effects of the intercalating agent proflavine on the processing of prelabeled nuclear RNA precursors were examined in vivo. Proflavine inhibits the cleavage of viral nuclear RNA precursors. However, turnover of the mature viral mRNAs in the cytoplasm is not inhibited. The effect of proflavine on processing is not a secondary consequence of its inhibition of protein synthesis. The data suggest that base-paired secondary structures in the primary transcripts are important processing signals in the generation of viral mRNA molecules.

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Selected References

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