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. 1983 Feb;45(2):659–664. doi: 10.1128/jvi.45.2.659-664.1983

Genomic and copy-back 3' termini in Sendai virus defective interfering RNA species.

G G Re, K C Gupta, D W Kingsbury
PMCID: PMC256460  PMID: 6300428

Abstract

Direct sequencing of nine Sendai virus defective interfering RNA species revealed two kinds of 3'-terminal sequences. Six RNA species had 3' termini identical to the virus genome (negative strand), confirming that internal deletions are a frequent cause of Sendai virus defectiveness. The other three RNA species had 3'-terminal sequences identical to that described as the complement of the 5' terminus of the virus genome (R. A. Lazzarini, J. D. Keene, and M. Schubert, Cell 26:145-154, 1981), indicating that they are of the copy-back type. Extensive homology between these two types of 3' sequences evidently accounts for the ability of the copy-back sequence to function as an initiation signal for viral RNA replication. There may not be a selective advantage of one type of terminus over the other, since one defective interfering strain possessed two RNA species, one of which had the genomic 3' terminus and the other copy-back type.

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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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