1SM2

Crystal structure of the phosphorylated Interleukin-2 tyrosine kinase catalytic domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structures of interleukin-2 tyrosine kinase and their implications for the design of selective inhibitors.

Brown, K.Long, J.M.Vial, S.C.Dedi, N.Dunster, N.J.Renwick, S.B.Tanner, A.J.Frantz, J.D.Fleming, M.A.Cheetham, G.M.

(2004) J.Biol.Chem. 279: 18727-18732

  • DOI: 10.1074/jbc.M400031200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Interleukin-2 tyrosine kinase, Itk, is an important member of the Tec family of non-receptor tyrosine kinases that play a central role in signaling through antigen receptors such as the T-cell receptor, B-cell receptor, and Fcepsilon. Selective inhib ...

    Interleukin-2 tyrosine kinase, Itk, is an important member of the Tec family of non-receptor tyrosine kinases that play a central role in signaling through antigen receptors such as the T-cell receptor, B-cell receptor, and Fcepsilon. Selective inhibition of Itk may be an important way of modulating many diseases involving heightened or inappropriate activation of the immune system. In addition to an unliganded nonphophorylated Itk catalytic kinase domain, we determined the crystal structures of the phosphorylated and nonphosphorylated kinase domain bound to staurosporine, a potent broad-spectrum kinase inhibitor. These structures are useful for the design of novel, highly potent and selective Itk inhibitors and provide insight into the influence of inhibitor binding and phosphorylation on the conformation of Itk.


    Organizational Affiliation

    Vertex Pharmaceuticals (Europe) Ltd., 88 Milton Park, Abingdon, Oxfordshire OX14 4RY, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase ITK/TSK
A, B
264Homo sapiensMutation(s): 0 
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 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
STU
Query on STU

Download SDF File 
Download CCD File 
A, B
STAUROSPORINE
C28 H26 N4 O3
HKSZLNNOFSGOKW-FYTWVXJKSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
STUKi: <10 nM BINDINGMOAD
STOKi: <10 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.214 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 125.100α = 90.00
b = 74.400β = 93.90
c = 78.900γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
CCP4data scaling
CNXrefinement
SCALAdata scaling
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-07-16
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance