4NWM

Crystal structure of Bruton agammaglobulinemia tyrosine kinase complexed with BMS-809959 aka 4-tert-butyl-n-[2-me thyl-3-(6-{[4-(morpholine-4-carbonyl)phenyl]amino}-9h- purin-2-yl)phenyl]benzamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.03 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Purine derivatives as potent Bruton's tyrosine kinase (BTK) inhibitors for autoimmune diseases.

Shi, Q.Tebben, A.Dyckman, A.J.Li, H.Liu, C.Lin, J.Spergel, S.Burke, J.R.McIntyre, K.W.Olini, G.C.Strnad, J.Surti, N.Muckelbauer, J.K.Chang, C.An, Y.Cheng, L.Ruan, Q.Leftheris, K.Carter, P.H.Tino, J.De Lucca, G.V.

(2014) Bioorg Med Chem Lett 24: 2206-2211

  • DOI: 10.1016/j.bmcl.2014.02.075
  • Primary Citation of Related Structures:  
    4NWM

  • PubMed Abstract: 
  • Investigation of various heterocyclic core isosteres of imidazopyrazines 1 & 2 yielded purine derivatives 3 & 8 as potent and selective BTK inhibitors. Subsequent SAR studies of the purine series led to the discovery of 20 as a leading compound. Comp ...

    Investigation of various heterocyclic core isosteres of imidazopyrazines 1 & 2 yielded purine derivatives 3 & 8 as potent and selective BTK inhibitors. Subsequent SAR studies of the purine series led to the discovery of 20 as a leading compound. Compound 20 is very selective when screened against a panel of 400 kinases and is a potent inhibitor in cellular assays of human B cell function including B-Cell proliferation and CD86 cell surface expression and exhibited in vivo efficacy in a mouse PCA model. Its X-ray co-crystal structure with BTK shows that the high selectivity is gained from filling a BTK specific lipophilic pocket. However, physical and ADME properties leading to low oral exposure hindered further development.


    Organizational Affiliation

    Bristol-Myers Squibb Research and Development, P.O. Box 4000, Princeton, NJ 08543-4000, United States. Electronic address: george.delucca@bms.com.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase BTKAB263Homo sapiensMutation(s): 0 
Gene Names: BTKAGMX1ATKBPK
EC: 2.7.10.2
Find proteins for Q06187 (Homo sapiens)
Explore Q06187 
Go to UniProtKB:  Q06187
NIH Common Fund Data Resources
PHAROS  Q06187
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2P5
Query on 2P5

Download Ideal Coordinates CCD File 
A, B
4-tert-butyl-N-[2-methyl-3-(6-{[4-(morpholin-4-ylcarbonyl)phenyl]amino}-7H-purin-2-yl)phenyl]benzamide
C34 H35 N7 O3
IGXJXMLDIIGDNE-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
OCS
Query on OCS
A,BL-PEPTIDE LINKINGC3 H7 N O5 SCYS
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
2P5IC50:  38   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.03 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.918α = 90
b = 86.505β = 90
c = 135.126γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
MOLREPphasing
BUSTER-TNTrefinement
PDB_EXTRACTdata extraction
DENZOdata reduction
BUSTERrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2013-12-06 
  • Released Date: 2014-04-02 
  • Deposition Author(s): Muckelbauer, J.K.

Revision History 

  • Version 1.0: 2014-04-02
    Type: Initial release
  • Version 1.1: 2014-10-08
    Changes: Database references
  • Version 1.2: 2017-11-22
    Changes: Advisory, Refinement description