7OBG

Crystal structure of 14-3-3 sigma in complex with NPM1 phosphopeptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.144 
  • R-Value Observed: 0.145 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

IFN alpha primes cancer cells for Fusicoccin-induced cell death via 14-3-3 PPI stabilization.

Andlovic, B.Heilmann, G.Ninck, S.Andrei, S.A.Centorrino, F.Higuchi, Y.Kato, N.Brunsveld, L.Arkin, M.Menninger, S.Choidas, A.Wolf, A.Klebl, B.Kaschani, F.Kaiser, M.Eickhoff, J.Ottmann, C.

(2023) Cell Chem Biol 

  • DOI: https://doi.org/10.1016/j.chembiol.2023.04.005
  • Primary Citation of Related Structures:  
    7OB5, 7OB8, 7OBC, 7OBD, 7OBG, 7OBH, 7OBK, 7OBL, 7OBS, 7OBT, 7OBX, 7OBY

  • PubMed Abstract: 

    The natural product family of the fusicoccanes (FCs) has been shown to display anti-cancer activity, especially when combined with established therapeutic agents. FCs stabilize 14-3-3 protein-protein interactions (PPIs). Here, we tested combinations of a small library of FCs with interferon α (IFNα) on different cancer cell lines and report a proteomics approach to identify the specific 14-3-3 PPIs that are induced by IFNα and stabilized by FCs in OVCAR-3 cells. Among the identified 14-3-3 target proteins are THEMIS2, receptor interacting protein kinase 2 (RIPK2), EIF2AK2, and several members of the LDB1 complex. Biophysical and structural biology studies confirm these 14-3-3 PPIs as physical targets of FC stabilization, and transcriptome as well as pathway analyses suggest possible explanations for the observed synergistic effect of IFNα/FC treatment on cancer cells. This study elucidates the polypharmacological effects of FCs in cancer cells and identifies potential targets from the vast interactome of 14-3-3s for therapeutic intervention in oncology.


  • Organizational Affiliation

    The Institute of Scientific and Industrial Research, Osaka University, Osaka, Ibaraki, Japan.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
14-3-3 protein sigma253Homo sapiensMutation(s): 0 
Gene Names: SFNHME1
UniProt & NIH Common Fund Data Resources
Find proteins for P31947 (Homo sapiens)
Explore P31947 
Go to UniProtKB:  P31947
PHAROS:  P31947
GTEx:  ENSG00000175793 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP31947
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
NPM1 phosphopeptide11Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P06748 (Homo sapiens)
Explore P06748 
Go to UniProtKB:  P06748
PHAROS:  P06748
GTEx:  ENSG00000181163 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06748
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.144 
  • R-Value Observed: 0.145 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.65α = 90
b = 112.265β = 90
c = 62.65γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
DIALSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
H2020 Marie Curie Actions of the European CommissionEuropean Union675179

Revision History  (Full details and data files)

  • Version 1.0: 2022-05-04
    Type: Initial release
  • Version 1.1: 2023-06-07
    Changes: Database references
  • Version 1.2: 2024-02-07
    Changes: Data collection, Refinement description