Genomics

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Method for accurate epigenome profiling using a few hundred cells and its applications


ABSTRACT: Difficulties to accurately map epigenomes in a few cells sorted or dissected from tissues have hampered our understanding of how chromatin modification regulates development and diseases. Despite recent progress, all reported chromatin-immunoprecipitation-based deep sequencing (ChIP-seq) methods have not achieved high quality mapping of rare cell populations. We report Recovery via Protection (RP)-ChIP-seq and favored amplification RP-ChIP-seq (FARP-ChIP-seq) for as few as 500 cells with superior quality compared to all reported techniques to date. FARP-ChIP-seq accurately mapped histone H3 lysine 4 trimethylation (H3K4me3) and H3K27me3 in long-term hematopoietic stem cells (LT-HSCs), short-term HSCs (ST-HSCs), and multi-potent progenitors (MPPs) sorted from one mouse. These high quality datasets not only implicate genes involved in HSC differentiation but also demonstrate a general lack of H3K4me3/H3K27me3 bivalency on hematopoietic genes in HSCs. Thus the method offers accurate mapping for fewest cells.

ORGANISM(S): Mus musculus

PROVIDER: GSE70832 | GEO | 2015/10/02

SECONDARY ACCESSION(S): PRJNA289659

REPOSITORIES: GEO

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