Abstract
Long noncoding RNAs (lncRNAs) have recently emerged as masters of gene expression regulation by exerting their functions in all cell compartments through a wide repertoire of mechanisms. A high portion of lncRNAs are robustly enriched in the chromatin fraction suggesting a broad regulatory role in the nuclear compartment. Despite the advances in this field, the interaction between lncRNAs and the chromatin is still poorly understood. This led to the emergence of numerous hybridization capture assays such as the Chromatin Isolation by RNA Purification (ChIRP) which revealed at high resolution the genomic binding sites of several nuclear lncRNAs. In this chapter, we describe the ChIRP protocol that was successfully applied to the lncRNA ANRIL. We also provide a user-friendly bioinformatic pipeline for ChIRP-seq data analysis.
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