Cited by 476Heat shock proteins researchFungal and yeast genetics researchUbiquitin and proteasome pathways

Diverse Cellular Functions of the Hsp90 Molecular Chaperone Uncovered Using Systems Approaches

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McClellan, Amie J., Xia, Yu, Deutschbauer, Adam M., Davis, Ron W., Gerstein, Mark, Frydman, Judith·2007·Cell

Abstract

A comprehensive understanding of the cellular functions of the Hsp90 molecular chaperone has remained elusive. Although Hsp90 is essential, highly abundant under normal conditions, and further induced by environmental stress, only a limited number of Hsp90 "clients" have been identified. To define Hsp90 function, a panel of genome-wide chemical-genetic screens in Saccharomyces cerevisiae were combined with bioinformatic analyses. This approach identified several unanticipated functions of Hsp90 under normal conditions and in response to stress. Under normal growth conditions, Hsp90 plays a major role in various aspects of the secretory pathway and cellular transport; during environmental stress, Hsp90 is required for the cell cycle, meiosis, and cytokinesis. Importantly, biochemical and cell biological analyses validated several of these Hsp90-dependent functions, highlighting the potential of our integrated global approach to uncover chaperone functions in the cell.

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Registry

Crossref · 10.1016/j.cell.2007.07.036

Cites

55 of 55 references verified0 citation errors · 0 not checkable

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  • The fungal Hsp90 interactome displays a high degree of plasticity that depends on environmental conditions.

    “The fungal Hsp90 interactome, which includes numerous client proteins such as receptors, protein kinases and transcription factors, displays a surprisingly high degree of plasticity that depends on environmental conditions.”
  • The fungal Hsp90 interactome includes numerous client proteins such as receptors, protein kinases and transcription factors.

    “The fungal Hsp90 interactome, which includes numerous client proteins such as receptors, protein kinases and transcription factors, displays a surprisingly high degree of plasticity that depends on environmental conditions.”
  • Several key cell cycle regulators, including Swe1, Cdc28, Cdc50 and Cdc60, have been identified as Hsp90 interactors in S. cerevisiae.

    “Several key cell cycle regulators have been identified as Hsp90 interactors in S. cerevisiae, including Swe1, Cdc28, Cdc50 and Cdc6061,92,123.”
  • Hsp90 has evolutionarily conserved roles in cell cycle progression.

    “Hsp90 also has evolutionarily conserved roles in cell cycle progression.”
  • Many features of the Hsp90 interactome are highly conserved from yeast to humans despite substantial network rewiring over evolutionary time.

    “Also, many features of the Hsp90 interactome are highly conserved from yeast to humans despite substantial network rewiring over evolutionary time.”

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Authors
McClellan, A. J., Xia, Y., Deutschbauer, A. M., Davis, R. W., Gerstein, M., & Frydman, J.
Affiliations
  • Stanford University (US)
  • Yale University (US)
Corresponding author
Frydman, Judith
Venue
Cell
Publisher
Elsevier BV
Published
2007-10
Volume
131
Issue
1
Pages
121-135
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2132919995
Cited by
474
References
56
Citations by year
2026: 1 · 2025: 6 · 2024: 21 · 2023: 9 · 2022: 20 · 2021: 26 · 2020: 32 · 2019: 33 · 2018: 27 · 2017: 33 · 2016: 23 · 2015: 29 · 2014: 32 · 2013: 31 · 2012: 41
FWCI
9.66
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Jane Coffin Childs Memorial Fund for Medical Research
  • National Institutes of Health
  • National Institute of General Medical Sciences (GM 56433, F32GM064992, GM64992, P50GM062413)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
Keywords
HSP90, molecular chaperones, Saccharomyces cerevisiae, secretory pathway, cell transport, environmental stress response, cell cycle, meiosis, cytokinesis, chaperone activity
MeSH terms
Biological Transport, Cell Cycle, Saccharomyces cerevisiae, Reproducibility of Results, Genome, Fungal, Gene Deletion, HSP90 Heat-Shock Proteins, Computational Biology, Oligonucleotide Array Sequence Analysis, Secretory Vesicles, Saccharomyces cerevisiae Proteins, Gene Regulatory Networks

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