Loss of m6A methyltransferase METTL5 promotes cardiac hypertrophy through translational control of SUZ12
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ABSTRACT:
PROVIDER: PRJNA774794 | ENA |
REPOSITORIES: ENA
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Project description:The methyltransferase-like5 (METTL5), which catalyzes m6A in 18S rRNA at position A1832, has been shown to regulate the efficient of mRNA translation in the differentiation of ES cell and the growth of cancer cells. It remains unknown that whether and how METTL5 regulates cardiac hypertrophy. In this study, we generated a mouse model (METTL5-cKO) with cardiac-specific abolishment of METTL5 in vivo. Loss function of METTL5 promotes pressure overload-induced cardiomyocyte hypertrophy and adverse remodeling. The regulatory function of METTL5 in hypertrophic growth of cardiomyocyte were further confirmed with both gain- and loss-of-function approaches in primary isolated cardiomyocytes. Mechanically, METTL5 was identified to modulate the mRNA translation of SUZ12, a core component of PRC2 complex, and further regulate the transcriptome shift during cardiac hypertrophy. Therefore, our study uncover an important translational regulator of cardiac hypertrophy.
2022-02-13 | GSE186615 | GEO
Project description:Cellular RNAs are covalently modified and these modifications can impact on all biological processes and hence are implicated in different types of diseases. Amongst RNA modifications, N6-methyladenosine (m6A) is one of the most widespread and has been found on messenger (mRNA), ribosomal (rRNA), non-coding and spliceosomal RNAs. We undertook a systematic screen to uncover new RNA-methyltransferases. We demonstrate that the methyltransferase-like 5 protein (METTL5) is an 18S rRNA specific methyltransferase and interacts specifically with Trmt122.
2020-09-09 | PXD015582 | Pride
Project description:N6-methyladenosine (m6A) has recently been found abundantly on messenger RNA and shown to regulate most steps of mRNA metabolism. Several important m6A methyltransferases have been described functionally and structurally, but the enzymes responsible for installing one m6A residue on each subunit of human ribosomes at functionally important sites have eluded identification for over 30 years. Here we identify METTL5 as the enzyme responsible for 18S rRNA m6A modification and confirm ZCCHC4 as the 28S rRNA modification enzyme. We show that METTL5 must form a heterodimeric complex with TRMT112, a known methyltransferase activator, to gain metabolic stability in cells. We provide the first atomic resolution structure of METTL5-TRMT112, supporting that its RNA binding mode differs distinctly from that of other m6A RNA methyltransferases. On the basis of similarities with a DNA methyltransferase, we propose that METTL5-TRMT112 acts by extruding the adenosine to be modified from a double-stranded nucleic acid.
2019-07-15 | GSE128699 | GEO
Project description:Covalent chemical modifications of cellular RNAs directly impact all biological processes. However, our mechanistic understanding of the enzymes catalysing these modifications, their substrates and biological functions remains vague. Here, we undertook a systematic screen to uncover new RNA methyltransferases. We demonstrate that the methyltransferase-like 5 (METTL5) protein catalyses m6A in 18S rRNA at position A1832. We report that absence of Mettl5 in mouse embryonic stem cells (mESCs) results in a changes gene expression, decrease in translation rate, spontaneous loss of pluripotency and compromised differentiation potential. Mice lacking METTL5 recapitulate symptoms of patients with METTL5 mutations, thereby providing a new mouse disease model. Overall, our work highlights the importance of m6A in rRNA in stemness, differentiation, development and diseases.
2020-04-15 | GSE144346 | GEO
Project description:METTL5 is an RNA methyltransferase whose stability was noted to be poor when expressed in both mammalian and bacterial expression systems. To determine if METTL5 has an endogenous stabilizing binding partner, FLAG-tagged METTL5 was expressed in Freestyle 293 cells and pulled down with anti-FLAG-M2 antibody-coupled magnetic beads. Bound proteins were fractionated by SDS-PAGE, and bands of interest were cut out for proteomics analysis.
2022-01-27 | PXD029574 | Pride
Project description:RNA N6-methyladenosine (m6A) modification is present in different RNA molecules, including protein-coding mRNAs and non-coding RNAs such as ribosomal RNAs (rRNAs).Here, we report that mammalian METTL5, a member of a highly conserved methyltransferase family, specifically methylates adenosine 1832 (A1832) in the 18S rRNA in vivo and in vitro.
2020-09-17 | GSE138123 | GEO
Project description:We report the application of MeRIP-seq to map m6A peaks in wild type and METTL5 KO HeLa cells to investigate targets of the m6A methyltransferase METTL5.
2021-05-19 | GSE174420 | GEO
Project description:Covalent chemical modifications of cellular RNAs directly impact all biological processes. However, our mechanistic understanding of the enzymes catalysing these modifications, their substrates and biological functions remains vague. Here, we undertook a systematic screen to uncover new RNA methyltransferases. We demonstrate that the methyltransferase-like 5 (METTL5) protein catalyses m6A in 18S rRNA at position A1832. We report that absence of Mettl5 in mouse embryonic stem cells (mESCs) results in a changes gene expression, decrease in translation rate, spontaneous loss of pluripotency and compromised differentiation potential. Mice lacking METTL5 recapitulate symptoms of patients with METTL5 mutations, thereby providing a new mouse disease model. Overall, our work highlights the importance of m6A in rRNA in stemness, differentiation, development and diseases.
2020-04-15 | GSE144313 | GEO
Project description:We investigate the contribution of each SUZ12 isoform on PRC2 activity on chromatin using our different ESC lines. As an additional comparison for ∆ex4 cells (SUZ12-S), we included an ESC clone in which an unsuccessful CRISPR editing event resulted in a mutant allele with nearly constitutive splicing of exon 4 (herein, CSex4) and normal Suz12 expression levels (expressing only SUZ12-L). First, we profiled H3K27 bulk PTMs by WB and observed that, while CSex4 cells showed no major differences to control cells, ∆ex4 cells displayed lower levels of H3K27me2 and -me3, with higher levels of mono-methylation and acetylation. Similar results were obtained when comparing SUZ12-L and SUZ12-S ESC rescue lines. To validate these findings with an antibody-independent technique, and to additionally profile other histone PTMs, we analysed these cells with histone-MS. In line with the previous estimates26, WT cells displayed approximately 85% of H3K27 methylation. This proportion was largely similar in CSex4 cells, while it dropped to ~50% in ∆ex4 cells, with H3K27me2 and -me3 being the most affected modifications. Notably, H3K27me2/3 loss in ∆ex4 cells occurred at histone peptides regardless of their H3K36 methylation status. Moreover, the global H3K36 methylation rates were not affected in either CSex4 or ∆ex4 cells (Figure S4C), and no major changes in methylation or acetylation levels were observed at other residues. Importantly, reintroduction of SUZ12-L in KO cells rescued a higher degree of methylation compared to SUZ12-S. Overall, these results indicate that SUZ12-S alone is unable to maintain global physiological levels of H3K27 methylation; rather SUZ12-L is also necessary for this task.
2024-03-18 | PXD046640 | Pride
Project description:Input mRNAs and ribosome protected fragments (RPFs) from wildtype and Mettl5 knockout (KO) mESC cells were analyzed by TruSeq Ribo Profile (Illumina) library preparation and high throughput sequencing
2020-08-03 | GSE138341 | GEO