4PP9

ITK kinase domain with compound 1 (N-[1-(3-CYANOBENZYL)-1H-PYRAZOL-4-YL]-2H-INDAZOLE-3-CARBOXAMIDE)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.58 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.223 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Discovery and optimization of indazoles as potent and selective interleukin-2 inducible T cell kinase (ITK) inhibitors.

Pastor, R.M.Burch, J.D.Magnuson, S.Ortwine, D.F.Chen, Y.De La Torre, K.Ding, X.Eigenbrot, C.Johnson, A.Liimatta, M.Liu, Y.Shia, S.Wang, X.Wu, L.C.Pei, Z.

(2014) Bioorg.Med.Chem.Lett. 24: 2448-2452

  • DOI: 10.1016/j.bmcl.2014.04.023
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • There is evidence that small molecule inhibitors of the non-receptor tyrosine kinase ITK, a component of the T-cell receptor signaling cascade, could represent a novel asthma therapeutic class. Moreover, given the expected chronic dosing regimen of a ...

    There is evidence that small molecule inhibitors of the non-receptor tyrosine kinase ITK, a component of the T-cell receptor signaling cascade, could represent a novel asthma therapeutic class. Moreover, given the expected chronic dosing regimen of any asthma treatment, highly selective as well as potent inhibitors would be strongly preferred in any potential therapeutic. Here we report hit-to-lead optimization of a series of indazoles that demonstrate sub-nanomolar inhibitory potency against ITK with strong cellular activity and good kinase selectivity. We also elucidate the binding mode of these inhibitors by solving the X-ray crystal structures of the complexes.


    Organizational Affiliation

    Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, United States. Electronic address: pastor.richard@gene.com.,Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase ITK/TSK
A, B
266Homo sapiensMutation(s): 1 
Gene Names: ITK (EMT, LYK)
EC: 2.7.10.2
Find proteins for Q08881 (Homo sapiens)
Go to Gene View: ITK
Go to UniProtKB:  Q08881
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
2VT
Query on 2VT

Download SDF File 
Download CCD File 
A, B
N-[1-(3-cyanobenzyl)-1H-pyrazol-4-yl]-2H-indazole-3-carboxamide
C19 H14 N6 O
QOSKBOUKENYWAA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.58 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.223 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 55.039α = 90.00
b = 104.090β = 110.21
c = 57.313γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
BUSTERrefinement
HKL-2000data reduction
BOSdata collection
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-06-04
    Type: Initial release
  • Version 1.1: 2018-01-31
    Type: Experimental preparation