Abstract
DNA segments that actively regulate transcription in vivo are typically characterized by eviction of nucleosomes from chromatin and are experimentally identified by their hypersensitivity to nucleases. Here we demonstrate a simple procedure for the isolation of nucleosome-depleted DNA from human chromatin, termed FAIRE (Formaldehyde-AssistedIsolation ofRegulatoryElements). To perform FAIRE, chromatin is crosslinked with formaldehyde in vivo, sheared by sonication, and phenol-chloroform extracted. The DNA recovered in the aqueous phase is fluorescently labeled and hybridized to a DNA microarray. FAIRE performed in human cells strongly enriches DNA coincident with the location of DNaseI hypersensitive sites, transcriptional start sites, and active promoters. Evidence for cell-type–specific patterns of FAIRE enrichment is also presented. FAIRE has utility as a positive selection for genomic regions associated with regulatory activity, including regions traditionally detected by nuclease hypersensitivity assays.
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Dates
Type | When |
---|---|
Created | 18 years, 8 months ago (Dec. 19, 2006, 10:09 p.m.) |
Deposited | 7 months, 3 weeks ago (Jan. 12, 2025, 12:28 p.m.) |
Indexed | 12 minutes ago (Sept. 3, 2025, 6:45 a.m.) |
Issued | 18 years, 8 months ago (Dec. 19, 2006) |
Published | 18 years, 8 months ago (Dec. 19, 2006) |
Published Online | 18 years, 8 months ago (Dec. 19, 2006) |
Published Print | 18 years, 3 months ago (June 1, 2007) |
@article{Giresi_2006, title={FAIRE (Formaldehyde-Assisted Isolation of Regulatory Elements) isolates active regulatory elements from human chromatin}, volume={17}, ISSN={1088-9051}, url={http://dx.doi.org/10.1101/gr.5533506}, DOI={10.1101/gr.5533506}, number={6}, journal={Genome Research}, publisher={Cold Spring Harbor Laboratory}, author={Giresi, Paul G. and Kim, Jonghwan and McDaniell, Ryan M. and Iyer, Vishwanath R. and Lieb, Jason D.}, year={2006}, month=dec, pages={877–885} }