5UGX

Crystal Structure of the Tyrosine Kinase Domain of FGF Receptor 2 Harboring a E565A/D650V double Gain-of-Function Mutation

  • Classification: TRANSFERASE
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli
  • Mutation(s): Yes 

  • Deposited: 2017-01-10 Released: 2017-02-22 
  • Deposition Author(s): Mohammadi, M., Chen, H.
  • Funding Organization(s): National Institutes of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.220 

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Literature

Elucidation of a four-site allosteric network in fibroblast growth factor receptor tyrosine kinases.

Chen, H., Marsiglia, W.M., Cho, M.K., Huang, Z., Deng, J., Blais, S.P., Gai, W., Bhattacharya, S., Neubert, T.A., Traaseth, N.J., Mohammadi, M.

(2017) Elife 6

  • DOI: 10.7554/eLife.21137
  • Primary Citation of Related Structures:  
    5UGL, 5UGX, 5UHN, 5UI0

  • PubMed Abstract: 

    • Receptor tyrosine kinase (RTK) signaling is tightly regulated by protein allostery within the intracellular tyrosine kinase domains. Yet the molecular determinants of allosteric connectivity in tyrosine kinase domain are incompletely understood. By means of structural (X-ray and NMR) and functional characterization of pathogenic gain-of-function mutations affecting the FGF receptor (FGFR) tyrosine kinase domain, we elucidated a long-distance allosteric network composed of four interconnected sites termed the 'molecular brake', 'DFG latch', 'A-loop plug', and 'αC tether' ...

    Receptor tyrosine kinase (RTK) signaling is tightly regulated by protein allostery within the intracellular tyrosine kinase domains. Yet the molecular determinants of allosteric connectivity in tyrosine kinase domain are incompletely understood. By means of structural (X-ray and NMR) and functional characterization of pathogenic gain-of-function mutations affecting the FGF receptor (FGFR) tyrosine kinase domain, we elucidated a long-distance allosteric network composed of four interconnected sites termed the 'molecular brake', 'DFG latch', 'A-loop plug', and 'αC tether'. The first three sites repress the kinase from adopting an active conformation, whereas the αC tether promotes the active conformation. The skewed design of this four-site allosteric network imposes tight autoinhibition and accounts for the incomplete mimicry of the activated conformation by pathogenic mutations targeting a single site. Based on the structural similarity shared among RTKs, we propose that this allosteric model for FGFR kinases is applicable to other RTKs.

    Organizational Affiliation: 

    Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, United States.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Fibroblast growth factor receptor 2B [auth A], A [auth B]324Homo sapiensMutation(s): 2 
Gene Names: FGFR2, BEK, KGFR, KSAM
EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for P21802 (Homo sapiens)
Explore P21802 
Go to UniProtKB:  P21802
PHAROS:  P21802
GTEx:  ENSG00000066468
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.220 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.973α = 90
b = 77.86β = 90
c = 115.809γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR)United StatesDE13686

Revision History  (Full details and data files)

  • Version 1.0: 2017-02-22
    Type: Initial release
  • Version 1.1: 2017-09-27
    Changes: Author supporting evidence
  • Version 1.2: 2019-12-11
    Changes: Author supporting evidence