Mus musculus
Ontology highlight
ABSTRACT:
OTHER RELATED OMICS DATASETS IN: PXD007577
PROVIDER: PRJNA386280 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR5527790.fastq.gz | Fastqsanger.gz | |||
| SRR5527791.fastq.gz | Fastqsanger.gz | |||
| SRR5527792.fastq.gz | Fastqsanger.gz | |||
| SRR5527793.fastq.gz | Fastqsanger.gz | |||
| SRR5527784.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 11 |
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Project description:The Polycomb Group Protein Suz12 Is Required for Embryonic Stem Cell Differentiation
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Project description:The role of mitochondria dynamics and its molecular regulators remains largely unknown during naïve-to-primed pluripotent cell interconversion. Here we report that mitochondrial MTCH2 is a regulator of mitochondrial fusion, essential for the naïve-to-primed interconversion of murine embryonic stem cells (ESCs). During this interconversion, wild-type ESCs elongate their mitochondria and slightly alter their glutamine utilization. In contrast, MTCH2-/- ESCs fail to elongate their mitochondria and to alter their metabolism, maintaining high levels of histone acetylation and expression of naïve pluripotency markers. Importantly, enforced mitochondria elongation by the pro-fusion protein Mitofusin (MFN) 2 or by a dominant negative form of the pro-fission protein dynamin-related protein (DRP) 1 is sufficient to drive the exit from naïve pluripotency of both MTCH2-/- and wild-type ESCs. Taken together, our data indicate that mitochondria elongation, governed by MTCH2, plays a critical role and constitutes an early driving force in the naïve-to-primed pluripotency interconversion of murine ESCs.
2018-11-10 | GSE122067 | GEO
Project description:Polycomb group proteins are transcriptional repressors that control cell identity and development. In mammals, at least five different CBX proteins are believed to associate with the core Polycomb repressive complex 1 (PRC1). CBX6 and CBX7 are the most highly expressed CBX proteins in embryonic stem cells (ESCs), yet little is known about the function of CBX6 in these cells. Here we show that CBX6 is an essential regulator of ESC identity, since ablation of CBX6 function destabilizes the pluripotency network and triggers differentiation. At the molecular level, CBX6 is linked to the canonical PRC1 (cPRC1) complex; however, contrary to expectations, our results indicate that CBX6 also has a non-canonical PRC1 function. Taken together, our findings reveal that CBX6 is an essential component for ESC biology and contributes to the structural and functional complexity of the PRC1 complex.
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Project description:Non-Overlapping Functions of the Polycomb group Cbx Family of Proteins in Embryonic Stem Cells
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Project description:Polycomb-group proteins form multimeric protein complexes involved in transcriptional silencing. The Polycomb Repressive complex 2 (PRC2) contains the Suppressor of Zeste-12 protein (Suz12) and the histone methyltransferase Enhancer of Zeste protein-2 (Ezh2). This complex, catalyzing the di- and tri-methylation of histone H3 lysine 27, is essential for embryonic development and stem cell renewal. However, the role of Polycomb-group protein complexes in the control of the intestinal epithelial cell (IEC) phenotype is not known. We investigated the impact of Suz 12 depletion on gene expression in IEC-6 cells.
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Project description:Dppa4 is dispensable for embryonic stem cell identity and germ cell development, but essential for embryogenesis
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Project description:Introgressed variants from other species can be an important source of genetic variation because they may arise rapidly, can include multiple mutations on a single haplotype, and have often been pretested by selection in the species of origin. Although introgressed alleles are generally deleterious, several studies have reported introgression as the source of adaptive alleles-including the rodenticide-resistant variant of Vkorc1 that introgressed from Mus spretus into European populations of Mus musculus domesticus. Here, we conducted bidirectional genome scans to characterize introgressed regions into one wild population of M. spretus from Spain and three wild populations of M. m. domesticus from France, Germany, and Iran. Despite the fact that these species show considerable intrinsic postzygotic reproductive isolation, introgression was observed in all individuals, including in the M. musculus reference genome (GRCm38). Mus spretus individuals had a greater proportion of introgression compared with M. m. domesticus, and within M. m. domesticus, the proportion of introgression decreased with geographic distance from the area of sympatry. Introgression was observed on all autosomes for both species, but not on the X-chromosome in M. m. domesticus, consistent with known X-linked hybrid sterility and inviability genes that have been mapped to the M. spretus X-chromosome. Tract lengths were generally short with a few outliers of up to 2.7 Mb. Interestingly, the longest introgressed tracts were in olfactory receptor regions, and introgressed tracts were significantly enriched for olfactory receptor genes in both species, suggesting that introgression may be a source of functional novelty even between species with high barriers to gene flow.
| S-EPMC8784167 | biostudies-literature