Cited by 524Alzheimer's disease research and treatmentsMicrotubule and mitosis dynamicsCancer Treatment and Pharmacology

Tau stabilizes microtubules by binding at the interface between tubulin heterodimers

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Kadavath, Harindranath, Hofele, Romina V., Biernat, Jacek, Kumar, Satish, Tepper, Katharina, Urlaub, Henning, Mandelkow, Eckhard, Zweckstetter, Markus·2015·Proceedings of the National Academy of Sciences

Abstract

Significance: Tau is an important microtubule-associated protein. Although the structure–function relationship of Tau has been intensively studied for many years primarily by molecular biology and biochemical approaches, little is still known about the molecular mechanisms by which Tau interacts with microtubules and promotes microtubule assembly. Here, we provide detailed insight into the Tau–microtubule association by using NMR spectroscopy and mass spectrometry. We show that Tau binds to microtubules by using small groups of residues, which are important for pathological aggregation of Tau. We further show that Tau stabilizes a straight protofilament conformation by binding to a hydrophobic pocket in between tubulin heterodimers. Our work is thus relevant to normal Tau action development and in Tau-related neurodegenerative diseases.

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Crossref · 10.1073/pnas.1504081112

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  • Tau residues 168-185, 224-237, 245-253, 269-284, 300-313, and 375-398 bind to microtubules at the interface between tubulin heterodimers.

    “We previously showed that the Tau residues 168–185, 224–237, 245–253, 269–284, 300–313, and 375–398 bind to microtubules at the interface between tubulin heterodimers (Fig. 5b)72.”

    From Multivalent cross-linking of actin filaments and microtubules through the microtubule-associated protein Tau (2017) · cites this paper as [72]

    The Significance passage (p. 2) identifies residues 224–237 and 245–253 as microtubule-binding motifs, and the paper states that Tau binds at the interface between tubulin heterodimers (p. 1). But it gives the other measured motifs as 275–284 and 300–317, not 269–284 and 300–313. The available passages do not identify 168–185 or 375–398 as binding motifs at that precise interface. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Tau is a microtubule-associated protein that stabilizes microtubules by interacting with tubulin heterodimers, supporting axonal structure and neuronal morphology.

    “The microtubule-associated protein tau (MAPT) was first identified as a key regulator of microtubule stability and assembly [1]. Tau stabilizes microtubules by interacting with tubulin heterodimers, thereby supporting axonal structure and maintaining neuronal morphology [2–4].”
  • Tau promotes the polymerization and stability of microtubules.

    “As a microtubule binding component, tau promotes the polymerization and stability of microtubules [119–121].”

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Research works printed but not linked: 2

  1. [48]Mayer M, Meyer B (1999) Characterization of ligand binding by saturation transfer difference NMR spectroscopy. Angew Chem Int Ed 38(12):1784 -1788.
  2. [54]Löwe J, Li H, Downing KH, Nogales E (2001) Refined structure of alpha beta-tubulin at 3.5 A resolution. J Mol Biol 313(5):1045 -1057.

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Authors
Kadavath, H., Hofele, R. V., Biernat, J., Kumar, S., Tepper, K., Urlaub, H., Mandelkow, E., & Zweckstetter, M.
Affiliations
  • Max Planck Society (DE)
  • German Center for Neurodegenerative Diseases (DE)
  • Deutsches Zentrum für Neurodegenerative Erkrankungen, Ludwig-Erhard-Allee 2, Bonn, Germany;
Venue
Proceedings of the National Academy of Sciences
Published
2015-06
Volume
112
Issue
24
Pages
7501-7506
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1568323816
Cited by
524
References
57
Citations by year
2026: 29 · 2025: 48 · 2024: 50 · 2023: 61 · 2022: 53 · 2021: 55 · 2020: 49 · 2019: 61 · 2018: 53 · 2017: 29 · 2016: 26 · 2015: 10
FWCI
28.98
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DZNE Pub (submittedVersion)
  • GRO (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
Deutsche Forschungsgemeinschaft (ZW 71/8-1)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Health Sciences › Medicine › Oncology › Cancer Treatment and Pharmacology
Keywords
tau protein, microtubule stabilization, tubulin heterodimers, microtubule-binding site, microtubule-associated proteins, tau aggregation, Alzheimer's disease, protein flexibility, microtubule assembly, cell morphology
MeSH terms
Amino Acid Sequence, Animals, Binding Sites, Binding, Competitive, Humans, Microtubules, Models, Molecular, Protein Binding, Swine, Tubulin, Vinblastine, tau Proteins, Nuclear Magnetic Resonance, Biomolecular, Protein Isoforms, Protein Structure, Quaternary, Protein Interaction Domains and Motifs, Protein Multimerization, Biophysical Phenomena

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