3K54

Structures of human Bruton's tyrosine kinase in active and inactive conformations suggests a mechanism of activation for TEC family kinases.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structures of human Bruton's tyrosine kinase in active and inactive conformations suggest a mechanism of activation for TEC family kinases.

Marcotte, D.J.Liu, Y.T.Arduini, R.M.Hession, C.A.Miatkowski, K.Wildes, C.P.Cullen, P.F.Hong, V.Hopkins, B.T.Mertsching, E.Jenkins, T.J.Romanowski, M.J.Baker, D.P.Silvian, L.F.

(2010) Protein Sci. 19: 429-439

  • DOI: 10.1002/pro.321
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Bruton's tyrosine kinase (BTK), a member of the TEC family of kinases, plays a crucial role in B-cell maturation and mast cell activation. Although the structures of the unphosphorylated mouse BTK kinase domain and the unphosphorylated and phosphoryl ...

    Bruton's tyrosine kinase (BTK), a member of the TEC family of kinases, plays a crucial role in B-cell maturation and mast cell activation. Although the structures of the unphosphorylated mouse BTK kinase domain and the unphosphorylated and phosphorylated kinase domains of human ITK are known, understanding the kinase selectivity profiles of BTK inhibitors has been hampered by the lack of availability of a high resolution, ligand-bound BTK structure. Here, we report the crystal structures of the human BTK kinase domain bound to either Dasatinib (BMS-354825) at 1.9 A resolution or to 4-amino-5-(4-phenoxyphenyl)-7H-pyrrolospyrimidin- 7-yl-cyclopentane at 1.6 A resolution. This data provides information relevant to the development of small molecule inhibitors targeting BTK and the TEC family of nonreceptor tyrosine kinases. Analysis of the structural differences between the TEC and Src families of kinases near the Trp-Glu-Ile motif in the N-terminal region of the kinase domain suggests a mechanism of regulation of the TEC family members.


    Organizational Affiliation

    Biogen Idec, Inc., Drug Discovery Department, 12 Cambridge Center, Cambridge, Massachusetts 02142, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase BTK
A
283Homo sapiensMutation(s): 1 
Gene Names: BTK (AGMX1, ATK, BPK)
EC: 2.7.10.2
Find proteins for Q06187 (Homo sapiens)
Go to Gene View: BTK
Go to UniProtKB:  Q06187
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1N1
Query on 1N1

Download SDF File 
Download CCD File 
A
N-(2-CHLORO-6-METHYLPHENYL)-2-({6-[4-(2-HYDROXYETHYL)PIPERAZIN-1-YL]-2-METHYLPYRIMIDIN-4-YL}AMINO)-1,3-THIAZOLE-5-CARBOXAMIDE
Dasatinib
C22 H26 Cl N7 O2 S
ZBNZXTGUTAYRHI-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
1N1Kd: 1.4 - 1400 nM (99) BINDINGDB
1N1IC50: 1.3 - 5 nM (99) BINDINGDB
1N1Kd: 1 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.199 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 73.438α = 90.00
b = 104.622β = 90.00
c = 38.107γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
MOLREPphasing
HKL-2000data reduction
SCALAdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-01-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance