3U8W

Crystal Structure of p38a Mitogen-Activated Protein Kinase in Complex with a Triazolopyridazinone inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.234 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Identification of triazolopyridazinones as potent p38alpha inhibitors.

Herberich, B.Jackson, C.Wurz, R.P.Pettus, L.H.Sherman, L.Liu, Q.Henkle, B.Saris, C.J.Wong, L.M.Chmait, S.Lee, M.R.Mohr, C.Hsieh, F.Tasker, A.S.

(2012) Bioorg.Med.Chem.Lett. 22: 1226-1229

  • DOI: 10.1016/j.bmcl.2011.11.067

  • PubMed Abstract: 
  • Structure-activity relationship (SAR) investigations of a novel class of triazolopyridazinone p38α mitogen activated protein kinase (MAPK) inhibitors are disclosed. From these studies, increased in vitro potency was observed for 2,6-disubstituted phe ...

    Structure-activity relationship (SAR) investigations of a novel class of triazolopyridazinone p38α mitogen activated protein kinase (MAPK) inhibitors are disclosed. From these studies, increased in vitro potency was observed for 2,6-disubstituted phenyl moieties and N-ethyl triazolopyridazinone cores due to key contacts with Leu108, Ala157 and Val38. Further investigation led to the identification of three compounds, 3g, 3j and 3m that are highly potent inhibitors of LPS-induced MAPKAP kinase 2 (MK2) phosphorylation in 50% human whole blood (hWB), and possess desirable in vivo pharmacokinetic and kinase selectivity profiles.


    Organizational Affiliation

    Department of Chemistry Research and Discovery, Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA 91320, USA. brad.herberich@amgen.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mitogen-activated protein kinase 14
A
366Homo sapiensMutation(s): 0 
Gene Names: MAPK14 (CSBP, CSBP1, CSBP2, CSPB1, MXI2, SAPK2A)
EC: 2.7.11.24
Find proteins for Q16539 (Homo sapiens)
Go to Gene View: MAPK14
Go to UniProtKB:  Q16539
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
09J
Query on 09J

Download SDF File 
Download CCD File 
A
3-[3-(2-chloro-6-fluorophenyl)-5-ethyl-6-oxo-5,6-dihydro[1,2,4]triazolo[4,3-b]pyridazin-7-yl]-N-cyclopropyl-4-methylbenzamide
C24 H21 Cl F N5 O2
JCOILWGRHHMFON-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
09JIC50: 1 - 4.9 nM (100) BINDINGDB
09JIC50: 1 nM BINDINGMOAD
09JIC50: 1 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.234 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 45.143α = 90.00
b = 85.789β = 90.00
c = 120.569γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
JDirectordata collection
HKL-2000data scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2011-10-17 
  • Released Date: 2012-08-29 
  • Deposition Author(s): Mohr, C., Jordan, S.

Revision History 

  • Version 1.0: 2012-08-29
    Type: Initial release