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A Akalin, M Kormaksson, S Li, FE Garrett-Bakelman, ME Figueroa, A Melnick and CE Mason
Abstract
DNA methylation is a chemical modification of cytosine bases that is pivotal for gene regulation, cellular specification and cancer development. Here, we describe an R package, methylKit, that rapidly analyzes genome-wide cytosine epigenetic profiles from high-throughput methylation and hydroxymethylation sequencing experiments. methylKit includes functions for clustering, sample quality visualization, differential methylation analysis and annotation features, thus automating and simplifying many of the steps for discerning statistically significant bases or regions of DNA methylation. Finally, we demonstrate methylKit on breast cancer data, in which we find statistically significant regions of differential methylation and stratify tumor subtypes. methylKit is available at http://code.google.com/p/methylkit.
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Concepts
Epigenetics, Breast cancer, Histone, DNA methylation, RNA, Cancer, Gene expression, DNA
MeSH headings
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