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Cited by 620

The DOI matches its Crossref record; 84 of the 84 references it cites were found in a registry or an index.

Aberrant methylation of t RNA s links cellular stress to neuro‐developmental disorders

Open access
Blanco, Sandra, Dietmann, Sabine, Flores, Joana V, Hussain, Shobbir, Kutter, Claudia, Humphreys, Peter, Lukk, Margus, Lombard, Patrick, Treps, Lucas, Popis, Martyna, Kellner, Stefanie, Hölter, Sabine M, Garrett, Lillian, Wurst, Wolfgang, Becker, Lore, Klopstock, Thomas, Fuchs, Helmut, Gailus‐Durner, Valerie, Hrabĕ de Angelis, Martin, Káradóttir, Ragnhildur T, Helm, Mark, Ule, Jernej, Gleeson, Joseph G, Odom, Duncan T, Frye, Michaela·2014·The EMBO Journal

Abstract

Mutations in the cytosine‐5 RNA methyltransferase NSun2 cause microcephaly and other neurological abnormalities in mice and human. How post‐transcriptional methylation contributes to the human disease is currently unknown. By comparing gene expression data with global cytosine‐5 RNA methylomes in patient fibroblasts and NSun2‐deficient mice, we find that loss of cytosine‐5 RNA methylation increases the angiogenin‐mediated endonucleolytic cleavage of transfer RNAs ( tRNA ) leading to an accumulation of 5′ tRNA ‐derived small RNA fragments. Accumulation of 5′ tRNA fragments in the absence of NSun2 reduces protein translation rates and activates stress pathways leading to reduced cell size and increased apoptosis of cortical, hippocampal and striatal neurons. Mechanistically, we demonstrate that angiogenin binds with higher affinity to tRNA s lacking site‐specific NSun2‐mediated methylation and that the presence of 5′ tRNA fragments is sufficient and required to trigger cellular stress responses. Furthermore, the enhanced sensitivity of NSun2‐deficient brains to oxidative stress can be rescued through inhibition of angiogenin during embryogenesis. In conclusion, failure in NSun2‐mediated tRNA methylation contributes to human diseases via stress‐induced RNA cleavage.

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Metadata

Authors
Blanco, S., Dietmann, S., Flores, J. V., Hussain, S., Kutter, C., Humphreys, P., Lukk, M., Lombard, P., Treps, L., Popis, M., Kellner, S., Hölter, S. M., Garrett, L., Wurst, W., Becker, L., Klopstock, T., Fuchs, H., Gailus‐Durner, V., Hrabĕ de Angelis, M., Káradóttir, R. T., Helm, M., Ule, J., Gleeson, J. G., Odom, D. T., & Frye, M.
Venue
The EMBO Journal
Published
2014-07-25
Volume
33
Issue
18
Pages
2020-2039
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2076772609
Cited by
620
References
84
FWCI
10.83
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Aberrant methylation of t RNA s links cellular stress to neuro‐developmental disorders. https://app.cochat.ai/papers/10.15252/embj.201489282
The paper
Blanco, S., Dietmann, S., Flores, J. V., Hussain, S., Kutter, C., Humphreys, P., Lukk, M., Lombard, P., Treps, L., Popis, M., Kellner, S., Hölter, S. M., Garrett, L., Wurst, W., Becker, L., Klopstock, T., Fuchs, H., Gailus‐Durner, V., Hrabĕ de Angelis, M., . . . Frye, M. (2014). Aberrant methylation of t RNA s links cellular stress to neuro‐developmental disorders. The EMBO Journal. https://doi.org/10.15252/embj.201489282

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.