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Small RNA Seq of Subcutaneous adipose tissue from endothelial-AGO1-knockout (EC-AGO1-KO) mice and wild-type (WT) littermates fed 16 week of high fat high sucrose diet

ABSTRACT: Purpose:to reveal the changes in small RNA, esp. microRNA to correlate with transcriptome changes occuring due to EC-AGO1-KO and further explain the observed phenotype. Methods: Subcutaneous adipose tissue were harvested.Small RNA library was prepared and for sequencing. Results: We found substantial changes in miRNA due to EC-AGO1-KO. Conclusions: Our study represents the detailed analysis of Ago1 regulated small RNA transcriptomes in subcutaneous adipose tissue between WT and KO mice. We conclude that small RNA-seq based transcriptome characterization would expedite genetic network analyses and permit the dissection of complex biologic functions.

ORGANISM(S): Mus musculus

PROVIDER: GSE136911 | GEO | 2019/09/06

REPOSITORIES: GEO

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RNA Seq of Subcutaneous adipose tissue from endothelial-AGO1-knockout (EC-AGO1-KO) mice and wild-type (WT) littermates

Project description:Purpose: to profile transcriptome changes due to EC-AGO1-deficiency Methods: Subcutaneous adipose tissue were harvested. RNA was extracted using TRIzol and library was prepared for sequencing. Results: We found genes involved in pathways promoting angiogenesis, browning, insulin sensitivity to be upregulated, and those promoting inflammation and fibrosis to be decreased in KO compared with WT mice. Conclusions:Our study represents the detailed analysis of Ago1 regulate transcriptomes in SAT between WT and KO mice. We conclude that RNA-seq based transcriptome characterization would expedite genetic network analyses and permit the dissection of complex biologic functions.

2019-09-06 | GSE136910 | GEO

RNA Seq of Subcutaneous adipose tissue from endothelial-AGO1-knockout (EC-AGO1-KO) mice and wild-type (WT) littermates

Project description:RNA Seq of Subcutaneous adipose tissue from endothelial-AGO1-knockout (EC-AGO1-KO) mice and wild-type (WT) littermates

| PRJNA564027 | ENA

small RNA Seq of Subcutaneous adipose tissue from endothelial-AGO1-knockout (EC-AGO1-KO) mice and wild-type (WT) littermates fed 16 week of high fat high sucrose diet

Project description:small RNA Seq of Subcutaneous adipose tissue from endothelial-AGO1-knockout (EC-AGO1-KO) mice and wild-type (WT) littermates fed 16 week of high fat high sucrose diet

| PRJNA564029 | ENA

Endothelial-AGO1-knockout (EC-AGO1-KO) mice and wild-type (WT) littermates

Project description:Endothelial-AGO1-knockout (EC-AGO1-KO) mice and wild-type (WT) littermates

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AGO1-dependent Small RNA in Arabidopsis Identified by High-Throughput Sequencing

Project description:The goal of this study was to identify AGO1-dependent miRNA and tasiRNA in Arabidopsis by sequencing small RNA from wild type (Col-0) and ago1-25 plants. Keywords: Small RNA

2008-11-17 | GSE13605 | GEO

AGO1-dependent Small RNA in Arabidopsis Identified by High-Throughput Sequencing

Project description:The goal of this study was to identify AGO1-dependent miRNA and tasiRNA in Arabidopsis by sequencing small RNA from wild type (Col-0) and ago1-25 plants. Keywords: Small RNA Sequencing-by-synthesis technology was used to sequence small RNA from flower tissue (stages 1-12) from wild-type (Col-0) and ago1-25 Arabidopsis thaliana plants. Three biological replicates were sequenced for both Col-0 and ago1-25.

