Saccharomyces cerevisiae killer virus transcripts contain template-coded polyadenylate tracts.

E. M. Hannig, D. J. Thiele, Michael J Leibowitz

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The M double-stranded RNA component of type 1 killer strains of the yeast Saccharomyces cerevisiae contains an internal 200-base pair adenine- and uracil-rich region. The plus strands of this viral genomic RNA contain an internal adenine-rich region which allows these strands to bind to polyuridylate-Sepharose as tightly as do polyadenylated RNAs with 3'-terminal polyadenylated tracts of 70 to 100 residues. Internal template coding of an adenine-rich tract in positive polarity in vivo and in vitro transcripts of M double-stranded RNA may serve as an alternate method of transcript polyadenylation. The 3'-terminal residue of the in vitro m transcript is a non-template-encoded purine residue. The 5' terminus of this transcript is involved in a stem-and-loop structure which includes an AUG initiation codon, along with potential 18S and 5.8S rRNA binding sites. Except for the 3'-terminal residue, transcription in in vitro shows complete fidelity.

Original languageEnglish (US)
Pages (from-to)101-109
Number of pages9
JournalMolecular and Cellular Biology
Volume4
Issue number1
StatePublished - Jan 1984
Externally publishedYes

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Adenine
Saccharomyces cerevisiae
Double-Stranded RNA
Viruses
Polyadenylation
Initiator Codon
Uracil
Viral RNA
Base Pairing
Sepharose
Yeasts
Binding Sites
Messenger RNA
In Vitro Techniques

ASJC Scopus subject areas

  • Cell Biology
  • Genetics
  • Molecular Biology

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Saccharomyces cerevisiae killer virus transcripts contain template-coded polyadenylate tracts. / Hannig, E. M.; Thiele, D. J.; Leibowitz, Michael J.

In: Molecular and Cellular Biology, Vol. 4, No. 1, 01.1984, p. 101-109.

Research output: Contribution to journalArticle

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