1XKK

EGFR kinase domain complexed with a quinazoline inhibitor- GW572016


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A unique structure for epidermal growth factor receptor bound to GW572016 (Lapatinib): relationships among protein conformation, inhibitor off-rate, and receptor activity in tumor cells.

Wood, E.R.Truesdale, A.T.McDonald, O.B.Yuan, D.Hassell, A.Dickerson, S.H.Ellis, B.Pennisi, C.Horne, E.Lackey, K.Alligood, K.J.Rusnak, D.W.Gilmer, T.M.Shewchuk, L.

(2004) Cancer Res. 64: 6652-6659

  • DOI: 10.1158/0008-5472.CAN-04-1168

  • PubMed Abstract: 
  • GW572016 (Lapatinib) is a tyrosine kinase inhibitor in clinical development for cancer that is a potent dual inhibitor of epidermal growth factor receptor (EGFR, ErbB-1) and ErbB-2. We determined the crystal structure of EGFR bound to GW572016. The c ...

    GW572016 (Lapatinib) is a tyrosine kinase inhibitor in clinical development for cancer that is a potent dual inhibitor of epidermal growth factor receptor (EGFR, ErbB-1) and ErbB-2. We determined the crystal structure of EGFR bound to GW572016. The compound is bound to an inactive-like conformation of EGFR that is very different from the active-like structure bound by the selective EGFR inhibitor OSI-774 (Tarceva) described previously. Surprisingly, we found that GW572016 has a very slow off-rate from the purified intracellular domains of EGFR and ErbB-2 compared with OSI-774 and another EGFR selective inhibitor, ZD-1839 (Iressa). Treatment of tumor cells with these inhibitors results in down-regulation of receptor tyrosine phosphorylation. We evaluated the duration of the drug effect after washing away free compound and found that the rate of recovery of receptor phosphorylation in the tumor cells reflected the inhibitor off-rate from the purified intracellular domain. The slow off-rate of GW572016 correlates with a prolonged down-regulation of receptor tyrosine phosphorylation in tumor cells. The differences in the off-rates of these drugs and the ability of GW572016 to inhibit ErbB-2 can be explained by the enzyme-inhibitor structures.


    Organizational Affiliation

    Department of Computational, Analytical and Structural Sciences, GlaxoSmithKline, Inc., Research Triangle Park, North Carolina 27709, USA. ew39216@gsk.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Epidermal growth factor receptor
A
352Homo sapiensMutation(s): 0 
Gene Names: EGFR (ERBB, ERBB1, HER1)
EC: 2.7.10.1
Find proteins for P00533 (Homo sapiens)
Go to Gene View: EGFR
Go to UniProtKB:  P00533
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
FMM
Query on FMM

Download SDF File 
Download CCD File 
A
N-{3-CHLORO-4-[(3-FLUOROBENZYL)OXY]PHENYL}-6-[5-({[2-(METHYLSULFONYL)ETHYL]AMINO}METHYL)-2-FURYL]-4-QUINAZOLINAMINE
C29 H26 Cl F N4 O4 S
BCFGMOOMADDAQU-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
FMMIC50: 2.9 - 433 nM (100) BINDINGDB
FMMKd: 0.9 - 8600 nM (100) BINDINGDB
FMMKi: 3 nM BINDINGMOAD
FMMKi: 3 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 45.653α = 90.00
b = 67.144β = 90.00
c = 102.880γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
CNSphasing
CNSrefinement
SCALEPACKdata scaling
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-12-07
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance