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GenomicsChromatin Signatures in Multipotent Human HSCs Indicate the Fate of Bivalent Genes during Differentiation
Histone modifications have been implicated in stem cell maintenance and differentiation. We have analyzed genome-wide changes in gene expression and histone modifications during differentiation of multipotent human primary hematopoietic stem cells/progenitor cells (HSCs/HPCs) into erythrocyte precur...
ORGANISM(S): Homo sapiens 
2009-01-09 | E-GEOD-12646 | biostudies-arrayexpress
GenomicsH3K27me3 ChIP-seq experiment in fruitfly testis somatic gonadal cells
In many metazoans, germ cells are separated from somatic lineages early in development and maintain their identity throughout life. Here we show that a Polycomb group (PcG) component, Enhancer of Zeste [E(z)] H3K27me3-specific methyltransferase, maintains germline identity in Drosophila adult testes...
ORGANISM(S): Drosophila melanogaster 
2014-05-02 | E-GEOD-53238 | biostudies-arrayexpress
TranscriptomicsMapping Epigenomic Type-Specific Differences Occurring During Hematopoiesis
Formation of the blood from self-renewing hematopoietic stem cells to terminal lineages necessarily involves epigenomic modifications of the genome to control regulator and signature gene expression. By analysing the global expression profiles of hematopoietic stem cells (HSCs), in vivo differentiat...
ORGANISM(S): Homo sapiens 
2013-03-25 | E-GEOD-39229 | biostudies-arrayexpress
GenomicsMapping Epigenomic Type-Specific Differences Occurring During Hematopoiesis [ChIP-Seq]
Formation of the blood from self-renewing hematopoietic stem cells to terminal lineages necessarily involves epigenomic modifications of the genome to control regulator and signature gene expression. By analysing the global expression profiles of hematopoietic stem cells (HSCs), in vivo differentiat...
ORGANISM(S): Homo sapiens 
2013-03-25 | E-GEOD-39538 | biostudies-arrayexpress
TranscriptomicsRegulation of nucleosome landscape and transcription factor binding at enhancers by BRG1
Enhancers of transcription activate transcription via binding of sequence-specific transcription factors to their target sites in chromatin. In this report, we identify GATA1-bound enhancers genome-wide and find a global reorganization of the nucleosomes at these enhancers during differentiation of ...
ORGANISM(S): Homo sapiens 
2011-07-01 | E-GEOD-26501 | biostudies-arrayexpress
TranscriptomicsMonovalent and unpoised status of most genes in undifferentiated cell-enriched Drosophila testis
We use male gonads isolated from a Drosophila strain that allows us to obtain enough cells at their primitive status as the starting material to study the endogenous chromatin structure of undifferentiated cells using ChIP-seq. We integrate the ChIP-seq data with RNA-seq data that measures the trans...
ORGANISM(S): Drosophila melanogaster 
2010-04-16 | E-GEOD-19325 | biostudies-arrayexpress
GenomicsIntragenic DNA methylation modulates alternative splicing by recruiting MeCP2 to promote exon recognition [ChIP-Seq]
Although the function of DNA methylation in gene promoter regions is well established in transcriptional repression, the function of the evolutionarily conserved widespread distribution of DNA methylation in gene body regions remains incompletely understood. Here, we show that DNA methylation is enr...
ORGANISM(S): Homo sapiens 
2013-08-13 | E-GEOD-47677 | biostudies-arrayexpress
TranscriptomicsIntragenic DNA methylation modulates alternative splicing by recruiting MeCP2 to promote exon recognition [RNA-Seq]
Although the function of DNA methylation in gene promoter regions is well established in transcriptional repression, the function of the evolutionarily conserved widespread distribution of DNA methylation in gene body regions remains incompletely understood. Here, we show that DNA methylation is enr...
ORGANISM(S): Homo sapiens 
2013-08-13 | E-GEOD-47488 | biostudies-arrayexpress
GenomicsGenome wide uH2A localization analysis highlights Bmi1-dependent deposition of the mark at repressed genes.
Polycomb group (PcG) proteins control organism development by regulating the expression of developmental genes. Transcriptional regulation by PcG proteins is achieved at least partly through the PRC2-mediated methylation on lysine 27 of histone H3 (H3K27) and PRC1-mediated ubiquitylation on lysine 1...
ORGANISM(S): Mus musculus 
2009-05-20 | E-GEOD-15896 | biostudies-arrayexpress
TranscriptomicsGenome-wide analysis of 5-hydroxymethylcytosine distribution reveals its dual function in transcriptional regulation in mouse embryonic stem cells
Recent studies have demonstrated that the Ten-eleven translocation (Tet) family proteins can enzymatically convert 5-methylcytosine (5mC) to 5-hydroxymethylcytosine (5hmC). While 5mC has been studied extensively, little is known about the distribution and function of 5hmC. Here we present a genome...
ORGANISM(S): Mus musculus 
2011-03-30 | E-GEOD-27613 | biostudies-arrayexpress
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