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Old 02-12-2010, 03:12 AM   #1
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Default PubMed: Native chromatin preparation and illumina/solexa library construction.

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Native chromatin preparation and illumina/solexa library construction.

CSH Protoc. 2009 Jun 1;2009(6):pdb.prot5237

Authors: Cuddapah S, Barski A, Cui K, Schones DE, Wang Z, Wei G, Zhao K

INTRODUCTION High-throughput whole-genome analysis has become a practical and important technique to understand nuclear processes, such as transcription, replication, and genome structure. Though microarrays have been the preferred genome-scale analysis method for over a decade, new technologies, referred to as next-generation sequencing, offer distinct advantages over microarrays in both sensitivity and scale. Several next-generation sequencing platforms are currently available, including the Genome Analyzer (Solexa/Illumina), 454 (Roche), and ABI-SOLiD (Applied Biosystems). This protocol describes sample preparation for sequencing of chromatin-immunoprecipitated DNA (ChIP-Seq) to analyze histone modification patterns using native chromatin and the Genome Analyzer. One advantage of using native chromatin as compared to cross-linked chromatin is that it provides single-nucleosome-level resolution and avoids nonspecific modification signals from different nucleosomes carried over through protein-protein interactions. The protocol includes purification of human CD4+ T cells from lymphocytes and chromatin fragmentation using micrococcal nuclease (MNase) digestion, followed by chromatin immunoprecipitation (ChIP) and construction of a library for sequencing.

PMID: 20147195 [PubMed - in process]

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