5IBS

Structure of E76Q, a Cancer-Associated Mutation of the Oncogenic Phosphatase SHP2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.32 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural and Functional Consequences of Three Cancer-Associated Mutations of the Oncogenic Phosphatase SHP2.

LaRochelle, J.R.Fodor, M.Xu, X.Durzynska, I.Fan, L.Stams, T.Chan, H.M.LaMarche, M.J.Chopra, R.Wang, P.Fortin, P.D.Acker, M.G.Blacklow, S.C.

(2016) Biochemistry 55: 2269-2277

  • DOI: https://doi.org/10.1021/acs.biochem.5b01287
  • Primary Citation of Related Structures:  
    5I6V, 5IBM, 5IBS

  • PubMed Abstract: 

    The proto-oncogene PTPN11 encodes a cytoplasmic protein tyrosine phosphatase, SHP2, which is required for normal development and sustained activation of the Ras-MAPK signaling pathway. Germline mutations in SHP2 cause developmental disorders, and somatic mutations have been identified in childhood and adult cancers and drive leukemia in mice. Despite our knowledge of the PTPN11 variations associated with pathology, the structural and functional consequences of many disease-associated mutants remain poorly understood. Here, we combine X-ray crystallography, small-angle X-ray scattering, and biochemistry to elucidate structural and mechanistic features of three cancer-associated SHP2 variants harboring single point mutations within the N-SH2:PTP interdomain autoinhibitory interface. Our findings directly compare the impact of each mutation on autoinhibition of the phosphatase and advance the development of structure-guided and mutation-specific SHP2 therapies.


  • Organizational Affiliation

    Department of Biological Chemistry & Molecular Pharmacology, Harvard Medical School , Boston, Massachusetts 02115, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tyrosine-protein phosphatase non-receptor type 11
A, B
526Homo sapiensMutation(s): 1 
Gene Names: PTPN11PTP2CSHPTP2
EC: 3.1.3.48
UniProt & NIH Common Fund Data Resources
Find proteins for Q06124 (Homo sapiens)
Explore Q06124 
Go to UniProtKB:  Q06124
PHAROS:  Q06124
GTEx:  ENSG00000179295 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ06124
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.32 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.46α = 90
b = 214.77β = 95.59
c = 55.38γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
SCALAdata scaling
BUSTERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-04-13
    Type: Initial release
  • Version 1.1: 2023-09-27
    Changes: Data collection, Database references, Derived calculations, Refinement description