4PP7

Highly Potent and Selective 3-N-methylquinazoline-4(3H)-one Based Inhibitors of B-RafV600E Kinase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Highly potent and selective 3-N-methylquinazoline-4(3H)-one based inhibitors of B-Raf(V600E) kinase.

Wenglowsky, S.Ren, L.Grina, J.Hansen, J.D.Laird, E.R.Moreno, D.Dinkel, V.Gloor, S.L.Hastings, G.Rana, S.Rasor, K.Sturgis, H.L.Voegtli, W.C.Vigers, G.Willis, B.Mathieu, S.Rudolph, J.

(2014) Bioorg Med Chem Lett 24: 1923-1927

  • DOI: 10.1016/j.bmcl.2014.03.007
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Herein we describe the design of a novel series of ATP competitive B-Raf inhibitors via structure-based methods. These 3-N-methylquinazoline-4(3H)-one based inhibitors exhibit both excellent cellular potency and striking B-Raf selectivity. Optimization led to the identification of compound 16, a potent, selective and orally available agent with excellent pharmacokinetic properties and robust tumor growth inhibition in xenograft studies ...

    Herein we describe the design of a novel series of ATP competitive B-Raf inhibitors via structure-based methods. These 3-N-methylquinazoline-4(3H)-one based inhibitors exhibit both excellent cellular potency and striking B-Raf selectivity. Optimization led to the identification of compound 16, a potent, selective and orally available agent with excellent pharmacokinetic properties and robust tumor growth inhibition in xenograft studies. Our work also demonstrates that by replacing an aryl amide with an aryl sulfonamide, a multikinase inhibitor such as AZ-628, can be converted to a selective B-Raf inhibitor, a finding that should have broad application in kinase drug discovery.


    Organizational Affiliation

    Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080-4990, United States.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase B-rafA, B307Homo sapiensMutation(s): 0 
Gene Names: BRAFBRAF1RAFB1
EC: 2.7.11.1
Find proteins for P15056 (Homo sapiens)
Explore P15056 
Go to UniProtKB:  P15056
NIH Common Fund Data Resources
PHAROS  P15056
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2VX
Query on 2VX

Download CCD File 
A, B
N-{2,4-difluoro-3-[methyl(3-methyl-4-oxo-3,4-dihydroquinazolin-6-yl)amino]phenyl}propane-1-sulfonamide
C19 H20 F2 N4 O3 S
WWMXFNLVPRQJSD-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.198 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 107.971α = 90
b = 107.971β = 90
c = 151.669γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-04-09
    Type: Initial release
  • Version 1.1: 2014-05-07
    Changes: Database references