Genome-wide transcription factor binding and histone mark profiling in pluripotent and lineage-committed cells
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ABSTRACT:
PROVIDER: PRJNA503743 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR8156010.fastq.gz | Fastqsanger.gz | |||
| SRR8156020.fastq.gz | Fastqsanger.gz | |||
| SRR8156001.fastq.gz | Fastqsanger.gz | |||
| SRR8156011.fastq.gz | Fastqsanger.gz | |||
| SRR8156021.fastq.gz | Fastqsanger.gz |
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Project description:Genome-wide maps of chromatin state in pluripotent and lineage-committed cells
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Project description:Genome-wide maps of chromatin state in pluripotent and lineage-committed cells.
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Project description:Human embryonic stem cells share identical genomic sequences with other lineage-committed cells yet possess the remarkable properties of self-renewal and pluripotency. It has been proposed that epigenetic regulatory mechanisms, involving DNA methylation and various chromatin modifications, are at least partly responsible for the distinct cellular properties between different cell types. Previous studies focusing largely on gene promoters and CpG islands have identified close association between several chromatin modifications and DNA methylation, but revealed a relatively small degree of differences between pluripotent and lineage-committed cells. Here, we examine the association between 11 chromatin modifications and DNA methylation at high resolution throughout the genome in the human embryonic stem cells and primary fetal lung fibroblasts. We observe a new set of relationships between chromatin modifications and DNA methylation occurring outside of the promoter regions. We also find that epigenomic landscapes are drastically different between the ES cells and fibroblasts. In particular, over 40% of the human genome differs in their chromatin structure between the two cell types. Most of the changes come from a dramatic redistribution of the repressive H3K9me3 and H3K27me3 marks, which form large blocks that expand significantly in the fibroblasts relative to ES cells. Additionally, we identified numerous small and punctuated regions outside of promoters that are associated with many active chromatin modification marks, and show that chromatin dynamics at these potential regulatory sequences are associated with change in DNA methylation between the ES cells and fibroblasts. Our results provide new insights into epigenetic regulatory mechanisms underlying properties of pluripotency and cell fate commitment. ChIP-Seq Analysis of OCT4, KLF4, MYC, TAFII and P300 in hESC H1 cells. 36 cycles of sequencing was done on the Illumina Genome Analyzer or Analyzer II platforms.
2009-10-13 | E-GEOD-17917 | biostudies-arrayexpress
Project description:Genome-wide maps of chromatin state (H3K4me3, H3K9me3, H3K27me3, H3K36me3, H4K20me3) in pluripotent and lineage-committed cells 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 embryonic stem cells, neural progenitor cells and embryonic fibroblasts. 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. Histone H3 or H4 tri-methylation ChIP-Seq in singlicate from murine embryonic stem (ES) cells, ES-derived neural precursor cells, and embryonic fibroblasts.
2008-07-24 | E-GEOD-12241 | biostudies-arrayexpress
Project description:Human embryonic stem cells share identical genomic sequences with other lineage-committed cells yet possess the remarkable properties of self-renewal and pluripotency. It has been proposed that epigenetic regulatory mechanisms, involving DNA methylation and various chromatin modifications, are at least partly responsible for the distinct cellular properties between different cell types. Previous studies focusing largely on gene promoters and CpG islands have identified close association between several chromatin modifications and DNA methylation, but revealed a relatively small degree of differences between pluripotent and lineage-committed cells. Here, we examine the association between 11 chromatin modifications and DNA methylation at high resolution throughout the genome in the human embryonic stem cells and primary fetal lung fibroblasts. We observe a new set of relationships between chromatin modifications and DNA methylation occurring outside of the promoter regions. We also find that epigenomic landscapes are drastically different between the ES cells and fibroblasts. In particular, over 40% of the human genome differs in their chromatin structure between the two cell types. Most of the changes come from a dramatic redistribution of the repressive H3K9me3 and H3K27me3 marks, which form large blocks that expand significantly in the fibroblasts relative to ES cells. Additionally, we identified numerous small and punctuated regions outside of promoters that are associated with many active chromatin modification marks, and show that chromatin dynamics at these potential regulatory sequences are associated with change in DNA methylation between the ES cells and fibroblasts. Our results provide new insights into epigenetic regulatory mechanisms underlying properties of pluripotency and cell fate commitment.
2009-10-13 | GSE17917 | GEO
Project description:Purpose: Assess changes in p63 binding in human embryonic stem cells and surface ectoderm; evaluate differences in the following histone marks: H3K27me3, H3K27ac, H3K4me1, and H3K4me3 in the surface ectoderm with and without p63; and examine changes in H3K27me3 between human embyronic stem cells and surface ectoderm with and without p63. Methods: p63 ChIP-seq libraries were generated in p63 gain-of-function human embryonic stem cells and wild-type surface ectoderm. H3K27me3 ChIP-seq libraries were generated in wild-type and p63 gain-of-function human embryonic stem cells as well as wild-type and p63 knockout surface ectoderm. H3K27ac, H3K4me1, and H3K4me3 ChIP-seq libraries were generated in wild-type and p63 knockout surface ectoderm. All ChIP-seq experiments were performed in duplicate and sequenced on Illumina NextSeq 500 sequencer. To ensure quality reads, fastq files were analyzed using FASTQC. Bowtie was used for read mapping and the parameters were as follows: -p 24 -S -a -m 1 --best --strata. For peak calling using MACS2, default settings were specified with a p-value of 0.05. To ensure quality peaks, IDR was run on all files, specifying FDR of 1% or 5% (or 10% for some broadPeak histone marks). Results: Limited changes in p63 binding in human embryonic stem cells and surface ectoderm; global loss of H3K37me3 without p63 in the surface ectoderm; limited differences in H3K27ac, H3K4me1, and H3K4me3 +/- p63 in the surface ectoderm; and increase in H3K27me3 with ectopic expression of p63 in human embryonic stem cells. Conclusion: p63 is able to bind it's surface ectoderm target sites regardless of the epigenetic landscape; p63 promotes H3K27me3 accumulation; and p63 does not regulate histone marks H3K27ac, H3K4me1, or H3K4me3
2018-11-06 | GSE122128 | GEO
Project description:Genome-wide maps of chromatin state (H3K4me3, H3K9me3, H3K27me3, H3K36me3, H4K20me3) in pluripotent and lineage-committed cells 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 embryonic stem cells, neural progenitor cells and embryonic fibroblasts. 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.
2008-07-25 | GSE12241 | GEO
Project description:We show here by using genome-wide ChIP-sequencing that lineage segregation involves multiple Sox/Oct partnership. In undifferentiated ES cells Oct4 interacts with Sox2 and both TFs bind on the 'canonical' motif, whereas in cells commited to PrE lineage Oct4 switches from Sox2 to Sox17 interaction and this complex bind to a unique "compressed" motif. ChIP-sequencing has been done for Sox2, Sox17 and Oct4 in the pluripotent context or PrE context
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