2008-11-17 | E-GEOD-13605 | biostudies-arrayexpress

The Arabidopsis F-box protein FBW2 degrades AGO1 to avoid spurious loading of illegitimate small RNA

Project description:RNA silencing is a conserved mechanism in eukaryotes and is involved in development, heterochromatin maintenance and defense against viruses. In plants, ARGONAUTE1 (AGO1) protein plays a central role in both microRNA (miRNA) and small interfering RNA (siRNA)-directed silencing and its expression is regulated at multiple levels. Here, we report that the F-box protein FBW2 targets proteolysis of AGO1 by a CDC48-mediated mechanism. We found that FBW2 assembles an SCF complex that recognizes the MID-PIWI domain of AGO1 and requires its C-terminal domain containing a GW motif for AGO1 turnover. We showed that FBW2 has a preference for the unloaded and for some mutated forms of AGO1 protein. While FBW2 loss of function does not lead to strong growth or developmental defects, it significantly increases RNA silencing activity. Interestingly, under conditions in which small RNA production or accumulation is affected, the failure to degrade AGO1 in fbw2 mutants becomes more deleterious for the plant. Hence, we showed that the non-degradable AGO1 protein assembles high molecular complexes and binds illegitimate small RNA leading to the cleavage of new target genes that belong to stress responses and cellular metabolic processes. Therefore, the control of AGO1 homeostasis by ubiquitin ligases, plays an important quality control to avoid off-target cleavage.

2022-04-01 | PXD024840 | Pride

Total and AGO1 immunoprecipitated small RNA from Arabidopsis thaliana wild-type and ago1-57 mutant

Project description:In Arabidopsis thaliana, ARGONAUTE1 (AGO1) plays a central role[AQ1] in microRNA (miRNA) and small interfering RNA (siRNA)- mediated silencing and is a key component in antiviral responses. The polerovirus F-box P0 protein triggers AGO1 degradation as a viral counterdefense. Here, we identified a motif in AGO1 that is required for its interaction with the S phase kinase-associated protein1-cullin 1-F-box protein (SCF) P0 (SCFP0) complex and subsequent degradation. The AGO1 P0 degron is conserved and confers P0-mediated degradation to other AGO[AQ2] proteins. Interestingly, the degron motif is localized in the DUF1785 domain of AGO1, in which a single point mutation (ago1-57, obtained by forward genetic screening) compromises recognition by SCFP0. Recapitulating formation of the RNA-induced silencing complex in a cell-free system revealed that this mutation impairs RNA unwinding, leading to stalled forms of AGO1 still bound to double-stranded RNAs. In vivo, the DUF1785 is required for unwinding perfectly matched siRNA duplexes, but is mostly dispensable for unwinding imperfectly matched miRNA duplexes. Consequently, its mutation nearly abolishes phased siRNA production and sense transgene posttranscriptional gene silencing. Overall, our work sheds new light on the mode of AGO1 recognition by P0 and the in vivo function of DUF1785 in RNA silencing.

2018-06-22 | GSE104015 | GEO

Ago1 vs Ago2-IP small RNA deep-sequencing with age in Drosophila

Project description:Drosophila miRNAs show distinct change in isoform distribution pattern with age. Some miRNAs show accumulation of the short isoforms, while other miRNAs show the accumulation of the long isoforms with age. The increase of the long isoforms of some miRNAs reflects increased 2'-O-methylated miRNA isoforms with age. The increase in 2'-O-methylated miRNA isoforms reflected increased Ago2-loading, but not Ago1-loading of specific miRNA isoforms with age. This raised a question on whether there is global shift in small RNA loading pattern between Ago1 and Ago2 with age. To investigate change in small RNA loading pattern between Ago1 and Ago2 with age, we performed small RNA deep-sequencing of Ago1 vs Ago2-IP small RNAs at 3d and 30d in Drosophila. This analysis revealed global increase of miRNA loading into Ago2, but not into Ago1 with age.

2014-01-01 | GSE52961 | GEO

Transcription profiling of Arabidopsis wild-type, ago1-10, ago1-11, and dcl1-9 ec. Landsberg erecta seedling at 9, 21, and 35 days after germination reveals miRNA-Targeted and siRNA-Mediated mRNA Degradation Regulated by Argonaute, Dicer and RdRP

Project description:Microarray expression profiles of wild-type, ago1-10, ago1-11, and dcl1-9 Arabidopsis thaliana ec. Landsberg erecta seedling at 9, 21, and 35 days after germination. Experiment Overall Design: Reference design, wild-type vs mutants, multiple biological replicates

2008-06-13 | E-GEOD-4684 | biostudies-arrayexpress

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