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GenomicsHistone acetylation regulates intracellular pH
Differences in global levels of histone acetylation occur in normal and cancer cells, although the reason cells regulate these levels has remained unclear. Here we demonstrate a role for histone acetylation in regulating intracellular pH (pHi). As pHi decreases, histones are globally deacetylated by...
ORGANISM(S): Homo sapiens 
2012-11-04 | E-GEOD-40114 | biostudies-arrayexpress
TranscriptomicsThe Rpd3 Core Complex is a Chromatin Stabilization Module
The S. cerevisiae Rpd3 large (Rpd3L) and small (Rpd3S) histone deacetylase (HDAC) complexes are prototypes for understanding transcriptional repression in eukaryotes [1]. The current view is that they function by deacetylating chromatin, thereby limiting accessibility of transcriptional factors to t...
ORGANISM(S): Saccharomyces cerevisiae 
2012-01-01 | E-GEOD-33829 | biostudies-arrayexpress
GenomicsGenome-wide binding map of the HIV Tat protein to the human genome (ChIP-Seq)
The HIV-1 Trans-Activator of Transcription (Tat) protein binds to multiple host cellular factors and greatly enhances the level of transcription of the HIV genome. Here, we report the genome-wide binding map of Tat to the human genome in Jurkat T cells (Jurkat-Tat cells) using chromatin immunopreci...
ORGANISM(S): Homo sapiens 
2011-11-06 | E-GEOD-30738 | biostudies-arrayexpress
TranscriptomicsGenome-wide binding map of the HIV Tat protein to the human genome
This SuperSeries is composed of the following subset Series: GSE30734: Genome-wide binding map of the HIV Tat protein to the human genome (gene expression) GSE30736: Genome-wide binding map of the HIV Tat protein to the human genome (ChIP-chip) GSE30738: Genome-wide binding map of the HIV Tat protei...
ORGANISM(S): Homo sapiens 
2011-11-06 | E-GEOD-30739 | biostudies-arrayexpress
TranscriptomicsExpression profiles and ChIP on chip genomewide experiments with deltaCR2 mutant virus
Adenovirus e1a induces quiescent human cells to divide. We found that e1a causes global relocalization of the RB-proteins (RB, p130, p107) and p300/CBP histone acetyltransferases on promoters that restricts H3K18ac to a limited set of genes to stimulate cell cycling and inhibit antiviral responses a...
ORGANISM(S): Homo sapiens 
2008-08-26 | E-GEOD-12047 | biostudies-arrayexpress
TranscriptomicsProfiles and ChIP on chip experiments with dl1500 virus (expressing WT small e1a), R2G and deltaCR2 mutant viruses
Adenovirus e1a induces quiescent human cells to divide. We found that e1a causes global relocalization of the RB-proteins (RB, p130, p107) and p300/CBP histone acetyltransferases on promoters that restricts H3K18ac to a limited set of genes to stimulate cell cycling and inhibit antiviral responses a...
ORGANISM(S): Homo sapiens 
2010-10-08 | E-GEOD-12543 | biostudies-arrayexpress
GenomicsScl specifies hemogenic endothelium and inhibits cardiogenesis via primed enhancers [ChIP-seq]
Scl/Tal1 confers hemogenic competence and prevents cardiomyogenesis in embryonic endothelium. Here we show that Scl both directly activates a broad gene regulatory network required for hematopoietic stem/progenitor cell (HS/PC) development, and represses transcriptional regulators required for cardi...
ORGANISM(S): Mus musculus 
2015-01-01 | E-GEOD-47082 | biostudies-arrayexpress
TranscriptomicsEP400 Deposits H3.3 into Promoters and Enhancers During Gene Activation
Purpose: We wanted to know how histone variants H3.3 and H2AZ are deposited into genes and enhancers during gene activation Methods: U2OS cells were harvested at 70% confluency with formaldehyde crosslinking for ChIP-seq without crosslinking for RNA-seq. ChIP DNA were purified through standard chrom...
ORGANISM(S): Homo sapiens 
2015-12-18 | E-GEOD-73742 | biostudies-arrayexpress
TranscriptomicsScl specifies hemogenic endothelium and inhibits cardiogenesis via primed enhancers [RNA-seq]
Scl/Tal1 confers hemogenic competence and prevents cardiomyogenesis in embryonic endothelium. Here we show that Scl both directly activates a broad gene regulatory network required for hematopoietic stem/progenitor cell (HS/PC) development, and represses transcriptional regulators required for cardi...
ORGANISM(S): Mus musculus 
2015-01-01 | E-GEOD-47083 | biostudies-arrayexpress
GenomicsDynamic Distribution of Linker Histone H1.5 in Cellular Differentiation
Linker histones are essential components of chromatin but the distributions and functions of many during cellular differentiation is not well understood. Here, we show that H1.5 binds to genic and intergenic regions, forming blocks of enrichment, in differentiated human cells from all three embryoni...
ORGANISM(S): Homo sapiens 
2012-12-11 | E-GEOD-26967 | biostudies-arrayexpress
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