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Meg-3 meg-4 mutants are defective in exogenous RNAi signal amplification

ABSTRACT: meg-3 meg-4 mutants are defective in exogenous RNAi signal amplification

PROVIDER: PRJNA555887 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9725710.fastq.gz	Fastqsanger.gz
	SRR9725711.fastq.gz	Fastqsanger.gz
	SRR9725712.fastq.gz	Fastqsanger.gz
	SRR9725703.fastq.gz	Fastqsanger.gz
	SRR9725713.fastq.gz	Fastqsanger.gz

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meg-3 meg-4 mutants are defective in exogenous RNAi signal amplification

Project description:Worms were fed a dsRNA trigger against the pos-1 gene and subjected to sRNAseq to see if they could amplify the exogenous RNAi trigger. meg-3 meg-4 were not able to amplify the signal as robustly as wild-type.

2019-07-23 | GSE134627 | GEO

meg-3 meg-4 upregulate endogenous sRNAs targeting RNAi genes and downregulate their mRNAs

Project description:sRNAseq was conducted on four independently generated meg-3 meg-4 lines, and upregulation of sRNAs targeting several RNAi genes was found. mRNAseq found that the transcript levels for several of these genes was also down. meg-3 meg-4 mutants also showed a similar pattern of sRNA misregulation as the rde-11 mutant.

2019-07-23 | GSE134628 | GEO

The hrde-1 mutation suppresses the rde-11 and sid-1 sRNA upregulation phenotype of meg-3 meg-4 mutants

Project description:sRNAseq was conducted on the hrde-1; meg-3 meg-4 triple mutant, revealing that the hrde-1 mutation suppresses the rde-11 and sid-1 sRNA upregulation phenotype of meg-3 meg-4 mutants .

2019-07-23 | GSE134629 | GEO

meg-3 meg-4 upregulate endogenous sRNAs targeting RNAi genes and downregulate their mRNAs

Project description:meg-3 meg-4 upregulate endogenous sRNAs targeting RNAi genes and downregulate their mRNAs

| PRJNA555888 | ENA

The Caenorhabditis elegans RDE-10/RDE-11 complex regulates RNAi by promoting secondary siRNA amplification

Project description:From a forward genetic screen for C. elegans genes required for RNAi, we identified rde-10 and through proteomic analysis of RDE-10-interacting proteins, we identified a protein complex containing the new RNAi factor RDE-11, the known RNAi factors RSD-2 and ERGO-1, as well as other candidate RNAi factors. The newly identified RNAi defective genes rde-10 and rde-11 encode a novel protein and a RING-type zinc finger domain protein, respectively. Mutations in rde-10 and rde-11 genes cause dosage-sensitive RNAi deficiencies: these mutants are resistant to low dosage, but sensitive to high dosage of double-stranded RNAs. We assessed the roles of rde-10, rde-11, and the dosage-sensitive RNAi defective genes rsd-2, rsd-6 and haf-6 in both exogenous and endogenous small RNA pathways using high-throughput sequencing and qRT-PCR. These genes are required for the accumulation of secondary siRNAs in both exogenous and endogenous RNAi pathways.

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The gene expression upon dominant negative form of GAS2 (GAS2DN) in MEG-01 cells

Project description:GAS2DN could suppress the growth of chronic myeloid leukemia cells, including K562, MEG-01 and CD34+ cells from patients. In addition, GAS2DN inhibited the tumorigenic ability of MEG-01 cells in nude mice. To understand the molecular insight of this inhibitory effect of GAS2DN, global gene expression were performed. The control and GAS2DN-transduced MEG-01 cells were used for microarray analysis. Three biological independent extracts of control and GAS2DN-transduced cells were pooled together with equal amount, and then the pooled samples were compared with Affymetrix chips.

2013-07-25 | E-GEOD-49184 | biostudies-arrayexpress

The gene expression upon dominant negative form of GAS2 (GAS2DN) in MEG-01 cells

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Pisolithus albus strain:Meg 11

Project description:Pisolithus albus Meg 11 Resequencing

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Protein-protein interactions of MEG-3 in C. elegans early embryos

Project description:We combined in vivo expressed GFP-tagged MEG-3 (GEI-12) with label-free quantitative proteomics to identify protein-protein interactions of MEG-3 in early C. elegans embryos.

2021-07-01 | PXD012852 | Pride

Protein interactors of MEG-1 in C. elegans embryos

Project description:In animals with germ plasm, specification of the germline involves “germ granules”, cytoplasmic condensates that enrich maternal transcripts in the germline founder cells. In C. elegans embryos, P granules enrich maternal transcripts, but surprisingly P granules are not essential for germ cell fate specification. Here we have described a second condensate in the C. elegans germ plasm. Like canonical P-bodies found in somatic cells, “germline P-bodies” contain regulators of mRNA decapping and deadenylation and, in addition, the intrinsically-disordered proteins MEG-1 and MEG-2 and the TIS11-family RNA-binding protein POS-1. Embryos lacking meg-1 and meg-2 do not stabilize P-body components, miss-regulate POS-1 targets, miss-specify the germline founder cell, and do not develop a germline. Our findings suggest that specification of the germ line involves at least two distinct condensates that independently enrich and regulate maternal mRNAs in the germline founder cells.

2022-10-05 | PXD036610 | Pride

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