Cited by 56RNA Research and SplicingRNA regulation and diseaseRNA and protein synthesis mechanisms

The MTR4 helicase recruits nuclear adaptors of the human RNA exosome using distinct arch-interacting motifs

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Lingaraju, Mahesh, Johnsen, Dennis, Schlundt, Andreas, Langer, Lukas M., Basquin, Jérôme, Sattler, Michael, Heick Jensen, Torben, Falk, Sebastian +1 more·2019·Nature Communications

Abstract

The nuclear exosome and its essential co-factor, the RNA helicase MTR4, play crucial roles in several RNA degradation pathways. Besides unwinding RNA substrates for exosome-mediated degradation, MTR4 associates with RNA-binding proteins that function as adaptors in different RNA processing and decay pathways. Here, we identify and characterize the interactions of human MTR4 with a ribosome processing adaptor, NVL, and with ZCCHC8, an adaptor involved in the decay of small nuclear RNAs. We show that the unstructured regions of NVL and ZCCHC8 contain short linear motifs that bind the MTR4 arch domain in a mutually exclusive manner. These short sequences diverged from the arch-interacting motif (AIM) of yeast rRNA processing factors. Our results suggest that nuclear exosome adaptors have evolved canonical and non-canonical AIM sequences to target human MTR4 and demonstrate the versatility and specificity with which the MTR4 arch domain can recruit a repertoire of different RNA-binding proteins.

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  • Catalytic activities of the RNA exosome are mediated by associated 3'−5' exonucleases EXOSC10 and DIS3 or accessory factors such as MTR4, while core components including EXOSC3 provide structural stability and facilitate substrate recognition and/or RNA threading.

    “The catalytic activities of the RNA exosome are mediated by associated 3’−5’ exonucleases EXOSC10 and DIS3 or accessory factors such as the RNA helicase MTR4, while core components including EXOSC3 provide structural stability and facilitate substrate recognition and/or RNA threading through the protein complex core39–43.”

    From EXOSC3 G191 Variants Trigger System-Wide Recalibration of RNA Processing Machinery (2026) · cites this paper as [40]

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Authors
Lingaraju, M., Johnsen, D., Schlundt, A., Langer, L. M., Basquin, J., Sattler, M., Heick Jensen, T., Falk, S., & Conti, E.
Affiliations
  • Max Planck Institute of Biochemistry (DE)
  • Aarhus University (DK)
  • Goethe University Frankfurt (DE)
  • Center for Integrated Protein Science Munich (DE)
  • University of Vienna (AT)
Corresponding author
  • Falk, Sebastian
  • Conti, Elena
Venue
Nature Communications
Published
2019-07-29
Volume
10
Issue
1
Pages
3393-3393
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2964712519
Cited by
55
References
60
Citations by year
2026: 10 · 2025: 3 · 2024: 4 · 2023: 6 · 2022: 17 · 2021: 6 · 2020: 7 · 2019: 2
FWCI
2.73
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DORA PSI (Paul Scherrer Institute) (submittedVersion, cc-by)
  • PuSH - Publication Server of Helmholtz Zentrum München (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • mediaTUM (Technical University of Munich) (submittedVersion, other-oa)
  • Site cant be reached (submittedVersion, cc-by)
  • Publication Server of Goethe University Frankfurt am Main (Goethe University Frankfurt) (submittedVersion, cc-by)
  • Scopus (Elsevier) (submittedVersion, other-oa)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
Funders
Deutsche Forschungsgemeinschaft (SFB646, SFB1035, GRK1721, FOR1680, EXC114)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
Keywords
RNA-binding proteins, RNA degradation, short linear motifs, unstructured regions, protein-protein interaction, RNA helicase
MeSH terms
Protein Domains, ATPases Associated with Diverse Cellular Activities, Amino Acid Sequence, Binding Sites, Carrier Proteins, Cell Nucleus, HeLa Cells, Humans, Mutation, Nuclear Proteins, Protein Binding, RNA-Binding Proteins, Sequence Homology, Amino Acid, Crystallography, X-Ray, RNA Helicases, Exosomes

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