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 

wwPDB Validation 3D Report Full Report


This is version 1.0 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: 10.1021/acs.biochem.5b01287
  • Primary Citation of Related Structures:  

  • 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 som ...

    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.,Department of Cancer Biology, Dana-Farber Cancer Institute , Boston, Massachusetts 02215, United States.,Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research , Frederick, Maryland 21702, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein phosphatase non-receptor type 11
A, B
526Homo sapiensMutation(s): 1 
Gene Names: PTPN11 (PTP2C, SHPTP2)
EC: 3.1.3.48
Find proteins for Q06124 (Homo sapiens)
Go to Gene View: PTPN11
Go to UniProtKB:  Q06124
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.32 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.186 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 45.460α = 90.00
b = 214.770β = 95.59
c = 55.380γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
BUSTERphasing
SCALAdata scaling
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-04-13
    Type: Initial release