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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: 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.

ORGANISM(S): Mus musculus

PROVIDER: GSE106613 | GEO | 2018/12/04

REPOSITORIES: GEO

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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: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

| PRJNA417452 | 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: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

A novel RNA m6A modulator Zc3h13 plays an anchor role in facilitating nuclear RNA methylation and mouse embryonic stem cell self-renewal

Project description:N6-methyladenosine (m6A) is an abundant modification in eukaryotic mRNA, regulating mRNA dynamics by influencing mRNA stability, splicing, export and translation. Recent studies discovered m6A methyltransferases (?writer?), demethylases (?eraser?) and binding proteins (?reader?), which modulate m6A methylation. However, the precise m6A regulating machinery still remains incompletely understood. Here we demonstrate that ZC3H13, a zinc finger protein, plays an essential role in modulating m6A methylation on polyadenylated RNA in the nucleus. ZC3H13 exists in an evolutionary-conserved macromolecular complex containing WTAP, Virilizer and Hakai. We confirm the interaction among those proteins and demonstrate that knockdown of Zc3h13 in mouse embryonic stem cell (mESC) significantly decreases global m6A level on mRNA, mainly at 3? untranslated regions (3? UTR). Interestingly, fractionation assays show that upon Zc3h13 knockdown a great majority of WTAP, Virilizer and Hakai translocate to the cytoplasm and the nuclear presence of the methyltransferase Mettl3 and Mettl14 also decrease significantly. In contrast, knockdown of WTAP, Virilizer or Hakai does not change the nuclear localization of Zc3h13. This suggests that Zc3h13 is required for nuclear localization of the Zc3h13-WTAP-Virilizer-Hakai complex, which is important for RNA m6A methylation. Finally, Zc3h13 depletion, as does WTAP, Virilizer or Hakai, impairs self-renewal and triggers mESC differentiation. Taken together, our findings demonstrate that Zc3h13 plays an essential role in anchoring WTAP, Virilizer and Hakai in the nucleus to facilitate m6A methylation and to regulate mESC self-renewal.

2018-03-14 | GSE94148 | GEO

ZC3H13 and WTAP KO in hMDMs multi stimuli(NGS5421)

Project description:Here, we revealed an immunosuppressive role of m6A mediated by ZC3H13 and WTAP on TNF-driven inflammatory phenotype in human macrophages. In the following experiment we would like to investigate if the negative regulatory role of m6A is consistent across multiple stimuli using innate ligands (LPS, R848 and polyIC). We generated ZC3H13 KOs, WTAP KOs and NTC (WT) in monocyte-derived macrophages from 4 individual human donors and stimulated cells over night with LPS (5ng/ml) , R848 (50ng/ml) , polyIC (50ng/ml) and unstimulated cells as control. This yielded a total of 48 total samples.

2024-08-14 | GSE268352 | GEO

RNA-Sequencing of Control KD and KD for Ime4-dMettl14, Fl(2)d, Vir, Nito, CG7358 in S2R+ cells

2018-12-04 | GSE105900 | GEO

Hakai is required for stabilization of core components of the m6A mRNA methylation machinery

Project description:N6-methyladenosine (m6A) is the most abundant internal modification on mRNA which influences most steps of mRNA metabolism and is involved in several biological functions. The E3 ubiquitin ligase Hakai was previously found in complex with components of the m6A methylation machinery in plants and mammalian cells but its precise function remained to be investigated. Here we show that Hakai is a conserved component of the methyltransferase complex in Drosophila and human cells. In Drosophila, its depletion results in reduced m6A levels and altered m6A-dependent functions including sex determination. We show that its ubiquitination domain is required for dimerisation and interaction with other members of the m6A machinery, while its catalytic activity is dispensable. Finally, we demonstrate that the loss of Hakai destabilizes several subunits of the methyltransferase complex, resulting in impaired m6A deposition. Our work adds new functional and molecular insights into the mechanism of the m6A mRNA writer complex.

2021-04-29 | PXD022294 | Pride

Hakai is required for stabilizing core components of the m6A mRNA methylation machinery

Project description:N6-methyladenosine RNA (m6A) is the most abundant internal modification on mRNA which influences most steps of mRNA metabolism and is involved in several biological functions, including circadian clock, metabolism and embryonic stem cell differentiation. The E3 ubiquitin ligase Hakai was previously found in complex with components of the m6A methylation machinery in plants and mammalian cells but its precise function remained to be investigated. Here we show that Hakai is a conserved component of the methyltransferase complex in Drosophila. Its depletion results in reduced m6A levels and altered m6A-dependent functions including sex determination. We show that its ubiquitination domain is required for dimerisation and interaction with other members of the m6A machinery, while its catalytic activity seems dispensable. Finally, we demonstrate that the loss of Hakai destabilizes the level of several subunits of the methyltransferase complex, resulting in impaired m6A deposition. Thus, our work adds new functional and molecular insights into the mechanism of the m6A mRNA writer complex.

2021-04-26 | GSE158663 | GEO

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