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Chromatin remodeling can facilitate the recruitment of RNA polymerase II (Pol II) to targeted promoters, as well as enhancing the level of transcription. Here, we describe a further key role for chromatin remodeling in transcriptional termination. Using a genetic screen in S. pombe, we identified the CHD-Mi2 class chromatin remodeling ATPase, Hrp1, as a termination factor. In S. cerevisiae, we show that transcriptional termination and chromatin structure at the 3' ends of three genes all depend on the activity of the Hrp1 homolog, Chd1p, either alone or redundantly with the ISWI ATPases, Isw1p, and Isw2p. We suggest that chromatin remodeling of termination regions is a necessary prelude to efficient Pol II termination.

Type

Journal article

Journal

Mol Cell

Publication Date

12/2002

Volume

10

Pages

1441 - 1452

Keywords

3' Untranslated Regions, Binding Sites, Chromatin, DNA, Fungal, Gene Expression Regulation, Enzymologic, Gene Expression Regulation, Fungal, Micrococcal Nuclease, RNA Polymerase II, Saccharomyces cerevisiae, Schizosaccharomyces, Transcription, Genetic