Evidence map›Paper›PMID 39673800›Full record

ArticleNucleic acids research2025

Spatial regulation of NSUN2-mediated tRNA m5C installation in cognitive function.

Yulia Gonskikh, Christian Tirrito, Praneeth Bommisetti, Maria Saraí Mendoza-Figueroa, Julian Stoute, Joshua Kim, Qin Wang, Yuanquan Song, Kathy Fange Liu

Abstract read
In one paragraph

Article in Nucleic acids research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Review
  2. Article
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  5. Review
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  8. Epitranscriptomic alterations induced by environmental toxins: implications for RNA modifications and disease.Genes and environment : the official journal of the Japanese Environmental Mutagen Society · 2025
    Review
  9. Review
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

9 authors.

Yulia GonskikhDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Christian TirritoBiology Graduate Group, University of Pennsylvania, School of Arts and Sciences, Philadelphia, PA 19104, USA.
Praneeth BommisettiDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Maria Saraí Mendoza-FigueroaDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Julian StouteDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Joshua KimThe Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Qin WangThe Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Yuanquan SongThe Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Kathy Fange LiuDepartment of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.ORCID 0000-0001-5943-3888

Funding

Structural biology and molecular biophysics training programT32GM132039 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI Ben E. Black, Elizabeth Rhoades · 2019 to 2026
$3.3M
Coregulation of mRNA, tRNA, and rRNA species through RNA modificationsR35GM133721 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI LIU, FANGE · 2019 to 2023
$2.5M
Catalytic roles of RNA methyltransferase DIMT1R01HL160726 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI COOPERMAN, BARRY S., LIU, FANGE · 2022 to 2025
$2.4M
American Cancer Society RSG-22-064-01-RMCDamon Runyon Cancer Research FoundationNHLBI NIH HHS R01 HL160726NIGMS NIH HHS R35 GM133721NIGMS NIH HHS T32 GM132039NIH HHS R35GM133721Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung P2BEP3_200 056University of Pennsylvania
6 · The paper itself

Abstract

Enzyme-mediated modifications of tRNA, such as 5-methylcytosine (m5C) installed by nuclear-enriched NOP2/Sun RNA methyltransferase 2 (NSUN2), play a critical role in neuronal development and function. However, our understanding of these modifications' spatial installation and biological functions remains incomplete. In this study, we demonstrate that a nucleoplasm-localized G679R NSUN2 mutant, linked to intellectual disability, diminishes NSUN2-mediated tRNA m5C in human cell lines and Drosophila. Our findings indicate that inability of G679R-NSUN2 to install m5C is primarily attributed to its reduced binding to tRNA rather than its nucleoplasmic localization. Conversely, an NSUN2 variant lacking an internal intrinsically disordered region (ΔIDR-NSUN2) can install ∼80% m5C within the nucleoplasm. Furthermore, we show that tRNA m5C levels are positively correlated to cognitive performance in Drosophila, where expressing G679R-NSUN2 leads to the most severe social behavioral deficits while expressing ΔIDR-NSUN2 results in less pronounced deficits. This work illuminates the molecular mechanism underlying G679R disease mutation in cognitive function and offers valuable insights into the significance of the cellular localization of m5C installation on tRNA for neuronal function.

Indexed as

5-MethylcytosineCognitionMethyltransferasesRNA, TransferAnimalsCell NucleusDrosophilaDrosophila melanogasterDrosophila ProteinsHEK293 CellsHumansIntellectual DisabilityMutation5-MethylcytosineDrosophila ProteinsMethyltransferasesNSUN2 protein, humanRNA, Transfer

Identifiers

PMID39673800
PMCPMC11754655

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Registered trials

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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.