Cited by 90Protein Structure and DynamicsRNA Research and SplicingReceptor Mechanisms and Signaling

Intrinsically Disordered Proteins Link Alternative Splicing and Post-translational Modifications to Complex Cell Signaling and Regulation

Zhou, Jianhong, Zhao, Suwen, Dunker, A. Keith·2018·Journal of Molecular Biology

Abstract

Intrinsically disordered proteins and regions (IDPs and IDRs) lack well-defined tertiary structures, yet carry out various important cellular functions, especially those associated with cell signaling and regulation. In eukaryotes, IDPs and IDRs contain the preferred loci for both alternative splicing (AS) and many post-translational modifications (PTMs). Furthermore, AS and/or PTMs at these loci generally alter the signaling outcomes associated with these IDPs or IDRs, where the functional cooperation of these three features is named the IDP-AS-PTM toolkit. However, the prevalence of such functional modulations remains unknown. Also, the signal-altering mechanisms by which AS, and PTMs modulate function and the extent to which AS and PTMs collaborate in their signaling modulations have not been well defined for particular protein examples. Here we focus on three important signaling and regulatory IDR-containing protein families in humans, namely, G protein-coupled receptors (GPCRs), which are transmembrane proteins; the nuclear factors of activated T cells (NFATs), which are transcription factors; and the Src family kinases (SFKs), which are signaling enzymes. The goals here are to determine how AS and PTMs individually alter the outcomes of the signaling carried out by the various IDRs and to determine whether AS and PTMs work together to bring about differential cellular responses. We also present data indicating that a wide range of other signaling IDPs or IDRs undergo both AS- and PTM-based modifications, suggesting that they, too, likely take advantage of signal outcome modulations that result from collaboration between these two events. Hence, we propose that the widespread cooperation of IDPs, AS and/or PTMs provides an IDP-AS-PTM toolkit and substantially contributes to the vast complexity of eukaryotic cell signaling systems.

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Crossref · 10.1016/j.jmb.2018.03.028

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159 of 159 references verified0 citation errors · 0 not checkable

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  • The combined use of intrinsic disorder, alternative splicing and PTM widely enables the context-dependent orchestration of signaling in developmental biology and other complex processes.

    “The combined use of intrinsic disorder, alternative splicing and PTM widely enables the context-dependent orchestration of signaling in developmental biology and other complex processes [38, 39].”
  • The signaling functions carried out by GPCRs, NFATs, and SFKs are all modulated by the collaboration of PTMs and alternative splicing that map to the same IDRs.

    “Indeed, the signaling functions carried out by G protein-coupled receptors (GPCRs), which are transmembrane proteins; the nuclear factors of activated T cells (NFATs), which are transcription factors; and the Src family kinases (SFKs), which are signaling enzymes, are all modulated by the collaboration of PTMs and alternative splicing that map to the same IDRs [39].”
  • PTEN appears to take advantage of the IDP-AS-PTM Toolkit.

    “Again, this protein appears to take advantage of the previously described IDP-AS-PTM Toolkit [39].”
  • Alternative splicing and PTMs localized in intrinsically disordered regions direct differential CXCR4 signaling.

    “Alternative splicing and PTMs, localized in intrinsically disordered regions, direct differential CXCR4 signaling.”

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Authors
Zhou, J., Zhao, S., & Dunker, A. K.
Affiliations
  • ShanghaiTech University (CN)
  • Indiana University Indianapolis (US)
Corresponding author
  • Zhao, Suwen
  • Dunker, A. Keith
Venue
Journal of Molecular Biology
Publisher
Elsevier BV
Published
2018-08
Volume
430
Issue
16
Pages
2342-2359
ISSN
0022-2836 (ISSN-L)
OpenAlex
W2796408051
Cited by
90
References
159
Citations by year
2026: 3 · 2025: 6 · 2024: 12 · 2023: 13 · 2022: 15 · 2021: 8 · 2020: 10 · 2019: 19 · 2018: 4
FWCI
3.65
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Molecular Biology (publishedVersion)
  • PubMed (publishedVersion)
  • IUScholarWorks (Indiana University) (submittedVersion)
  • Author eBooks
Funders
  • ShanghaiTech University
  • Science and Technology Commission of Shanghai Municipality (16ZR1448500)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
intrinsically disordered proteins, intrinsically disordered regions, alternative splicing, post-translational modification, signal transduction, G protein-coupled receptors, NFAT transcription factors, Src family kinases, protein structure-function relationship
MeSH terms
Biochemical Phenomena, Humans, Protein Binding, Protein Conformation, Protein Processing, Post-Translational, Signal Transduction, Alternative Splicing, src-Family Kinases, Receptors, G-Protein-Coupled, NFATC Transcription Factors, Intrinsically Disordered Proteins

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