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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

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

2018-12-04 | GSE105900 | 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: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

m6A methylation regulates the fate of endogenous retrovirus transcripts [CRISPR/Cas9]

Project description:Using a genome-scale CRISPR knockout screening in mouse embryonic stem cells, we identify m6A RNA methylation as an important regulatory component that restricts the activity of endogenous retroviruses of the IAP (intracisternal A-particles) family. The m6A methylation of IAP mRNAs occurs on their 5’ end, is catalyzed by the complex of methyltransferase-like (METTL)3/METTL14 proteins whose depletion, along with other complex subunits, namely WTAP and ZC3H13, leads to increased IAP transcript abundance. Using auxin-dependent degron, we show that rapid removal of METTL3, METTL14 and ZC3H13 further increases IAP RNA abundance in a progressive and reversible fashion. Finally, we demonstrate that m6A RNA reduces the stability of IAP transcripts

2020-04-13 | GSE145615 | GEO

m6A methylation regulates the fate of endogenous retrovirus transcripts [RNA-seq]

2020-04-13 | GSE145309 | GEO

m6A methylation regulates the fate of endogenous retrovirus transcripts [RIP-seq]

2020-04-13 | GSE145315 | GEO

m6A methylation regulates the fate of endogenous retrovirus transcripts [CUT & RUN]

2020-08-11 | GSE156007 | 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

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