3GFE

Crystal Structure of p38a Mitogen-Activated Protein Kinase in Complex with a Pyrazolopyridinone Inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted P37Click on this verticalbar to view details

This is version 1.2 of the entry. See complete history


Literature

Part 1: Structure-Activity Relationship (SAR) investigations of fused pyrazoles as potent, selective and orally available inhibitors of p38alpha mitogen-activated protein kinase.

Wurz, R.P.Pettus, L.H.Xu, S.Henkle, B.Sherman, L.Plant, M.Miner, K.McBride, H.Wong, L.M.Saris, C.J.Lee, M.R.Chmait, S.Mohr, C.Hsieh, F.Tasker, A.S.

(2009) Bioorg Med Chem Lett 19: 4724-4728

  • DOI: https://doi.org/10.1016/j.bmcl.2009.06.058
  • Primary Citation of Related Structures:  
    3GFE

  • PubMed Abstract: 

    A novel class of fused pyrazole-derived inhibitors of p38alpha mitogen-activated protein kinase (MAPK) is disclosed. These inhibitors were evaluated for their ability to inhibit the p38alpha enzyme, the secretion of TNFalpha in a LPS-challenged THP1 cell line and TNFalpha-induced production of IL-8 in 50% human whole blood. This series was optimized through a SAR investigation to provide inhibitors with IC(50) values in the low single-digit nanomolar range in whole blood. Further investigation of their pharmacokinetic profiles led to the identification of two potent and orally bioavailable p38 inhibitors 10 m and 10 q. Inhibitor 10 m was found to be efficacious in vivo in the inhibition of TNFalpha production in LPS-stimulated Lewis rats with an ED(50) of 0.1mg/kg while 10 q was found to have an ED(50) of 0.05-0.07 mg/kg.


  • Organizational Affiliation

    Department of Chemistry Research & Discovery, Amgen Inc, Thousand Oaks, CA 91320, USA. rwurz@amgen.com


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 14366Homo sapiensMutation(s): 0 
Gene Names: MAPK14CSBPCSBP1CSBP2CSPB1MXI2
EC: 2.7.11.24
UniProt & NIH Common Fund Data Resources
Find proteins for Q16539 (Homo sapiens)
Explore Q16539 
Go to UniProtKB:  Q16539
PHAROS:  Q16539
GTEx:  ENSG00000112062 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ16539
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
P37
Query on P37

Download Ideal Coordinates CCD File 
B [auth A]N-cyclopropyl-3-{[1-(2,4-difluorophenyl)-7-methyl-6-oxo-6,7-dihydro-1H-pyrazolo[3,4-b]pyridin-4-yl]amino}-4-methylbenzamide
C24 H21 F2 N5 O2
WMEYCLAVMZKZCS-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
P37 PDBBind:  3GFE IC50: 3.2 (nM) from 1 assay(s)
BindingDB:  3GFE IC50: 3.2 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.419α = 90
b = 87.708β = 90
c = 122.332γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted P37Click on this verticalbar to view details

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-07-14
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2024-02-21
    Changes: Data collection, Database references, Derived calculations