4QT1

JAK3 kinase domain in complex with 1-[(3S)-1-isobutylsulfonyl-3-piperidyl]-3-(5H-pyrrolo[2,3-b]pyrazin-2-yl)urea


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.210 

wwPDB Validation 3D Report Full Report



Literature

Scaffold hopping towards potent and selective JAK3 inhibitors: discovery of novel C-5 substituted pyrrolopyrazines

De Vicente, J.Lemoine, R.Bartlett, M.Hermann, J.C.Hekmat-Nejad, M.Henningsen, R.Jin, S.Kuglstatter, A.Li, H.Lovey, A.J.Menke, J.Niu, L.Patel, V.Petersen, A.Setti, L.Shao, A.Tivitmahaisoon, P.Vu, M.D.Soth, M.

(2014) Bioorg Med Chem Lett 24: 4969-4975

  • DOI: 10.1016/j.bmcl.2014.09.031
  • Primary Citation of Related Structures:  
    4QT1

  • PubMed Abstract: 
  • The discovery of a novel series of pyrrolopyrazines as JAK inhibitors with comparable enzyme and cellular activity to tofacitinib is described. The series was identified using a scaffold hopping approach aided by structure based drug design using principles of intramolecular hydrogen bonding for conformational restriction and targeting specific pockets for modulating kinase activity ...

    The discovery of a novel series of pyrrolopyrazines as JAK inhibitors with comparable enzyme and cellular activity to tofacitinib is described. The series was identified using a scaffold hopping approach aided by structure based drug design using principles of intramolecular hydrogen bonding for conformational restriction and targeting specific pockets for modulating kinase activity.


    Organizational Affiliation

    Small Molecule Research, Pharma Research & Early Development, pRED, Hoffmann-La Roche Inc., 340 Kingsland Street, Nutley, NJ 07110, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase JAK3A314Homo sapiensMutation(s): 2 
Gene Names: JAK3
EC: 2.7.10.2
Find proteins for P52333 (Homo sapiens)
Explore P52333 
Go to UniProtKB:  P52333
NIH Common Fund Data Resources
PHAROS  P52333
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3C9
Query on 3C9

Download CCD File 
A
1-{(3S)-1-[(2-methylpropyl)sulfonyl]piperidin-3-yl}-3-(5H-pyrrolo[2,3-b]pyrazin-2-yl)urea
C16 H24 N6 O3 S
UTTDMGAEOAWZGU-LBPRGKRZSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
3C9IC50:  7   nM  BindingDB
3C9IC50:  7   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.210 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.921α = 90
b = 75.703β = 90
c = 89.729γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
REFMACphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-05-27
    Type: Initial release