3EMG

Discovery and SAR of novel 4-thiazolyl-2-phenylaminopyrimidines as potent inhibitors of spleen tyrosine kinase (SYK)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Discovery and SAR of novel 4-thiazolyl-2-phenylaminopyrimidines as potent inhibitors of spleen tyrosine kinase (SYK).

Farmer, L.J.Bemis, G.Britt, S.D.Cochran, J.Connors, M.Harrington, E.M.Hoock, T.Markland, W.Nanthakumar, S.Taslimi, P.Ter Haar, E.Wang, J.Zhaveri, D.Salituro, F.G.

(2008) Bioorg Med Chem Lett 18: 6231-6235

  • DOI: 10.1016/j.bmcl.2008.09.106
  • Primary Citation of Related Structures:  
    3EMG

  • PubMed Abstract: 
  • A series of SYK inhibitors based on the phenylamino pyrimidine thiazole lead 4 were prepared and evaluated for biological activity. Lead optimization provided compounds with nanomolar K(i)'s against SYK and potent inhibition in mast cell degranulation assays ...

    A series of SYK inhibitors based on the phenylamino pyrimidine thiazole lead 4 were prepared and evaluated for biological activity. Lead optimization provided compounds with nanomolar K(i)'s against SYK and potent inhibition in mast cell degranulation assays.


    Organizational Affiliation

    Department of Medicinal Chemistry, Vertex Pharmaceuticals, Inc., 130 Waverly Street, Cambridge, MA 02139, USA. luc_farmer@vrtx.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase SYKA291Homo sapiensMutation(s): 0 
Gene Names: SYK
EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for P43405 (Homo sapiens)
Explore P43405 
Go to UniProtKB:  P43405
PHAROS:  P43405
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
685 (Subject of Investigation/LOI)
Query on 685

Download Ideal Coordinates CCD File 
B [auth A]2-{2-[(3,5-dimethylphenyl)amino]pyrimidin-4-yl}-N-[(1S)-2-hydroxy-1-methylethyl]-4-methyl-1,3-thiazole-5-carboxamide
C20 H23 N5 O2 S
PEGXADGTBNRSGV-ZDUSSCGKSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
685 BindingDB:  3EMG Ki: 9 (nM) from 1 assay(s)
IC50: min: 6, max: 70 (nM) from 2 assay(s)
PDBBind:  3EMG Ki: 9 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.87α = 90
b = 84.45β = 99.63
c = 41.44γ = 90
Software Package:
Software NamePurpose
SCALAdata processing
CNSrefinement
PDB_EXTRACTdata extraction
ADSCdata collection
MOSFLMdata reduction
SCALAdata scaling
CNSphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Deposition Data

  • Deposited Date: 2008-09-24 
  • Released Date: 2008-12-02 
  • Deposition Author(s): Ter Haar, E.

Revision History  (Full details and data files)

  • Version 1.0: 2008-12-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance