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Mus musculus

ABSTRACT: Deep sequencing analysis of the thymoproteasome-dependent CD8+ TCR repertoire

PROVIDER: PRJDB10987 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	DRR261389_1.fastq.gz	Fastqsanger.gz
	DRR261389_2.fastq.gz	Fastqsanger.gz
	DRR261390_1.fastq.gz	Fastqsanger.gz
	DRR261390_2.fastq.gz	Fastqsanger.gz
	DRR261391_1.fastq.gz	Fastqsanger.gz

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Mus musculus strain:C57BL/6J

Project description:CD8+ T cell receptor (TCR) repertoire analysis

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Deep sequencing and flow cytometric characterization of expanded effector memory CD8+CD57+ T cells frequently reveals T-cell receptor Vβ oligoclonality and CDR3 homology in acquired aplastic anemia

Project description:In this work, we investigated the frequency and oligoclonal expansion of effector CD28-CD57+ memory cells in CD8+ T cell compartments and the T-cell Receptor (TCR) Vβ repertoire in acquired aplastic anemia (AA) to provide additional evidence to the immune hypothesis in AA pathophysiology. Using flow cytometry, deep sequencing, and computational methods, we examined the blood of 32 AA patients and 29 appropriate controls for Vβ usage; eight of these patients showing CD8+CD57+ expansion and three healthy subjects were subjected to TCR deep sequencing to confirm the clonality. We showed that CD8+CD57+ cells were frequently expanded with oligoclonal characteristics in AA, and patients and healthy donors shared CD8+ clonotypes by complementarity-determining region 3 sequences analysis.

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Mus musculus primary CD4+ T cell di-glycine remnant and whole cell proteomics

Project description:It is known that ubiquitination is important for T cell receptor (TCR) signaling during T cell activation but the breadth of ubiquitination events triggered during TCR signaling is not completely understood. This dataset utilizes di-glycine remnant profiling combined with mass spectrometry to identify a global landscape of ubiquitination events downstream of the TCR and to quantify changes ubiquitin abundance in response to TCR stimulation. Additionally, whole cell proteomics data were generated to measure protein abundances during TCR stimulation. Mouse primary T cells were isolated, proliferated and either remained resting or stimulated with CD3/CD28 to activate downstream signaling through the TCR and co-stimulatory pathways. Di-glycine remnant profiling and whole cell proteomics was performed on rested cells and cells that had undergone CD3/CD28 TCR stimulation for 4 hours. These data were analyzed to identify the ubiquitination events during TCR activation and to quantify the change in peptide-based ubiquitin abundance and total protein abundance over the course of the 4 hour TCR stimulation. Integration of di-glycine and whole cell proteomics was used to generate protein-specific predictions of whether ubiquitination events downstream of TCR signaling lead to a decrease in associated protein abundance. The analysis of these data suggests that T cell activation leads to an increase in ubiquitination that is not associated with proteasomal or lysosomal degradation.

2019-05-09 | PXD012831 | Pride

Mus musculus

Project description:Analysis of TCR repertoire in beta5t-deficient mice

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Mus musculus

Project description:Analysis of TCR repertoire in beta5t-deficient mice

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HIGHLY DIVERSE TCRalpha CHAIN REPERTOIRE OF PRE-IMMUNE CD8+ T CELLS REVEALS NEW INSIGHTS IN GENE RECOMBINATION

Project description:By sequencing tens of millions of TCR? chain transcripts from naïve mouse CD8+ T cells, we observed a hugely diverse repertoire, comprising nearly all possible TRAV-TRAJ combinations. Our findings are not compatible with sequential coordinate gene recombination, but rather with a model in which contraction and DNA looping in the TCR?? locus provide equal access to TRAV and TRAJ gene segments, similar to that demonstrated for IgH gene recombination High-throughput sequencing of entire TCRa repertoire from C57Bl/6 mice

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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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Project description:Purpose: To study the alteration of whole transcriptome of Lewis lung carcinoma (LLC) cells after the decreasing of malignant properties of tumor by treatment of tumor-bearing mice with RNase A. Methods: Whole transcriptome profile of Lewis lung carcinoma before and after RNase A treatment were generated by deep sequencing using SOLiD 5.5. The sequence reads were mapped by Bioscope 1.3 software, differential expression was evaluated by Cufflinks v.2.0.1 package. Results: Difference in expression was found for 966 genes. Conclusions: Our study represents the first detailed analysis of alteration of transcriptome of Lewis lung carcinoma after the decrease of malignant prtoperties of the tumor (proliferation and invasion) by RNase A. Whole transcriptome profile of Lewis lung carcinoma before and after RNase A treatment were generated by deep sequencing using SOLiD 5.5.

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