Project description:We report the application of chromatin immunoprecipitation sequencing (ChIPseq) and ATAC for high-throughput profiling of histone modifications in HepG2 cells.
Project description:We report the application of chromatin immunoprecipitation sequencing (ChIPseq) and ATAC for high-throughput profiling of histone modifications in Huh 7 cells.
Project description:To integrate genome-wide occupancy of canonical and ncPRC1 with control of gene expression, we performed ChIPseq analysis for RNF2 (cPRC1 and ncPRC1), BMI1 and PHC2 (cPRC1), and KDM2B (ncPRC1.1) and integrated the results with the known occupancy data for the transcriptional repression mark H3K27me3 and the activation mark H3K4me3 in PC3 cells. Finally, we show that the capacity of PRC1 is to positively control the gene expression associated with the acquisition of mesenchymal and stem-like traits and progression to metastasis in PC3.
Project description:Study of repressive marks (two heterochromatic: H3K9me2 and H3K27me1; one euchromatic: H3K27me3) and one active mark (H3K9ac) by whole-genome ChIPseq
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. We find that lysine 4 and lysine 27 trimethylation effectively discriminates genes that are expressed, poised for expression, or stably repressed, and therefore reflect cell state and lineage potential. Lysine 36 trimethylation marks primary coding and non-coding transcripts, facilitating gene annotation. Trimethylation of lysine 9 and lysine 20 is detected at satellite, telomeric and active long-terminal repeats, and can spread into proximal unique sequences. Lysine 4 and lysine 9 trimethylation marks imprinting control regions. 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.
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.
Project description:The chromatin state in developing body parts provides a zip code to cellular populations that direct their cell fates. We used antibodies for H3K4me3, H3K27me3 and Pol2, to identify the chromatin state signature of the mouse forelimb during mid-gestation, at embryonic day 12. The families of genes marked included those related to transcription, transcriptional regulation, and embryonic organ development. Transcription factors specific for muscle development were characterized by bivalent chromatin, as E12 is a transition time point from embryonic to fetal myogenesis. The identified chromatin state of muscle specific genes was in strong correlation with their observed expression profile. Examination of the histone marks H3K4me3, H3k27me3, and Pol2 in whole E12.5 forelimnb tissues using the Illumina HiSeq 2000.
