3E62

Fragment based discovery of JAK-2 inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.922 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.166 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Fragment-based discovery of JAK-2 inhibitors.

Antonysamy, S.Hirst, G.Park, F.Sprengeler, P.Stappenbeck, F.Steensma, R.Wilson, M.Wong, M.

(2009) Bioorg.Med.Chem.Lett. 19: 279-282

  • DOI: 10.1016/j.bmcl.2008.08.064
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Fragment-based hit identification coupled with crystallographically enabled structure-based drug design was used to design potent inhibitors of JAK-2. After two iterations from fragment 1, we were able to increase potency by greater than 500-fold to ...

    Fragment-based hit identification coupled with crystallographically enabled structure-based drug design was used to design potent inhibitors of JAK-2. After two iterations from fragment 1, we were able to increase potency by greater than 500-fold to provide sulfonamide 13, a 78-nM JAK-2 inhibitor.


    Organizational Affiliation

    Medicinal Chemistry, SGX Pharmaceuticals, Inc, San Diego, CA 92121, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase JAK2
A
293Homo sapiensMutation(s): 0 
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
5B1
Query on 5B1

Download SDF File 
Download CCD File 
A
5-bromo-1H-indazol-3-amine
C7 H6 Br N3
OMPYFDJVSAMSMA-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
A
L-PEPTIDE LINKINGC9 H12 N O6 PTYR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
5B1IC50: 40900 nM (100) BINDINGDB
5B1IC50: 40900 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.922 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.166 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 93.302α = 90.00
b = 102.297β = 90.00
c = 68.386γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-10-14
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2012-02-01
    Type: Structure summary
  • Version 1.3: 2012-02-08
    Type: Structure summary