3KF7

Crystal Structure of Human p38alpha Complexed With a Triazolopyrimidine compound


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.235 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Continued exploration of the triazolopyridine scaffold as a platform for p38 MAP kinase inhibition.

Jerome, K.D.Rucker, P.V.Xing, L.Shieh, H.S.Baldus, J.E.Selness, S.R.Letavic, M.A.Braganza, J.F.McClure, K.F.

(2010) Bioorg Med Chem Lett 20: 469-473

  • DOI: 10.1016/j.bmcl.2009.11.114
  • Primary Citation of Related Structures:  
    3KF7

  • PubMed Abstract: 
  • The structure based drug design, synthesis and structure-activity relationship of a series of C6 sulfur linked triazolopyridine based p38 inhibitors are described. The metabolic deficiencies of this series were overcome through changes in the C6 link ...

    The structure based drug design, synthesis and structure-activity relationship of a series of C6 sulfur linked triazolopyridine based p38 inhibitors are described. The metabolic deficiencies of this series were overcome through changes in the C6 linker from sulfur to methylene, which was predicted by molecular modeling to be bioisosteric. X-ray of the ethylene linked compound 61 confirmed the predicted binding orientation of the scaffold in the p38 enzyme.


    Organizational Affiliation

    Pfizer Global Research and Development, St. Louis Laboratories, 700 Chesterfield Pkwy. W., Chesterfield, MO 63017, USA. kevin.d.jerome@pfizer.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 14A360Homo sapiensMutation(s): 0 
Gene Names: CSBPCSBP1CSBP2CSPB1MAPK14MXI2THP-1SAPK2A
EC: 2.7.11.24
Find proteins for Q16539 (Homo sapiens)
Explore Q16539 
Go to UniProtKB:  Q16539
NIH Common Fund Data Resources
PHAROS  Q16539
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
L9G
Query on L9G

Download CCD File 
A
3-{6-[2-(2,4-difluorophenyl)ethyl][1,2,4]triazolo[4,3-a]pyridin-3-yl}-4-methylbenzamide
C22 H18 F2 N4 O
IECIDZDLEJWPAN-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
L9GIC50 :  40   nM  PDBBind
L9GIC50:  40   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.235 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.068α = 90
b = 74.329β = 90
c = 77.617γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-12-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2017-11-01
    Changes: Refinement description