Differential methylation hybridization

profiling DNA methylation with a high-density CpG island microarray.

Pearlly S. Yan, Dustin Potter, Daniel E. Deatherage, Hui-ming Huang, Shili Lin

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Differential methylation hybridization (DMH) is a high-throughput DNA methylation screening tool that utilizes methylation-sensitive restriction enzymes to profile methylated fragments by hybridizing them to a CpG island microarray. This array contains probes spanning all the 27,800 islands annotated in the UCSC Genome Browser. Herein we describe a revised DMH protocol with clearly identified quality control points. In this manner, samples that are unlikely to provide good readouts for differential methylation profiles between the test and the control samples will be identified and repeated with appropriate modifications. In addition to the step-by-step laboratory DMH protocol, we also provide a detailed description regarding DMH data analysis. The suggested microarray platform contains 244,000 probes and it can be a daunting barrier for researchers with no prior experience in analyzing DNA methylation data. We have created a data analysis pipeline available in a user friendly, publicly available interface, the Broad Institute's GenePattern software, which can be accessed at http://bisr.osumc.edu :8080/gp. This permits scientists to use our existing data analysis modules on their own data. As we continue to update our analysis algorithm and approaches to integrate high-throughput methylation data with other large-scale data types, we will make these new computation protocols available through the GenePattern platform.

Original languageEnglish (US)
Pages (from-to)89-106
Number of pages18
JournalMethods in molecular biology (Clifton, N.J.)
Volume507
StatePublished - 2009
Externally publishedYes

Fingerprint

CpG Islands
DNA Methylation
Methylation
Islands
Quality Control
Software
Research Personnel
Genome
Enzymes

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

Cite this

Differential methylation hybridization : profiling DNA methylation with a high-density CpG island microarray. / Yan, Pearlly S.; Potter, Dustin; Deatherage, Daniel E.; Huang, Hui-ming; Lin, Shili.

In: Methods in molecular biology (Clifton, N.J.), Vol. 507, 2009, p. 89-106.

Research output: Contribution to journalArticle

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