Cited by 879Heat shock proteins researchUbiquitin and proteasome pathwaysMicrotubule and mitosis dynamics

Quantitative Analysis of Hsp90-Client Interactions Reveals Principles of Substrate Recognition

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Taipale, Mikko, Krykbaeva, Irina, Koeva, Martina, Kayatekin, Can, Westover, Kenneth D., Karras, Georgios I., Lindquist, Susan·2012·Cell

Abstract

HSP90 is a molecular chaperone that associates with numerous substrate proteins called clients. It plays many important roles in human biology and medicine, but determinants of client recognition by HSP90 have remained frustratingly elusive. We systematically and quantitatively surveyed most human kinases, transcription factors, and E3 ligases for interaction with HSP90 and its cochaperone CDC37. Unexpectedly, many more kinases than transcription factors bound HSP90. CDC37 interacted with kinases, but not with transcription factors or E3 ligases. HSP90::kinase interactions varied continuously over a 100-fold range and provided a platform to study client protein recognition. In wild-type clients, HSP90 did not bind particular sequence motifs, but rather associated with intrinsically unstable kinases. Stabilization of the kinase in either its active or inactive conformation with diverse small molecules decreased HSP90 association. Our results establish HSP90 client recognition as a combinatorial process: CDC37 provides recognition of the kinase family, whereas thermodynamic parameters determine client binding within the family.

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Crossref · 10.1016/j.cell.2012.06.047

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  • Hsp90 is required for functional maturation of about 10% of the eukaryotic proteome, including signaling proteins such as GR.

    “Hsp90 is required for the functional maturation of ~10% of the eukaryotic proteome, including signaling proteins such as GR, a steroid hormone receptor (SHR)1,3,13.”

    From Structure of Hsp90–p23–GR reveals the Hsp90 client-remodelling mechanism (2022) · cites this paper as [3]

    The Introduction (p. 2) says HSP90 promotes the folding and function of diverse client proteins, including steroid hormone receptors. The discussion of steroid hormone chaperoning (p. 13) describes how HSP90 helps a receptor maintain a ligand-binding conformation. Our copy does not establish that HSP90 is required for functional maturation of approximately 10% of the eukaryotic proteome, or specifically identify GR as an example in that account. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Hsp90 is an essential conserved chaperone that folds and activates many client proteins.

    “Hsp90 is a conserved and essential molecular chaperone responsible for the folding and activation of hundreds of ‘client’ proteins1-3.”
  • Hsp90 clients are enriched in signaling proteins such as steroid hormone receptors, making Hsp90 an important clinical target.

    “Hsp90 ‘clients’ are enriched in signaling proteins, such as steroid hormone receptors (SHRs), making Hsp90 an important clinical target2–4.”
  • Hsp90 plays a crucial role in protein homeostasis by regulating the folding and activity of a set of proteins known as clients.

    “The molecular chaperone Hsp90 plays a crucial role in protein homeostasis by regulating the folding and activity of a set of proteins known as clients (1–3).”
  • Hsp90 promotes the maturation of diverse metastable signal transduction proteins, including kinases, phosphatases, and ubiquitin ligases (Hsp90 clients), which function in many stress response pathways.

    “Hsp90 promotes the maturation of a diverse array of metastable signal transduction proteins, including kinases, phosphatases, and ubiquitin ligases (known as Hsp90 clients) [32]. These function in many stress response pathways.”

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Authors
Taipale, M., Krykbaeva, I., Koeva, M., Kayatekin, C., Westover, K. D., Karras, G. I., & Lindquist, S.
Affiliations
  • Whitehead Institute for Biomedical Research (US)
  • The University of Texas Southwestern Medical Center (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Lindquist, Susan
Venue
Cell
Publisher
Elsevier BV
Published
2012-08
Volume
150
Issue
5
Pages
987-1001
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2096237314
Cited by
879
References
47
Citations by year
2026: 49 · 2025: 59 · 2024: 59 · 2023: 61 · 2022: 55 · 2021: 48 · 2020: 78 · 2019: 55 · 2018: 77 · 2017: 59 · 2016: 70 · 2015: 72 · 2014: 75 · 2013: 53 · 2012: 6
FWCI
26.50
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
  • Elsevier eBooks
Funders
  • Howard Hughes Medical Institute
  • National Human Genome Research Institute (RL1HG004671)
  • National Cancer Institute (RL1CA133834)
  • National Institute of General Medical Sciences (RL1GM084437)
  • National Institute of Dental and Craniofacial Research (UL1DE019585)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
Keywords
HSP90, Hsp90 client proteins, Cdc37, molecular chaperones, substrate recognition, protein-protein interaction, kinases, transcription factors, E3 ubiquitin ligase, small molecule inhibitors, binding thermodynamics
MeSH terms
Amino Acid Sequence, Animals, Humans, Models, Molecular, Molecular Sequence Data, Protein Kinases, Receptors, Steroid, Thermodynamics, Transcription Factors, Sequence Alignment, Cell Cycle Proteins, Chaperonins, HSP90 Heat-Shock Proteins, Proteome, Protein Interaction Mapping, Ubiquitin-Protein Ligases, Luciferases, Renilla, Protein Interaction Domains and Motifs, Protein Stability

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