1Y6A

Crystal structure of VEGFR2 in complex with a 2-anilino-5-aryl-oxazole inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Discovery and evaluation of 2-anilino-5-aryloxazoles as a novel class of VEGFR2 kinase inhibitors.

Harris, P.A.Cheung, M.Hunter, R.N.Brown, M.L.Veal, J.M.Nolte, R.T.Wang, L.Liu, W.Crosby, R.M.Johnson, J.H.Epperly, A.H.Kumar, R.Luttrell, D.K.Stafford, J.A.

(2005) J.Med.Chem. 48: 1610-1619

  • DOI: 10.1021/jm049538w
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • A series of derivatives of 2-anilino-5-phenyloxazole (5) has been identified as inhibitors of VEGFR2 kinase. Herein we describe the structure-activity relationship (SAR) of this novel template. Optimization of both aryl rings led to very potent inhib ...

    A series of derivatives of 2-anilino-5-phenyloxazole (5) has been identified as inhibitors of VEGFR2 kinase. Herein we describe the structure-activity relationship (SAR) of this novel template. Optimization of both aryl rings led to very potent inhibitors at both the enzymatic and cellular levels. Oxazole 39 had excellent solubility and good oral PK when dosed as the bis-mesylate salt and demonstrated moderate in vivo efficacy against HT29 human colon tumor xenografts. X-ray crystallography confirmed the proposed binding mode, and comparison of oxazoles 39 and 46 revealed interesting differences in orientation of 2-pyridyl and 3-pyridyl rings, respectively, attached at the meta position of the 5-phenyl ring.


    Organizational Affiliation

    GlaxoSmithKline, Five Moore Drive, Research Triangle Park, NC 27709, USA. Philip.A.Harris@gsk.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Vascular endothelial growth factor receptor 2
A
366Homo sapiensMutation(s): 0 
Gene Names: KDR (FLK1, VEGFR2)
EC: 2.7.10.1
Find proteins for P35968 (Homo sapiens)
Go to Gene View: KDR
Go to UniProtKB:  P35968
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
AAZ
Query on AAZ

Download SDF File 
Download CCD File 
A
N-[5-(ETHYLSULFONYL)-2-METHOXYPHENYL]-5-[3-(2-PYRIDINYL)PHENYL]-1,3-OXAZOL-2-AMINE
C23 H21 N3 O4 S
HTIZPBXCJPQDEM-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
AAZIC50: 17 - 22 nM (100) BINDINGDB
AAZIC50: 22 nM BINDINGMOAD
AAZIC50: 22 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.196 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 37.732α = 90.00
b = 94.570β = 90.00
c = 96.473γ = 90.00
Software Package:
Software NamePurpose
MAR345data collection
REFMACrefinement
SCALEPACKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-06-07
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description