Crossref journal-article
Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences (341)
Abstract

We propose a fast and powerful analysis algorithm, titled Model-based Analysis of Tiling-arrays (MAT), to reliably detect regions enriched by transcription factor chromatin immunoprecipitation (ChIP) on Affymetrix tiling arrays (ChIP-chip). MAT models the baseline probe behavior by considering probe sequence and copy number on each array. It standardizes the probe value through the probe model, eliminating the need for sample normalization. MAT uses an innovative function to score regions for ChIP enrichment, which allows robust P value and false discovery rate calculations. MAT can detect ChIP regions from a single ChIP sample, multiple ChIP samples, or multiple ChIP samples with controls with increasing accuracy. The single-array ChIP region detection feature minimizes the time and monetary costs for laboratories newly adopting ChIP-chip to test their protocols and antibodies and allows established ChIP-chip laboratories to identify samples with questionable quality that might contaminate their data. MAT is developed in open-source Python and is available at http://chip.dfci.harvard.edu/∼wli/MAT . The general framework presented here can be extended to other oligonucleotide microarrays and tiling array platforms.

Bibliography

Johnson, W. E., Li, W., Meyer, C. A., Gottardo, R., Carroll, J. S., Brown, M., & Liu, X. S. (2006). Model-based analysis of tiling-arrays for ChIP-chip. Proceedings of the National Academy of Sciences, 103(33), 12457–12462.

Authors 7
  1. W. Evan Johnson (first)
  2. Wei Li (additional)
  3. Clifford A. Meyer (additional)
  4. Raphael Gottardo (additional)
  5. Jason S. Carroll (additional)
  6. Myles Brown (additional)
  7. X. Shirley Liu (additional)
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Dates
Type When
Created 19 years ago (Aug. 8, 2006, 11:38 p.m.)
Deposited 3 years, 4 months ago (April 12, 2022, 3:40 p.m.)
Indexed 11 months, 2 weeks ago (Sept. 15, 2024, 7:11 a.m.)
Issued 19 years ago (Aug. 15, 2006)
Published 19 years ago (Aug. 15, 2006)
Published Online 19 years ago (Aug. 15, 2006)
Published Print 19 years ago (Aug. 15, 2006)
Funders 0

None

@article{Johnson_2006, title={Model-based analysis of tiling-arrays for ChIP-chip}, volume={103}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0601180103}, DOI={10.1073/pnas.0601180103}, number={33}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Johnson, W. Evan and Li, Wei and Meyer, Clifford A. and Gottardo, Raphael and Carroll, Jason S. and Brown, Myles and Liu, X. Shirley}, year={2006}, month=aug, pages={12457–12462} }