Chipper: discovering transcription-factor targets ...[Genome Biol. 2005]

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1: Genome Biol. 2005;6(11):R96. Epub 2005 Nov 1. Links

Chipper: discovering transcription-factor targets from chromatin immunoprecipitation microarrays using variance stabilization.

Gibbons FD, Proft M, Struhl K, Roth FP.

Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Longwood Avenue, Boston, MA 02115, USA. fgibbons@hms.harvard.edu

Chromatin immunoprecipitation combined with microarray technology (Chip2) allows genome-wide determination of protein-DNA binding sites. The current standard method for analyzing Chip2 data requires additional control experiments that are subject to systematic error. We developed methods to assess significance using variance stabilization, learning error-model parameters without external control experiments. The method was validated experimentally, shows greater sensitivity than the current standard method, and incorporates false-discovery rate analysis. The corresponding software ('Chipper') is freely available. The method described here should help reveal an organism's transcription-regulatory 'wiring diagram'.

PMID: 16277751 [PubMed - indexed for MEDLINE]

PMCID: PMC1297652

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Cited by 8 PubMed Central articles

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