5HCX

EGFR kinase domain mutant "TMLR" with azabenzimidazole compound 7


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Discovery of a Noncovalent, Mutant-Selective Epidermal Growth Factor Receptor Inhibitor.

Chan, B.K.Hanan, E.J.Bowman, K.K.Bryan, M.C.Burdick, D.Chan, E.Chen, Y.Clausen, S.Dela Vega, T.Dotson, J.Eigenbrot, C.Elliott, R.L.Heald, R.A.Jackson, P.S.Knight, J.D.La, H.Lainchbury, M.D.Malek, S.Purkey, H.E.Schaefer, G.Schmidt, S.Seward, E.M.Sideris, S.Shao, L.Wang, S.Yeap, S.K.Yen, I.Yu, C.Heffron, T.P.

(2016) J.Med.Chem. 59: 9080-9093

  • DOI: 10.1021/acs.jmedchem.6b00995
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Inhibitors targeting the activating mutants of the epidermal growth factor receptor (EGFR) have found success in the treatment of EGFR mutant positive non-small-cell lung cancer. A secondary point mutation (T790M) in the inhibitor binding site has be ...

    Inhibitors targeting the activating mutants of the epidermal growth factor receptor (EGFR) have found success in the treatment of EGFR mutant positive non-small-cell lung cancer. A secondary point mutation (T790M) in the inhibitor binding site has been linked to the acquired resistance against those first generation therapeutics. Herein, we describe the lead optimization of a series of reversible, pan-mutant (L858R, del 746-750, T790M/L858R, and T790M/del 746-750 ) EGFR inhibitors. By use of a noncovalent double mutant (T790M/L858R and T790M/del 746-750 ) selective EGFR inhibitor (2) as a starting point, activities against the single mutants (L858R and del 746-750 ) were introduced through a series of structure-guided modifications. The in vitro ADME-PK properties of the lead molecules were further optimized through a number of rational structural changes. The resulting inhibitor (21) exhibited excellent cellular activity against both the single and double mutants of EGFR, demonstrating target engagement in vivo and ADME-PK properties that are suitable for further evaluation. The reversible, noncovalent inhibitors described complement the covalent pan-mutant EGFR inhibitors that have shown encouraging results in recent clinical trials.


    Organizational Affiliation

    Charles River Laboratories, 7/9 Spire Green Centre, Flex Meadow, Harlow, Essex CM19 5TR, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Epidermal growth factor receptor
A
331Homo sapiensMutation(s): 5 
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
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
60B
Query on 60B

Download SDF File 
Download CCD File 
A
~{N}-[2-(1-cyclopropylsulfonylpyrazol-4-yl)pyrimidin-4-yl]-2-methyl-1-propan-2-yl-imidazo[4,5-c]pyridin-6-amine
C20 H22 N8 O2 S
NOWVRPHFPYFSDG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.192 
  • Space Group: I 2 3
Unit Cell:
Length (Å)Angle (°)
a = 146.744α = 90.00
b = 146.744β = 90.00
c = 146.744γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
BUSTERrefinement
PHASERphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2016-01-04 
  • Released Date: 2016-09-07 
  • Deposition Author(s): Eigenbrot, C., Yu, C.

Revision History 

  • Version 1.0: 2016-09-07
    Type: Initial release
  • Version 1.1: 2016-10-26
    Type: Database references