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. 1993 Jul 15;90(14):6621-5.
doi: 10.1073/pnas.90.14.6621.

Transcription factors are required for the meiotic recombination hotspot at the HIS4 locus in Saccharomyces cerevisiae

M A White  1 , M Dominska, T D Petes
Affiliations

Transcription factors are required for the meiotic recombination hotspot at the HIS4 locus in Saccharomyces cerevisiae

M A White et al. Proc Natl Acad Sci U S A. .

Abstract

The full activity of a recombination initiation site located 5' of HIS4 requires the binding of the transcription factors RAP1, BAS1, and BAS2. Two RAP1 binding sites can substitute for the wild-type initiation site. A 51-bp region of telomeric DNA inserted upstream of either HIS4 or ARG4 very strongly stimulates recombination. We suggest that the ability of transcription factors to induce recombination is a consequence of an altered chromatin structure that favors the entry of proteins that initiate recombination, rather than an effect of these factors on transcription.

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