Evidence map›Paper›PMID 32813009›Full record

ArticleNucleic acids research2020

METTL4 catalyzes m6Am methylation in U2 snRNA to regulate pre-mRNA splicing.

Yeek Teck Goh, Casslynn W Q Koh, Donald Yuhui Sim, Xavier Roca, W S Sho Goh

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
4.8field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

86 citing papers in PubMed, 109 citations in OpenAlex.

  1. Review
  2. Review
  3. METTL4 enhances GLI1 translation through mJournal of advanced research · 2026
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  5. Engineering Bisubstrates to Target mChemistry (Weinheim an der Bergstrasse, Germany) · 2026
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  6. FTO separation-of-function mutations alter mbioRxiv : the preprint server for biology · 2026
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  8. Review
  9. Article
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  11. Review
  12. Article
  13. Review
  14. Article
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  16. Article
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  20. Article

26 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Yeek Teck GohGenome Institute of Singapore, 60 Biopolis Street, Singapore 138672, Singapore.
Casslynn W Q KohGenome Institute of Singapore, 60 Biopolis Street, Singapore 138672, Singapore.
Donald Yuhui SimSchool of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore.
Xavier RocaSchool of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore.
W S Sho GohGenome Institute of Singapore, 60 Biopolis Street, Singapore 138672, Singapore.
Genome Institute of Singapore · SGNanyang Technological University · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

N 6-methylation of 2'-O-methyladenosine (Am) in RNA occurs in eukaryotic cells to generate N6,2'-O-dimethyladenosine (m6Am). Identification of the methyltransferase responsible for m6Am catalysis has accelerated studies on the function of m6Am in RNA processing. While m6Am is generally found in the first transcribed nucleotide of mRNAs, the modification is also found internally within U2 snRNA. However, the writer required for catalyzing internal m6Am formation had remained elusive. By sequencing transcriptome-wide RNA methylation at single-base-resolution, we identified human METTL4 as the writer that directly methylates Am at U2 snRNA position 30 into m6Am. We found that METTL4 localizes to the nucleus and its conserved methyltransferase catalytic site is required for U2 snRNA methylation. By sequencing human cells with overexpressed Mettl4, we determined METTL4's in vivo target RNA motif specificity. In the absence of Mettl4 in human cells, U2 snRNA lacks m6Am thereby affecting a subset of splicing events that exhibit specific features such as 3' splice-site weakness and an increase in exon inclusion. These findings suggest that METTL4 methylation of U2 snRNA regulates splicing of specific pre-mRNA transcripts.

Indexed as

AdenosineCatalysisExonsHumansMethylationMethyltransferasesRNA, MessengerRNA PrecursorsRNA, Small NuclearRNA Splice SitesRNA SplicingSpliceosomesAdenosineMethyltransferasesMETTL4 protein, humanN-methyladenosineRNA, MessengerRNA PrecursorsRNA, Small NuclearRNA Splice SitesU2 small nuclear RNA

Identifiers

PMID32813009
PMCPMC7498333
OpenAlexW3070216023

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.