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TranscriptomicsTranscription Initiation Activity Sets Replication Origin Efficiency in Mammalian Cells
Genomic mapping of DNA replication origins (ORIs) in mammals provides a powerful means for understanding the regulatory complexity of our genome. Here we combine a genome-wide approach to identify preferential sites of DNA replication initiation at 0.4% of the mouse genome with detailed molecular an...
ORGANISM(S): Mus musculus 
2010-05-22 | E-GEOD-15082 | biostudies-arrayexpress
GenomicsH3K27me3 is not required for recruitment of Polycomb repressor complex 1 to target loci in mouse embryonic stem cells
The established hierarchical model explaining co-occupancy of Polycomb repressor complexes 1 and 2 (PRC 1 and 2) at target loci proposes that the chromodomain of the polycomb protein, a core PRC1 subunit, recognises the H3K27me3 histone modification catalysed by PRC2. We used chromatin immunoprecipi...
ORGANISM(S): Mus musculus 
2011-11-30 | E-GEOD-23716 | biostudies-arrayexpress
TranscriptomicsRNA-seq of PCGF5 knockout and PCGF3/5 double knockout mouse embryonics stem cells bearing doxycycline-inducible Xist transgene on chromosome 16
In vertebrates, the catalytic core of PRC1 comprises RING1A/B and one of six homologues of the Polycomb group RING finger (PCGF) protein. Unique characteristics of PCGF1-6 in turn define distinct subunit assemblies, broadly subdivided into canonical and non-canonical PRC1 complexes. This RNA-seq exp...
ORGANISM(S): Mus musculus 
2018-04-04 | E-MTAB-5642 | biostudies-arrayexpress
GenomicsFunctional analysis of AEBP2, a PRC2 Polycomb protein, reveals a Trithorax phenotype in embryonic development and in ES cells
The Polycomb repressive complexes PRC1 and PRC2 are key mediators of heritable gene silencing in multicellular organisms. Here we characterize AEBP2, a known PRC2 cofactor which, in vitro, has been shown to stimulate PRC2 activity. We show that AEBP2 localises specifically to PRC2 target loci, incl...
ORGANISM(S): Mus musculus 
2016-08-02 | E-GEOD-83082 | biostudies-arrayexpress
GenomicsHigh resolution analysis of epigenetic changes associated with X inactivation, ChIP-Seq
This study describes the epigenetic profiling of the X chromosome during X inactivation. It includes H3K4me3 and H3K27me3 ChIP-Seq profiles of male (E14) and female (LF2 and XT67E1) mouse ES cells, together with their differentiated derivatives (either 4d atRA or 10d EB). It also includes ChIP-chip ...
ORGANISM(S): Mus musculus 
2009-06-06 | E-GEOD-15814 | biostudies-arrayexpress
TranscriptomicsDeletion of KDM2B DNA-binding domain affects RING1B and SUZ12 occupancy
The histone lysine demethylase protein, KDM2B, associates with the PCGF1/PRC1 complex and binds to non-methylated DNA through its ZF-CxxC domain, providing a possible molecular link between CpG island elements and polycomb nucleation (Farcas et al., 2012, Wu et al., 2013). Here, a novel genetic syst...
ORGANISM(S): Mus musculus 
2014-05-27 | E-GEOD-52619 | biostudies-arrayexpress
GenomicsSmchd1 dependent and independent pathways determine developmental dynamics of CpG island methylation on the inactive X chromosome.
X chromosome inactivation involves multiple levels of chromatin modification, established progressively and in a stepwise manner during early development. The chromosomal protein Smchd1 has recently been shown to play an important role in DNA methylation of CpG islands (CGIs), a late step in the X i...
ORGANISM(S): Mus musculus 
2012-10-15 | E-GEOD-37333 | biostudies-arrayexpress
Genomicsproj022_chipseq
The mechanisms that recruit the major Polycomb-group (PcG) complexes PRC1 and PRC2 to target sites in vertebrate cells are not well understood. Building on recent studies that have determined a reciprocal relationship between DNA methylation and Polycomb activity, we demonstrate that in methylation ...
ORGANISM(S): Mus musculus 
2014-05-23 | E-MTAB-2481 | biostudies-arrayexpress
GenomicsDeletion of RING1A/B and loss of H2AK119ub1 affects PRC2 occupancy and H3K27me3 genome-wide
The chromatin modifying activities inherent to polycomb repressive complexes PRC1 and PRC2 play an essential role in gene regulation, cellular differentiation, and development. However, the mechanisms by which these complexes recognize their target sites and function together to form repressive chro...
ORGANISM(S): Mus musculus 
2014-05-27 | E-GEOD-55697 | biostudies-arrayexpress
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