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Series GSE87180 Query DataSets for GSE87180
Status Public on Jan 24, 2018
Title ChIPseq in Pax7-reprogrammed corticotropes AtT-20 cells
Organism Mus musculus
Experiment type Genome binding/occupancy profiling by high throughput sequencing
Summary Deployment of a cell-specifying enhancer repertoire by the pioneer factor Pax7
The establishment and maintenance of cell identity depends on implementation of stable cell-specific chromatin landscapes. Pioneer transcription factors establish new cell fate competences by triggering chromatin remodeling during development. Here, we used pituitary cell specification to define the salient features of pioneer action. Comparison of purified pituitary cells of different lineages showed that chromatin accessibility differs at enhancers rather than promoters. The pioneer factor Pax7 specifies one pituitary lineage identity by opening a specific repertoire of enhancers that are distinct from the myogenic targets of Pax7. Pax7 binds its pioneer targets rapidly and days before chromatin remodeling and gene activation. Finally, enhancers opened by Pax7-dependent chromatin remodeling exhibit loss of DNA methylation and they acquire long term epigenetic memory. The present work identifies enhancer pioneering as a critical feature for cell fate specification and maintenance.
 
Overall design ChIP assay followed by high throughput sequencing (ChIP-seq)
 
Contributor(s) Mayran A, Gauthier Y, Drouin J
Citation(s) 29358650, 34197620
Submission date Sep 21, 2016
Last update date Jul 28, 2021
Contact name ALEXANDRE MAYRAN
E-mail(s) alexandre.mayran@epfl.ch
Organization name EPFL
Street address Station 19
City LAUSANNE
State/province Waadt
ZIP/Postal code 1015
Country Switzerland
 
Platforms (1)
GPL13112 Illumina HiSeq 2000 (Mus musculus)
Samples (41)
GSM2324086 Pax7 ChIPseq in AtT-20 expressing Pax7
GSM2324088 Tpit ChIPseq in AtT-20 expressing Pax7
GSM2324089 GR ChIPseq in AtT-20 expressing Neo (Dex+LIF)
This SubSeries is part of SuperSeries:
GSE87185 Pioneer factor Pax7 deploys a stable enhancer repertoire for specification of cell fate
Relations
BioProject PRJNA343795
SRA SRP090246

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Supplementary file Size Download File type/resource
GSE87180_RAW.tar 30.7 Gb (http)(custom) TAR (of BIGWIG)
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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