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Mus musculus

ABSTRACT: Genome-wide maps of Cbx3 in pluripotent mESC and pre-iPSCs

PROVIDER: PRJNA189232 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR707086.fastq.gz	Fastqsanger.gz
	SRR707087.fastq.gz	Fastqsanger.gz
	SRR707088.fastq.gz	Fastqsanger.gz
	SRR707089.fastq.gz	Fastqsanger.gz

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Genome-wide maps of Cbx3 in pluripotent mESC and pre-iPSCs

Project description:We examined the locations of Cbx3 by chromatin immunoprecipitation in ESCs and pre-iPSCs Examination of Cbx3 in mESC (mouse embryonic stem cells) and pre-iPSCs (fibroblast derived partially reprogrammed cells)

2013-06-05 | E-GEOD-44242 | biostudies-arrayexpress

Cbx3 Maintains Lineage Specificity During Neural Differentiation [ChIP-seq]

Project description:Cbx3 (HP1γ) that is a member of the heterochromatin protein 1 familiy enriched in gene bodies of pluripotent ESCs but promoters of differentiated pre-iPSCs. To determine whether Cbx3 becomes enriched at promoters to influence gene regulation during differentiation, we converted ESCs to NPCs in monolayer culuture and performed genomewide ChIP-seq of Cbx3. Our results shows that Cbx3 enriches at the promoters of genes upon differentiation of ESCs to NPCs and stablizes the binding of Mediator subunit Med26 to pre-initiation complex (PIC) in NPCs.

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Project description:Expression data from pre-iPSCs with a control, histone methyltransferase or Cbx3 (HP1g) knockdown

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Genome-wide maps of Cbx3 in pluripotent mESC and pre-iPSCs

Project description:We examined the locations of Cbx3 by chromatin immunoprecipitation in ESCs and pre-iPSCs

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Bidirectional Introgression between Mus musculus domesticus and Mus spretus.

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.

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Genome-wide mapping of Cbx3/HP1g deposition in wild-type CD8+ effector T cells

Project description:We report the application of Illumina Hi-Seq sequencing technology for high-throughput profiling of Cbx3/HP1g deposition in mammalian CD8+ effector T cells. By obtaining over four billion bases of sequence from chromatin immunoprecipitated DNA, genome-wide chromatin-state maps of mouse wt CD8+ effector T cells were generated. We find that Cbx3/HP1g negatively regulates the germinal center and high-affinity antibody responses in a CD8+ T-cell-dependent manner. CD8-restricted deletion of Cbx3/HP1g confers hightened effector and persistence capacity on CD8+ effector T cells. As a result, Cbx3/HP1g-deficient CD8+ effector T cells can efficiently control solid tumor growth in vairious mouse models (melanoma, ovarian and neuroblstoma).

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