4F4P

SYK in COMPLEX WITH LIGAND LASW836


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.37 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.241 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Highly potent aminopyridines as Syk kinase inhibitors.

Castillo, M.Forns, P.Erra, M.Mir, M.Lopez, M.Maldonado, M.Orellana, A.Carreno, C.Ramis, I.Miralpeix, M.Vidal, B.

(2012) Bioorg Med Chem Lett 22: 5419-5423

  • DOI: 10.1016/j.bmcl.2012.07.045
  • Primary Citation of Related Structures:  
    4F4P

  • PubMed Abstract: 
  • A novel class of potent Syk inhibitors has been developed from rational design. Highly potent aminopyridine derivatives bearing a 4-trifluoromethyl-2-pyridyl motif and represented by compound 13b IC(50): 0.6 nM were identified. Substitution by a 2-py ...

    A novel class of potent Syk inhibitors has been developed from rational design. Highly potent aminopyridine derivatives bearing a 4-trifluoromethyl-2-pyridyl motif and represented by compound 13b IC(50): 0.6 nM were identified. Substitution by a 2-pyrazinyl motif and SAR expansion in position 4 of the central core provided diverse potent non-cytotoxic Syk inhibitors showing nanomolar activity inhibiting human mast cell line LAD2 degranulation.


    Organizational Affiliation

    Almirall-Barcelona Science Park Unit, Barcelona Science Park, 08028 Barcelona, Spain.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase SYKA273Homo sapiensMutation(s): 0 
Gene Names: SYK
EC: 2.7.10.2
Find proteins for P43405 (Homo sapiens)
Explore P43405 
Go to UniProtKB:  P43405
NIH Common Fund Data Resources
PHAROS  P43405
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
0SB
Query on 0SB

Download CCD File 
A
N-{6-[3-(piperazin-1-yl)phenyl]pyridin-2-yl}-4-(trifluoromethyl)pyridin-2-amine
C21 H20 F3 N5
FCPDILGNMHIWJE-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
0SBIC50:  0.6000000238418579   nM  Binding MOAD
0SBIC50 :  0.6000000238418579   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.37 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.241 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.501α = 90
b = 84.227β = 90
c = 89.819γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-12-12
    Type: Initial release
  • Version 1.1: 2018-01-24
    Changes: Advisory, Structure summary