Internal tracts of telomeric DNA act as silencers in Saccharomyces cerevisiae

Jeffrey B. Stavenhagen, Virginia A. Zakian

Research output: Contribution to journalArticle

69 Scopus citations

Abstract

Telomeric position effect (TPE) refers to the ability of telomeres to repress the transcription of genes in their vicinity. Internal stretches of C1-3A DNA, the sequence found at Saccharomyces telomeres, also repressed transcription of nearby genes. This repression, hereafter called C1-3A- based silencing, was observed at several chromosomal loci, including on a circular chromosome. The magnitude of C1-3A-based silencing was increased by both proximity to a telomere and increased length of the C1-3A tracts. C1-3A-based silencing was affected by many of the same genes and conditions that influence TPE and acted in an orientation-independent manner. Thus, in yeast, an expanded array of a simple repetitive DNA, C1-3A, is sufficient to promote the assembly of a transcriptionally silent chromosomal domain.

Original languageEnglish (US)
Pages (from-to)1411-1422
Number of pages12
JournalGenes and Development
Volume8
Issue number12
DOIs
StatePublished - Jun 15 1994

All Science Journal Classification (ASJC) codes

  • Genetics
  • Developmental Biology

Keywords

  • Telomeres
  • position effect
  • silencers
  • yeast

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