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Zc3h13/Flacc is required for adenosine methylation by bridging the mRNA binding factor Rbm15/Spenito to other components of the m6A machinery

ABSTRACT: Zc3h13/Flacc is required for adenosine methylation by bridging the mRNA binding factor Rbm15/Spenito to other components of the m6A machinery

PROVIDER: PRJNA417452 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6263730.fastq.gz	Fastqsanger.gz
	SRR6263731.fastq.gz	Fastqsanger.gz
	SRR6263732.fastq.gz	Fastqsanger.gz
	SRR6263733.fastq.gz	Fastqsanger.gz
	SRR6263734.fastq.gz	Fastqsanger.gz

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Zc3h13/Flacc is required for adenosine methylation by bridging the mRNA binding factor Rbm15/Spenito to other components of the m6A machinery

Project description:m6A is catalyzed by the activity of Mettl3, which depends on additional proteins whose precise functions remain poorly understood. Here we identified Zc3h13 as a novel interactor of m6A methyltransferase complex components in mouse. Like other components of this complex, Zc3h13 controls m6A levels.

2018-12-04 | GSE106613 | GEO

Zc3h13/Flacc is required for adenosine methylation by bridging the mRNA binding factor Rbm15/Spenito to other components of the m6A machinery

Project description:N6-methyladenosine (m6A) is an abundant RNA modification in eukaryotes, playing crucial roles in multiple biological processes. m6A is catalyzed by the activity of Mettl3, which depends on additional proteins whose precise functions remain poorly understood. Here we identified Flacc/Zc3h13 as a novel interactor of m6A methyltransferase complex components in Drosophila and mouse. Like other components, Flacc controls m6A levels and is involved in sex determination in Drosophila. We demonstrate that Flacc promotes the recruitment of the methyltransferase to mRNA by bridging Fl(2)d to the mRNA binding factor Spenito. Altogether, our work advances our molecular understanding of conservation and regulation of the m6A machinery.

2018-12-20 | PXD008111 | Pride

Zc3h13/Flacc is required for adenosine methylation by bridging the mRNA binding factor Rbm15/Spenito to other components of the m6A machinery

Project description:Zc3h13/Flacc is required for adenosine methylation by bridging the mRNA binding factor Rbm15/Spenito to other components of the m6A machinery

| PRJNA417455 | ENA

Zc3h13/Flacc is required for adenosine methylation by bridging the mRNA binding factor Rbm15/Spenito to other components of the m6A machinery

Project description:This SuperSeries is composed of the SubSeries listed below.

2018-12-04 | GSE106614 | GEO

Zc3h13/Flacc is required for adenosine methylation by bridging the mRNA-binding factor Rbm15/Spenito to the m<sup>6</sup>A machinery component Wtap/Fl(2)d.

Project description:N6-methyladenosine (m6A) is the most abundant mRNA modification in eukaryotes, playing crucial roles in multiple biological processes. m6A is catalyzed by the activity of methyltransferase-like 3 (Mettl3), which depends on additional proteins whose precise functions remain poorly understood. Here we identified Zc3h13 (zinc finger CCCH domain-containing protein 13)/Flacc [Fl(2)d-associated complex component] as a novel interactor of m6A methyltransferase complex components in Drosophila and mice. Like other components of this complex, Flacc controls m6A levels and is involved in sex determination in Drosophila We demonstrate that Flacc promotes m6A deposition by bridging Fl(2)d to the mRNA-binding factor Nito. Altogether, our work advances the molecular understanding of conservation and regulation of the m6A machinery.

| S-EPMC5900714 | biostudies-literature

Control of gene expression by Ott1/RBM15 protein

Project description:The conserved mRNA nuclear export receptor NXF1 (Mex67 in yeast) assembles with messenger ribonucleoproteins (mRNP) in the nucleus and guides them through the nuclear pore complex (NPC) into the cytoplasm. The DEAD-box RNA helicase Dbp5 is essential for nuclear export of mRNA and is thought to dissociate Mex67 from mRNP upon translocation, thereby generating directional passage. However, the molecular mechanism by which Dbp5 recognizes Mex67-containing mRNP is not clear. Here we report that the human NXF1-binding protein RBM15 binds to DBP5 specifically and enables its direct contact with mRNA. We found that RBM15 is enriched at the nuclear envelope and colocalizes with DBP5 at the NPC. Knockout of RBM15’s orthologue in mouse (Ott1) leads to global changes in mRNA expression and excessive mRNA accumulation in the cytoplasm, indicating an essential role of RBM15 in mRNA export regulation. We propose that RBM15 acts locally at the NPC, by transiently bridging the NXF1-mRNP complexes to DBP5, thereby contributing to the substrate specificity of mRNA export.

2008-06-18 | GSE11785 | GEO

Rbm15-irCLIP-seq

Project description:Rbm15-irCLIP-seq

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Rbm15-irCLIP-seq

Project description:we performed infrared crosslinking immunoprecipitation followed by sequencing (irCLIP-seq) (Zarnegar et al., 2016) for Rbm15 to directly map its binding sites on RNA. As a principle of concept, the cells were engineered to simultaneously express emGFP-Rbm15 and Xist RNA together, as Rbm15 strongly interacts with Xist A-repeat to deposit the m6A methylation downstream. Cross-linking induced truncation site (CITS or RT stops) is the main signature occurring at our irCLIP-seq datasets. RNA meta-profile plot against normalized transcripts shows that these CITSs reside across the transcript, with 2 main peaks in transcript starts and near the stop-codon regions, in agreement with the RBM15/15B binding profile in human cells (Patil et al., 2016).Motif analysis against CITSs revealed that Rbm15 binding sites prefer U-rich stretches, namely 3 or 4 consecutive Us. This is also true for crosslinking induced mutations (CIMS).

2020-09-15 | GSE154708 | GEO

RBM15 CoIP in mouse Embryonic Stem cells

Project description:RBM15 interactome has been determined in mouse Embryonic Stem cells. The cells express inducible emGFP-PreScission-RBM15 alongside with inducible Xist RNA.

2020-02-07 | PXD017348 | Pride

RBM15-mediated Metabolic Reprogramming Boosts Immune Response in Colorectal Cancer

Project description:Immune checkpoint blockade (ICB) offers therapeutic options for patients with advanced colorectal cancer; however, only a subset of patients with microsatellite instability-high (MSI-H) tumors respond to treatment. Therefore, strategies to enhance immunotherapy sensitivity are urgently needed. In this study, we demonstrate that RBM15 is highly expressed in colorectal cancer and is associated with poor prognosis. Loss of RBM15 increases the expression of fumarate hydratase (FH), leading to a reduction in its substrate fumarate, which acts as a suppressor of anti-tumor immunity. Notably, RBM15 depletion delays tumor growth by promoting CD8+ T cell infiltration. Our findings identify RBM15 as a key suppressor of anti-tumor immunity, suggesting that targeting RBM15 could be a promising therapeutic strategy in colorectal cancer.

2025-04-15 | GSE279678 | GEO

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