Chromatin Immunoprecipitation in Mouse Hippocampal Cells and Tissues

Chromatin immunoprecipitation (ChIP) has been developed for studying protein–DNA interactions and has been extensively used for mapping the localization of posttranslationally modified histones, histone variants, transcription factors, or chromatin modifying enzymes at a given locus or on a genome-wide scale. ChIP methods have been modified and improved over the years to fit a variety of different cell types and tissues. Here, we present a detailed protocol for hippocampal ChIP, of both minced tissue and enzyme-separated hippocampal cells. This protocol enables to study chromatin–protein interactions in a specified population of hippocampal cells, allowing to study chromatin regulation in the central nervous system in a variety of conditions and disorders. Our assay has been developed for histone modifications but is suited for any chromatin binding protein for which specific ChIP-grade antibodies are available.