Saccharomyces cerevisiae SPT3 gene is required for transposition and transpositional recombination of chromosomal Ty elements.

J. D. Boeke, C. A. Styles, G. R. Fink

Research output: Contribution to journalArticle

Abstract

Mutations in the Saccharomyces cerevisiae SPT3 gene have dramatic effects on the expression of Ty elements and genes adjacent to the element. The SPT3 gene is essential for Ty transposition, because transposition of chromosomal Ty elements ceased when the SPT3 gene was replaced with the frameshift mutation spt3-101. Presumably, the elimination of transposition was due to the effect of the SPT3 gene product on Ty transcription; the transcripts of chromosomal Ty elements were largely abolished in the spt3-101 strain (F. Winston, K. J. Durbin, and G. R. Fink, Cell 39:675-682, 1984). Ty transcription in an spt3-101 strain could be reestablished by introduction of the pGTyH3 plasmid, in which transcription of the Ty element TyH3 is under the control of the GAL1 promoter; these plasmid-derived Ty transcripts were SPT3-independent. Ty transposition resumed after galactose induction in spt3-101 strains containing the pGTyH3 plasmid. In spt3 mutants nearly all of the resulting transposition events derived from pGTyH3 plasmids and not from chromosomal elements.

Original languageEnglish (US)
Pages (from-to)3575-3581
Number of pages7
JournalMolecular and Cellular Biology
Volume6
Issue number11
StatePublished - Nov 1986
Externally publishedYes

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Genetic Recombination
Saccharomyces cerevisiae
Plasmids
Genes
Frameshift Mutation
Essential Genes
Galactose
Mutation

ASJC Scopus subject areas

  • Cell Biology
  • Genetics
  • Molecular Biology

Cite this

Saccharomyces cerevisiae SPT3 gene is required for transposition and transpositional recombination of chromosomal Ty elements. / Boeke, J. D.; Styles, C. A.; Fink, G. R.

In: Molecular and Cellular Biology, Vol. 6, No. 11, 11.1986, p. 3575-3581.

Research output: Contribution to journalArticle

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