2ITO

Crystal structure of EGFR kinase domain G719S mutation in complex with Iressa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structures of Lung Cancer-Derived Egfr Mutants and Inhibitor Complexes: Mechanism of Activation and Insights Into Differential Inhibitor Sensitivity

Yun, C.-H.Boggon, T.J.Li, Y.Woo, S.Greulich, H.Meyerson, M.Eck, M.J.

(2007) Cancer Cell 11: 217

  • DOI: 10.1016/j.ccr.2006.12.017
  • Primary Citation of Related Structures:  
    2ITT, 2ITQ, 2ITP, 2ITO, 2ITN, 2ITZ, 2ITY, 2ITX, 2ITW, 2ITV

  • PubMed Abstract: 
  • Mutations in the EGFR kinase are a cause of non-small-cell lung cancer. To understand their mechanism of activation and effects on drug binding, we studied the kinetics of the L858R and G719S mutants and determined their crystal structures with inhib ...

    Mutations in the EGFR kinase are a cause of non-small-cell lung cancer. To understand their mechanism of activation and effects on drug binding, we studied the kinetics of the L858R and G719S mutants and determined their crystal structures with inhibitors including gefitinib, AEE788, and a staurosporine. We find that the mutations activate the kinase by disrupting autoinhibitory interactions, and that they accelerate catalysis as much as 50-fold in vitro. Structures of inhibitors in complex with both wild-type and mutant kinases reveal similar binding modes for gefitinib and AEE788, but a marked rotation of the staurosporine in the G719S mutant. Strikingly, direct binding measurements show that gefitinib binds 20-fold more tightly to the L858R mutant than to the wild-type enzyme.


    Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, MA 02115, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
EPIDERMAL GROWTH FACTOR RECEPTORA327Homo sapiensMutation(s): 1 
Gene Names: EGFRERBBERBB1HER1
EC: 2.7.10.1
Find proteins for P00533 (Homo sapiens)
Explore P00533 
Go to UniProtKB:  P00533
NIH Common Fund Data Resources
PHAROS  P00533
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IRE
Query on IRE

Download CCD File 
A
Gefitinib
C22 H24 Cl F N4 O3
XGALLCVXEZPNRQ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
IREKd :  123.5999984741211   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.197 
  • Space Group: I 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 142.929α = 90
b = 142.929β = 90
c = 142.929γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-04-03
    Type: Initial release
  • Version 1.1: 2014-10-15
    Changes: Database references, Derived calculations, Non-polymer description, Other, Source and taxonomy, Structure summary, Version format compliance