Cited by 321Heat shock proteins researchProtein Structure and DynamicsAlzheimer's disease research and treatments

Hsp90-Tau complex reveals molecular basis for specificity in chaperone action

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Karagöz, G. Elif, Duarte, Afonso M.S., Akoury, Elias, Ippel, Hans, Biernat, Jacek, Morán Luengo, Tania, Radli, Martina, Didenko, Tatiana +8 more·2014·Cell

Abstract

Protein folding in the cell relies on the orchestrated action of conserved families of molecular chaperones, the Hsp70 and Hsp90 systems. Hsp70 acts early and Hsp90 late in the folding path, yet the molecular basis of this timing is enigmatic, mainly because the substrate specificity of Hsp90 is poorly understood. Here, we obtained a structural model of Hsp90 in complex with its natural disease-associated substrate, the intrinsically disordered Tau protein. Hsp90 binds to a broad region in Tau that includes the aggregation-prone repeats. Complementarily, a 106-Å-long substrate-binding interface in Hsp90 enables many low-affinity contacts. This allows recognition of scattered hydrophobic residues in late folding intermediates that remain after early burial of the Hsp70 sites. Our model resolves the paradox of how Hsp90 specifically selects for late folding intermediates but also for some intrinsically disordered proteins-through the eyes of Hsp90 they look the same.

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Crossref · 10.1016/j.cell.2014.01.037

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  • NMR shows Hsp90 interacts with tau only transiently in the apo state and serves as a scaffold when in complex with FKBP51.

    “By NMR, Hsp90 is identified to interact with tau transiently in the apo state and function as a scaffold in complex with FKBP51”

    From The structure of an Hsp90-immunophilin complex reveals cochaperone recognition of the client maturation state (2021) · cites this paper as Karagoz et al., 2014

    The Results section on Hsp90 recognition of Tau reports NMR evidence of binding on an intermediate-exchange timescale, and the affinity Results section reports binding in the nucleotide-free apo state. The paper does not establish that binding occurs only in the apo state—it reports similar affinity in the ATP state—and the passages on co-chaperones do not identify FKBP51 or show Hsp90 acting as its scaffold. Page numbers are unavailable in our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • In the absence of nucleotides, all clients show similar affinities in the low micromolar range for Hsp90.

    “In the absence of nucleotides, all clients show similar affinities in the low micromolar range for Hsp90 (Table 1), consistent with previous studies (16, 20, 48).”

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Authors
Karagöz, G. E., Duarte, A. M. S., Akoury, E., Ippel, H., Biernat, J., Morán Luengo, T., Radli, M., Didenko, T., Nordhues, B. A., Veprintsev, D. B., Dickey, C. A., Mandelkow, E., Zweckstetter, M., Boelens, R., Madl, T., & Rüdiger, S. G. D.
Affiliations
  • Howard Hughes Medical Institute (US)
  • Utrecht University (NL)
  • Max Planck Institute for Biophysical Chemistry (DE)
  • German Center for Neurodegenerative Diseases (DE)
  • University of South Florida (US)
  • Paul Scherrer Institute (CH)
  • University of Graz (AT)
Corresponding author
  • Madl, Tobias
  • Rüdiger, Stefan G.D.
Venue
Cell
Publisher
Elsevier BV
Published
2014-02
Volume
156
Issue
5
Pages
963-974
ISSN
0092-8674 (ISSN-L)
OpenAlex
W1993050837
Cited by
318
References
68
Citations by year
2026: 13 · 2025: 21 · 2024: 22 · 2023: 31 · 2022: 27 · 2021: 19 · 2020: 27 · 2019: 33 · 2018: 32 · 2017: 31 · 2016: 26 · 2015: 26 · 2014: 10
FWCI
12.70
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Research Publications (Maastricht University) (submittedVersion, other-oa)
  • DORA PSI (Paul Scherrer Institute) (submittedVersion)
  • Utrecht University Repository (Utrecht University) (submittedVersion)
  • Max Planck Digital Library (submittedVersion, other-oa)
  • Max Planck Digital Library (submittedVersion)
  • Repository@Nottingham (University of Nottingham) (submittedVersion, cc-by)
  • Site cant be reached (submittedVersion)
  • DZNE Pub (submittedVersion)
  • GRO (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • European Commission (261863)
  • National Institute of Neurological Disorders and Stroke (R01NS073899, NS073899)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
HSP90, tau protein, molecular chaperones, protein folding, substrate specificity, intrinsically disordered proteins, HSP70, folding intermediates, hydrophobic residues
MeSH terms
Alzheimer Disease, Amino Acid Sequence, Humans, Models, Molecular, Molecular Sequence Data, X-Ray Diffraction, tau Proteins, Protein Folding, HSP90 Heat-Shock Proteins, Scattering, Small Angle

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