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Transcritome profiling of plp-1-mutant Caenorhabditis elegans

ABSTRACT: Transcritome profiling of plp-1-mutant Caenorhabditis elegans

PROVIDER: PRJNA675108 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13001237_1.fastq.gz	Fastqsanger.gz
	SRR13001237_2.fastq.gz	Fastqsanger.gz
	SRR13001238_1.fastq.gz	Fastqsanger.gz
	SRR13001238_2.fastq.gz	Fastqsanger.gz
	SRR13001239_1.fastq.gz	Fastqsanger.gz

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Transcritome profiling of plp-1-mutant Caenorhabditis elegans

Project description:Through high-throuhgput RNA-sequencing, this study identifies mRNAs that are differentially expressed between plp-1(ok2155) and wild-type C. elegans. Analysed results are published in Development. 2020 Oct 13:dev.195578. doi: 10.1242/dev.195578. PMID: 33051256 Abstract of the publication: The germ line genome is guarded against invading foreign genetic elements by small RNA-dependent gene-silencing pathways. Components of these pathways localize to, or form distinct aggregates in the vicinity of, germ granules. These components and their dynamics in and out of granules are currently being intensively studied. Here, we report the identification of PLP-1, a C. elegans protein related to the human single-stranded nucleic acid-binding protein called Pur-alpha, as a component of germ granules in C. elegans We show that PLP-1 is essential for silencing different types of transgenes in the germ line, and for suppressing the expression of several endogenous genes controlled by the germline gene-silencing pathways. Our results reveal that PLP-1 functions downstream of small RNA biogenesis during initiation of gene silencing. Based on these results and the earlier findings that Pur-alpha proteins interact with both RNA and protein, we propose PLP-1 couples certain RNAs with their protein partners in the silencing complex. Its orthologs localized on RNA granules may similarly contribute to germline gene silencing in other organisms.

2020-11-07 | GSE161011 | GEO

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Project description:Inhibition of insulin/IGF-1 signaling (IIS) represents a promising avenue for the treatment of mitochondrial diseases, although many of the molecular mechanisms underlying this beneficial effect remain elusive. Here, we investigate the phosphoproteomic landscape of Caenorhabditis elegans with severe mitochondrial deficiency in the context of insulin signaling inhibition.

2019-02-13 | PXD011859 | Pride

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Project description:Inhibition of insulin/IGF-1 signaling (IIS) represents a promising avenue for the treatment of mitochondrial diseases, although many of the molecular mechanisms underlying this beneficial effect remain elusive. Here, we investigate the proteomic landscape of Caenorhabditis elegans with severe mitochondrial deficiency in the context of insulin signaling inhibition.

2019-02-13 | PXD011851 | Pride

Caenorhabditis elegans N2: Control vs. Lysinibacillus sphaericus-fed

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Project description:Background: The force generating mechanism of muscle is evolutionarily ancient; the fundamental structural and functional components of the sarcomere are common to motile animals throughout phylogeny. Recent evidence suggests that the transcription factors that regulate muscle development are also conserved. Thus, a comprehensive description of muscle gene expression in a simple model organism should define a basic muscle transcriptome that is also expressed in animals with more complex body plans. To this end, we have applied Micro-Array Profiling of Caenorhabditis elegans Cells (MAPCeL) to muscle cell populations extracted from developing Caenorhabditis elegans embryos. Results: Fluorescence Activated Cell Sorting (FACS) was used to isolate myo-3::GFP-positive muscle cells, and their cultured derivatives, from dissociated early Caenorhabditis elegans embryos. Microarray analysis identified 6,693 expressed genes, 1,305 of which are enriched in the myo-3::GFP positive cell population relative to the average embryonic cell. The muscle-enriched gene set was validated by comparisons to known muscle markers, independently derived expression data, and GFP reporters in transgenic strains. These results confirm the utility of MAPCeL for cell type-specific expression profiling and reveal that 60% of these transcripts have human homologs. Conclusions: This study provides a comprehensive description of gene expression in developing Caenorhabditis elegans embryonic muscle cells. The finding that over half of these muscle-enriched transcripts encode proteins with human homologs suggests that mutant analysis of these genes in Caenorhabditis elegans could reveal evolutionarily conserved models of muscle gene function with ready application to human muscle pathologies. Keywords: embryonic muscle, myo-3::GFP

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