Cited by 168RNA Research and SplicingProtein Structure and DynamicsRNA and protein synthesis mechanisms

Domain Architectures and Characterization of an RNA-binding Protein, TLS

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Iko, Yuko, Kodama, Takashi S., Kasai, Nobuyuki, Oyama, Takuji, Morita, Eugene H., Muto, Takanori, Okumura, Mika, Fujii, Ritsuko +3 more·2004·Journal of Biological Chemistry

Abstract

Translocated in liposarcoma (TLS) is an important protein component of the heterogeneous nuclear ribonucleoprotein complex involved in the splicing of pre-mRNA and the export of fully processed mRNA to the cytoplasm. We examined the domain organization of human TLS by a combined approach using limited proteolysis, matrix-assisted laser desorption ionization time-of-flight mass spectrometry, circular dichroism, inductively coupled plasma atomic emission spectroscopy, and NMR spectroscopy. We found that the RNA recognition motif (RRM) and zinc finger-like domains exclusively form protease-resistant core structures within the isolated TLS protein fragments, while the remaining regions, including the Arg-Gly-Gly repeats, appear to be completely unstructured. Thus, TLS contains the unstructured N-terminal half followed by the RRM and zinc finger-like domains, which are connected to each other by a flexible linker. We also carried out NMR analyses to obtain more detailed insights into the individual RRM and zinc finger-like domains. The 113Cd NMR analysis of the zinc finger-like domain verified that zinc is coordinated with four cysteines in the C4 type scheme. We also investigated the interaction of each domain with an oligo-RNA containing the GGUG sequence, which appears to be critical for the TLS function in splicing. The backbone amide NMR chemical shift perturbation analyses indicated that the zinc finger domain binds GGUG-containing RNA with a dissociation constant of about 1.0 x 10(-5) m, whereas the RRM domain showed no observable interaction with this RNA. This surprising result implies that the zinc finger domain plays a more predominant role in RNA recognition than the RRM domain.

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  • FUS is a widely expressed, predominantly nuclear RNA-binding protein.

    “Another ALS and FTLD gene, FUS156, is a widely expressed, predominantly nuclear RNA-binding protein176,177”

    From The neurogenetics of alternative splicing (2016) · cites this paper as [176]

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  1. Cavanagh, J., Fairbrother, W. J., Palmer, A. G., III, and Skelton, N. J. (1996) Protein NMR, Academic Press, San Diego, CA 24.

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Authors
Iko, Y., Kodama, T. S., Kasai, N., Oyama, T., Morita, E. H., Muto, T., Okumura, M., Fujii, R., Takumi, T., Tate, S.-I., & Morikawa, K.
Affiliations
  • Biomolecular Engineering Research Institute (Japan) (JP)
  • Japan Biological Informatics Consortium (JP)
  • Ehime University (JP)
Corresponding author
Morikawa, Kosuke
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2004-10
Volume
279
Issue
43
Pages
44834-44840
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2097630727
Cited by
168
References
50
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 9 · 2022: 9 · 2021: 8 · 2020: 13 · 2019: 6 · 2018: 8 · 2017: 7 · 2016: 12 · 2015: 7 · 2014: 11 · 2013: 13 · 2012: 14
FWCI
1.30
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Ministry of Education, Culture, Sports, Science and Technology
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
Keywords
TLS, RNA-binding proteins, heterogeneous nuclear ribonucleoproteins, RNA recognition motif, protein domain organization, RNA binding, pre-mRNA splicing, zinc coordination, chemical shift perturbation
MeSH terms
Amino Acid Sequence, Cell Nucleus, Chymotrypsin, Circular Dichroism, Cysteine, Cytoplasm, Glutathione Transferase, Models, Molecular, Molecular Sequence Data, Magnetic Resonance Spectroscopy, Protein Binding, Proteins, RNA, Spectrophotometry, Atomic, Zinc Fingers, Sequence Homology, Amino Acid, Protein Structure, Tertiary, DNA, Complementary, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization, RNA-Binding Protein FUS

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