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Genome-wide maps of chromatin state in Huh 7 cells

ABSTRACT: We report the application of chromatin immunoprecipitation sequencing (ChIPseq) and ATAC for high-throughput profiling of histone modifications in Huh 7 cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE184797 | GEO | 2022/03/01

REPOSITORIES: GEO

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Genome-wide maps of chromatin state in HepG2 cells

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Genome-wide maps of chromatin state in Huh 7 cells

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Project description:We report the application of single-molecule-based sequencing technology for high-throughput profiling of histone modifications in human monocyte devried DCs. By obtaining about 15 million mapped reads for each sample from chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps of human monocytes and monocyte-derived DCs. This study provides a framework for the application of comprehensive chromatin profiling towards characterization of diverse mammalian cell populations.

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Genome-wide maps of chromatin state in liver cells.

Project description:We report the application of single-molecule-based sequencing technology for high-throughput profiling of histone modifications in mammalian cells. By obtaining over four billion bases of sequence from chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps of mouse liver cells. We find that lysine 4 trimethylation effectively discriminates genes that are expressed, poised for expression, or stably repressed, and therefore reflect cell state and lineage potential. Lysine 9 and 27 trimethylation marks primary coding and non-coding transcripts, have no differents in gene annotation. Trimethylation of lysine 4 is detected has different expresssion at mir124 site front of lnc-RNA(10835)Far. Finally, we show that chromatin state can be read in an allele-specific manner by using single nucleotide polymorphisms. This study provides a framework for the application of comprehensive chromatin profiling towards characterization of diverse mammalian cell populations.

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Genome-wide Chromatin Maps Derived from Limited Numbers of Hematopoietic Progenitors

Project description:Whole genome mapping of protein-DNA interactions can be performed by coupling chromatin immunoprecipitation (ChIP) with high-throughput sequencing (ChIP-Seq). However, current methods require large amounts of starting materials which precludes their application to rare cell types. Here, we combine a high-sensitivity ChIP assay with a novel library preparation procedure to map histone modifications in as few as 10,000 cells. We apply the technique to acquire genome-wide chromatin maps for an enriched population of hematopoietic progenitors, and thereby gain insight into their developmental program. An optimized ChIP protocol for small number of cells and a novel Librray preperation methods for high throughput sequencing of picograms amount of ChIP DNA.

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Genome-wide maps of chromatin state in liver.

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