5FWL

Atomic cryoEM structure of Hsp90-Cdc37-Cdk4 complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Atomic Structure of Hsp90-Cdc37-Cdk4 Reveals that Hsp90 Traps and Stabilizes an Unfolded Kinase.

Verba, K.A.Wang, R.Y.Arakawa, A.Liu, Y.Shirouzu, M.Yokoyama, S.Agard, D.A.

(2016) Science 352: 1542

  • DOI: https://doi.org/10.1126/science.aaf5023
  • Primary Citation of Related Structures:  
    5FWK, 5FWL, 5FWM, 5FWP

  • PubMed Abstract: 

    The Hsp90 molecular chaperone and its Cdc37 cochaperone help stabilize and activate more than half of the human kinome. However, both the mechanism by which these chaperones assist their "client" kinases and the reason why some kinases are addicted to Hsp90 while closely related family members are independent are unknown. Our structural understanding of these interactions is lacking, as no full-length structures of human Hsp90, Cdc37, or either of these proteins with a kinase have been elucidated. Here we report a 3.9 angstrom cryo-electron microscopy structure of the Hsp90-Cdc37-Cdk4 kinase complex. Surprisingly, the two lobes of Cdk4 are completely separated with the β4-β5 sheet unfolded. Cdc37 mimics part of the kinase N lobe, stabilizing an open kinase conformation by wedging itself between the two lobes. Finally, Hsp90 clamps around the unfolded kinase β5 strand and interacts with exposed N- and C-lobe interfaces, protecting the kinase in a trapped unfolded state. On the basis of this structure and an extensive amount of previously collected data, we propose unifying conceptual and mechanistic models of chaperone-kinase interactions.


  • Organizational Affiliation

    Howard Hughes Medical Institute (HHMI) and the Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA 94158, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
HEAT SHOCK PROTEIN HSP 90 BETA
A, B
727Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P08238 (Homo sapiens)
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Go to UniProtKB:  P08238
GTEx:  ENSG00000096384 
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UniProt GroupP08238
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
HSP90 CO-CHAPERONE CDC37C [auth E]378Homo sapiensMutation(s): 0 
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Find proteins for Q16543 (Homo sapiens)
Explore Q16543 
Go to UniProtKB:  Q16543
GTEx:  ENSG00000105401 
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UniProt GroupQ16543
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
CYCLIN-DEPENDENT KINASE 4D [auth K]310Homo sapiensMutation(s): 0 
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Find proteins for P11802 (Homo sapiens)
Explore P11802 
Go to UniProtKB:  P11802
GTEx:  ENSG00000135446 
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UniProt GroupP11802
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-07-06
    Type: Initial release
  • Version 1.1: 2017-04-19
    Changes: Other
  • Version 1.2: 2017-08-02
    Changes: Data collection
  • Version 2.0: 2019-10-23
    Changes: Atomic model, Data collection, Derived calculations