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Trends Genet. 2000 Aug;16(8):345-51.

The Swi/Snf family nucleosome-remodeling complexes and transcriptional control.

Author information

1
Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. priya@genetics.med.harvard.edu

Abstract

The Swi/Snf family of nucleosome-remodeling complexes has been shown to play important roles in gene expression throughout eukaryotes. Genetic and biochemical studies previously suggested that Swi/Snf activates transcription by remodeling nucleosomes, thereby permitting increased access of transcription factors for their binding sites. Recent studies have identified additional Swi/Snf biochemical activities and have suggested possible mechanisms by which Swi/Snf is targeted to specific promoters. Surprisingly, studies have also revealed that, besides being necessary for activation, Swi/Snf is required for transcriptional repression of some genes. These analyses have transformed our understanding of the function of the Swi/Snf family of complexes and suggest that they control transcription in diverse ways.

PMID:
10904263
DOI:
10.1016/s0168-9525(00)02060-6
[Indexed for MEDLINE]

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