6DI9

CRYSTAL STRUCTURE OF BTK IN COMPLEX WITH COVALENT INHIBITOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.194 

wwPDB Validation   3D Report Full Report



Literature

Discovery of potent, highly selective covalent irreversible BTK inhibitors from a fragment hit.

Qiu, H.Liu-Bujalski, L.Caldwell, R.D.Follis, A.V.Gardberg, A.Goutopoulos, A.Grenningloh, R.Head, J.Johnson, T.Jones, R.Mochalkin, I.Morandi, F.Neagu, C.Sherer, B.

(2018) Bioorg Med Chem Lett 28: 2939-2944

  • DOI: 10.1016/j.bmcl.2018.07.008
  • Primary Citation of Related Structures:  
    6DI3, 6DI5, 6DI9

  • PubMed Abstract: 
  • Bruton's Tyrosine Kinase (BTK) is a member of the TEC kinase family that is expressed in cells of hematopoietic lineage (e.g., in B cells, macrophages, monocytes, and mast cells). Small molecule covalent irreversible BTK inhibitor targeting Cys481 within ...

    Bruton's Tyrosine Kinase (BTK) is a member of the TEC kinase family that is expressed in cells of hematopoietic lineage (e.g., in B cells, macrophages, monocytes, and mast cells). Small molecule covalent irreversible BTK inhibitor targeting Cys481 within the ATP-binding pocket, for example ibrutinib, has been applied in the treatment of B-cell malignancies. Starting from a fragment hit, we discovered a novel series of potent covalent irreversible BTK inhibitors that occupy selectivity pocket of the active site of the BTK kinase domain. Guided by X-ray structures and a fragment-based drug design (FBDD) approach, we generated molecules showing comparable cellular potency to ibrutinib and higher kinome selectivity against undesirable off-targets like EGFR.


    Organizational Affiliation

    EMD Serono Research & Development Institute, Inc., 45A Middlesex Turnpike, Billerica 01821, MA, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase BTK A271Homo 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 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GJJ
Query on GJJ

Download Ideal Coordinates CCD File 
A
6-[(3S)-3-(acryloylamino)pyrrolidin-1-yl]-2-{[4-(tert-butylcarbamoyl)phenyl]amino}pyridine-3-carboxamide
C24 H30 N6 O3
AYRMUHGKVWLINC-KRWDZBQOSA-N
 Ligand Interaction
DMS
Query on DMS

Download Ideal Coordinates CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.194 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.911α = 90
b = 104.61β = 90
c = 38.098γ = 90
Software Package:
Software NamePurpose
HKL-2000data scaling
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2018-05-23 
  • Released Date: 2018-09-05 
  • Deposition Author(s): GARDBERG, A.

Revision History 

  • Version 1.0: 2018-09-05
    Type: Initial release