4FK6

JAK1 kinase (JH1 domain) in complex with compound 72


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure-based discovery of C-2 substituted imidazo-pyrrolopyridine JAK1 inhibitors with improved selectivity over JAK2.

Labadie, S.Dragovich, P.S.Barrett, K.Blair, W.S.Bergeron, P.Chang, C.Deshmukh, G.Eigenbrot, C.Ghilardi, N.Gibbons, P.Hurley, C.A.Johnson, A.Kenny, J.R.Kohli, P.B.Kulagowski, J.J.Liimatta, M.Lupardus, P.J.Mendonca, R.Murray, J.M.Pulk, R.Shia, S.Steffek, M.Ubhayakar, S.Ultsch, M.van Abbema, A.Ward, S.Zak, M.

(2012) Bioorg.Med.Chem.Lett. 22: 7627-7633

  • DOI: 10.1016/j.bmcl.2012.10.008

  • PubMed Abstract: 
  • Herein we describe our successful efforts in obtaining C-2 substituted imidazo-pyrrolopyridines with improved JAK1 selectivity relative to JAK2 by targeting an amino acid residue that differs between the two isoforms (JAK1: E966; JAK2: D939). Efforts ...

    Herein we describe our successful efforts in obtaining C-2 substituted imidazo-pyrrolopyridines with improved JAK1 selectivity relative to JAK2 by targeting an amino acid residue that differs between the two isoforms (JAK1: E966; JAK2: D939). Efforts to improve cellular potency by reducing the polarity of the inhibitors are also detailed. The X-ray crystal structure of a representative inhibitor in complex with the JAK1 enzyme is also disclosed.


    Organizational Affiliation

    Small Molecule Discovery Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, United States. sharadal@gene.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase JAK1
A, B
302Homo sapiensMutation(s): 0 
Gene Names: JAK1 (JAK1A, JAK1B)
EC: 2.7.10.2
Find proteins for P23458 (Homo sapiens)
Go to Gene View: JAK1
Go to UniProtKB:  P23458
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
0UJ
Query on 0UJ

Download SDF File 
Download CCD File 
A, B
N-({1-[(1R,2R,4S)-bicyclo[2.2.1]hept-2-yl]-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridin-2-yl}methyl)methanesulfonamide
C17 H21 N5 O2 S
IQHKHGHDPGFXAV-MISXGVKJSA-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 %)
0UJKi: 0.2 - 3.2 nM (100) BINDINGDB
0UJEC50: 13 - 355 nM (100) BINDINGDB
0UJKi: 0.2 nM BINDINGMOAD
0UJKi: 0.2 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.209 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 43.248α = 90.00
b = 169.966β = 90.51
c = 43.805γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
Blu-Icedata collection
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-11-07
    Type: Initial release
  • Version 1.1: 2012-12-12
    Type: Database references