4P7E

Triazolopyridine compounds as selective JAK1 inhibitors: from hit identification to GLPG0634


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Triazolopyridines as Selective JAK1 Inhibitors: From Hit Identification to GLPG0634.

Menet, C.J.Fletcher, S.R.Van Lommen, G.Geney, R.Blanc, J.Smits, K.Jouannigot, N.Deprez, P.van der Aar, E.M.Clement-Lacroix, P.Lepescheux, L.Galien, R.Vayssiere, B.Nelles, L.Christophe, T.Brys, R.Uhring, M.Ciesielski, F.Van Rompaey, L.

(2014) J.Med.Chem. 57: 9323-9342

  • DOI: 10.1021/jm501262q

  • PubMed Abstract: 
  • Janus kinases (JAK1, JAK2, JAK3, and TYK2) are involved in the signaling of multiple cytokines important in cellular function. Blockade of the JAK-STAT pathway with a small molecule has been shown to provide therapeutic immunomodulation. Having ident ...

    Janus kinases (JAK1, JAK2, JAK3, and TYK2) are involved in the signaling of multiple cytokines important in cellular function. Blockade of the JAK-STAT pathway with a small molecule has been shown to provide therapeutic immunomodulation. Having identified JAK1 as a possible new target for arthritis at Galapagos, the compound library was screened against JAK1, resulting in the identification of a triazolopyridine-based series of inhibitors represented by 3. Optimization within this chemical series led to identification of GLPG0634 (65, filgotinib), a selective JAK1 inhibitor currently in phase 2B development for RA and phase 2A development for Crohn's disease (CD).


    Organizational Affiliation

    Galapagos NV , Generaal de Wittelaan L11A3, 2800 Mechelen, Belgium.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase JAK2
A, B
293Homo sapiensMutation(s): 1 
Gene Names: JAK2
EC: 2.7.10.2
Find proteins for O60674 (Homo sapiens)
Go to Gene View: JAK2
Go to UniProtKB:  O60674
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2HB
Query on 2HB

Download SDF File 
Download CCD File 
A, B
N-(5-{4-[(1,1-dioxidothiomorpholin-4-yl)methyl]phenyl}[1,2,4]triazolo[1,5-a]pyridin-2-yl)cyclopropanecarboxamide
G146034
C21 H23 N5 O3 S
RIJLVEAXPNLDTC-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
A, B
L-PEPTIDE LINKINGC9 H12 N O6 PTYR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
2HBIC50: 25 - 17453 nM (99) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.205 
  • Space Group: P 41
Unit Cell:
Length (Å)Angle (°)
a = 111.390α = 90.00
b = 111.390β = 90.00
c = 71.080γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
iMOSFLMdata reduction
PDB_EXTRACTdata extraction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2014-11-19
    Type: Initial release
  • Version 1.1: 2014-12-10
    Type: Database references