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Oxidation and alkylation stresses activate ribosome-quality control

Author

Listed:
  • Liewei L. Yan

    (Washington University in St. Louis)

  • Carrie L. Simms

    (Washington University in St. Louis)

  • Fionn McLoughlin

    (Washington University in St. Louis)

  • Richard D. Vierstra

    (Washington University in St. Louis)

  • Hani S. Zaher

    (Washington University in St. Louis)

Abstract

Oxidation and alkylation of nucleobases are known to disrupt their base-pairing properties within RNA. It is, however, unclear whether organisms have evolved general mechanism(s) to deal with this damage. Here we show that the mRNA-surveillance pathway of no-go decay and the associated ribosome-quality control are activated in response to nucleobase alkylation and oxidation. Our findings reveal that these processes are important for clearing chemically modified mRNA and the resulting aberrant-protein products. In the absence of Xrn1, the level of damaged mRNA significantly increases. Furthermore, deletion of LTN1 results in the accumulation of protein aggregates in the presence of oxidizing and alkylating agents. This accumulation is accompanied by Hel2-dependent regulatory ubiquitylation of ribosomal proteins. Collectively, our data highlight the burden of chemically damaged mRNA on cellular homeostasis and suggest that organisms evolved mechanisms to counter their accumulation.

Suggested Citation

  • Liewei L. Yan & Carrie L. Simms & Fionn McLoughlin & Richard D. Vierstra & Hani S. Zaher, 2019. "Oxidation and alkylation stresses activate ribosome-quality control," Nature Communications, Nature, vol. 10(1), pages 1-15, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13579-3
    DOI: 10.1038/s41467-019-13579-3
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    Cited by:

    1. Joana Silva & Ferhat Alkan & Sofia Ramalho & Goda Snieckute & Stefan Prekovic & Ana Krotenberg Garcia & Santiago Hernández-Pérez & Rob Kammen & Danielle Barnum & Liesbeth Hoekman & Maarten Altelaar & , 2022. "Ribosome impairment regulates intestinal stem cell identity via ZAKɑ activation," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    2. Yoshitaka Matsuo & Takayuki Uchihashi & Toshifumi Inada, 2023. "Decoding of the ubiquitin code for clearance of colliding ribosomes by the RQT complex," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    3. Arun Kumar & Veena Mathew & Peter C. Stirling, 2024. "Dynamics of DNA damage-induced nuclear inclusions are regulated by SUMOylation of Btn2," Nature Communications, Nature, vol. 15(1), pages 1-15, December.

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