4HGE

JAK2 kinase (JH1 domain) in complex with compound 8


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.182 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Discovery of potent and selective pyrazolopyrimidine janus kinase 2 inhibitors.

Hanan, E.J.van Abbema, A.Barrett, K.Blair, W.S.Blaney, J.Chang, C.Eigenbrot, C.Flynn, S.Gibbons, P.Hurley, C.A.Kenny, J.R.Kulagowski, J.Lee, L.Magnuson, S.R.Morris, C.Murray, J.Pastor, R.M.Rawson, T.Siu, M.Ultsch, M.Zhou, A.Sampath, D.Lyssikatos, J.P.

(2012) J Med Chem 55: 10090-10107

  • DOI: 10.1021/jm3012239
  • Primary Citation of Related Structures:  
    4HGE

  • PubMed Abstract: 
  • The discovery of somatic Jak2 mutations in patients with chronic myeloproliferative neoplasms has led to significant interest in discovering selective Jak2 inhibitors for use in treating these disorders. A high-throughput screening effort identified the pyrazolo[1,5-a]pyrimidine scaffold as a potent inhibitor of Jak2 ...

    The discovery of somatic Jak2 mutations in patients with chronic myeloproliferative neoplasms has led to significant interest in discovering selective Jak2 inhibitors for use in treating these disorders. A high-throughput screening effort identified the pyrazolo[1,5-a]pyrimidine scaffold as a potent inhibitor of Jak2. Optimization of lead compounds 7a-b and 8 in this chemical series for activity against Jak2, selectivity against other Jak family kinases, and good in vivo pharmacokinetic properties led to the discovery of 7j. In a SET2 xenograft model that is dependent on Jak2 for growth, 7j demonstrated a time-dependent knock-down of pSTAT5, a downstream target of Jak2.


    Organizational Affiliation

    Department of Discovery Chemistry, Genentech, Inc. 1 DNA Way, South San Francisco, California 94080, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase JAK2A, B300Homo sapiensMutation(s): 0 
Gene Names: JAK2
EC: 2.7.10.2
Find proteins for O60674 (Homo sapiens)
Explore O60674 
Go to UniProtKB:  O60674
NIH Common Fund Data Resources
PHAROS:  O60674
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
15V
Query on 15V

Download Ideal Coordinates CCD File 
C [auth A], D [auth B]N-[1-(3-chlorophenyl)-3-methyl-1H-pyrazol-5-yl]pyrazolo[1,5-a]pyrimidine-3-carboxamide
C17 H13 Cl N6 O
YLBXBHSEZZNJPX-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
A, BL-PEPTIDE LINKINGC9 H12 N O6 PTYR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
15VKi:  11.899999618530273   nM  Binding MOAD
15VKi :  11.899999618530273   nM  PDBBind
15VKi:  11.899999618530273   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.182 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 111.898α = 90
b = 111.898β = 90
c = 70.572γ = 90
Software Package:
Software NamePurpose
BOSdata collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-10-24
    Type: Initial release
  • Version 1.1: 2012-12-12
    Changes: Database references