In Vivo ChIP-Seq of Nuclear Receptors: A Rough Guide to Transform Frozen Tissues into High-Confidence Genome-Wide Binding Profiles
2019
: Chromatin immunoprecipitation coupled to next generation sequencing (ChIP-seq) is a powerful tool to map context-dependent genome-wide binding of nuclear hormone receptors and their coregulators. This information can provide important mechanistic insight into where, when and how DNA-protein interactions are linked to target gene regulation. Here we describe a simple, yet reliable ChIP-seq method, including nuclear isolation from frozen tissue samples, cross-linking DNA-protein complexes, chromatin shearing, immunoprecipitation, and purification of ChIP DNA. We also include a standard ChIP-seq data analysis pipeline to elaborate and analyze raw single-end or paired-end sequencing data, including quality control steps, peak calling, annotation, and motif enrichment.
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