7Z38

Structure of the RAF1-HSP90-CDC37 complex (RHC-I)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure of the RAF1-HSP90-CDC37 complex reveals the basis of RAF1 regulation.

Garcia-Alonso, S.Mesa, P.Ovejero, L.P.Aizpurua, G.Lechuga, C.G.Zarzuela, E.Santiveri, C.M.Sanclemente, M.Munoz, J.Musteanu, M.Campos-Olivas, R.Martinez-Torrecuadrada, J.Barbacid, M.Montoya, G.

(2022) Mol Cell 82: 3438-3452.e8

  • DOI: https://doi.org/10.1016/j.molcel.2022.08.012
  • Primary Citation of Related Structures:  
    7Z37, 7Z38

  • PubMed Abstract: 

    RAF kinases are RAS-activated enzymes that initiate signaling through the MAPK cascade to control cellular proliferation, differentiation, and survival. Here, we describe the structure of the full-length RAF1 protein in complex with HSP90 and CDC37 obtained by cryoelectron microscopy. The reconstruction reveals a RAF1 kinase with an unfolded N-lobe separated from its C-lobe. The hydrophobic core of the N-lobe is trapped in the HSP90 dimer, while CDC37 wraps around the chaperone and interacts with the N- and C-lobes of the kinase. The structure indicates how CDC37 can discriminate between the different members of the RAF family. Our structural analysis also reveals that the folded RAF1 assembles with 14-3-3 dimers, suggesting that after folding RAF1 follows a similar activation as B-RAF. Finally, disruption of the interaction between CDC37 and the DFG segment of RAF1 unveils potential vulnerabilities in attempting the pharmacological degradation of RAF1 for therapeutic purposes.


  • Organizational Affiliation

    Experimental Oncology Group, Molecular Oncology Programme, Centro Nacional de Investigaciones Oncológicas (CNIO), Madrid 28029, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Heat shock protein HSP 90-beta
A, B
732Homo sapiensMutation(s): 0 
Gene Names: HSP90AB1HSP90BHSPC2HSPCB
UniProt & NIH Common Fund Data Resources
Find proteins for P08238 (Homo sapiens)
Explore P08238 
Go to UniProtKB:  P08238
PHAROS:  P08238
GTEx:  ENSG00000096384 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08238
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
RAF proto-oncogene serine/threonine-protein kinase659Homo sapiensMutation(s): 0 
Gene Names: RAF1RAF
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for P04049 (Homo sapiens)
Explore P04049 
Go to UniProtKB:  P04049
PHAROS:  P04049
GTEx:  ENSG00000132155 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04049
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Hsp90 co-chaperone Cdc37394Homo sapiensMutation(s): 0 
Gene Names: CDC37CDC37A
UniProt & NIH Common Fund Data Resources
Find proteins for Q16543 (Homo sapiens)
Explore Q16543 
Go to UniProtKB:  Q16543
PHAROS:  Q16543
GTEx:  ENSG00000105401 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ16543
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX
MODEL REFINEMENTISOLDE
RECONSTRUCTIONRELION3.1.3

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Novo Nordisk FoundationDenmarkNNF14CC0001
Novo Nordisk FoundationDenmarkNNF0024386
Novo Nordisk FoundationDenmarkNNF17SA0030214
Novo Nordisk FoundationDenmarkNNF18OC0055061

Revision History  (Full details and data files)

  • Version 1.0: 2022-09-14
    Type: Initial release
  • Version 1.1: 2022-09-28
    Changes: Database references