Morpholino pyrrolotriazine P38 Alpha map kinase inhibitor compound 30

Experimental Data Snapshot

  • Resolution: 2.40 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.209 

wwPDB Validation   3D Report Full Report

Ligand Structure Quality Assessment 

This is version 1.2 of the entry. See complete history


Synthesis and SAR of new pyrrolo[2,1-f][1,2,4]triazines as potent p38 alpha MAP kinase inhibitors.

Wrobleski, S.T.Lin, S.Hynes, J.Wu, H.Pitt, S.Shen, D.R.Zhang, R.Gillooly, K.M.Shuster, D.J.McIntyre, K.W.Doweyko, A.M.Kish, K.F.Tredup, J.A.Duke, G.J.Sack, J.S.McKinnon, M.Dodd, J.Barrish, J.C.Schieven, G.L.Leftheris, K.

(2008) Bioorg Med Chem Lett 18: 2739-2744

  • DOI: https://doi.org/10.1016/j.bmcl.2008.02.067
  • Primary Citation of Related Structures:  
    3BV2, 3BV3

  • PubMed Abstract: 

    A novel series of compounds based on the pyrrolo[2,1-f][1,2,4]triazine ring system have been identified as potent p38 alpha MAP kinase inhibitors. The synthesis, structure-activity relationships (SAR), and in vivo activity of selected analogs from this class of inhibitors are reported. Additional studies based on X-ray co-crystallography have revealed that one of the potent inhibitors from this series binds to the DFG-out conformation of the p38 alpha enzyme.

  • Organizational Affiliation

    Department of Immunology Chemistry, Bristol-Myers Squibb, Princeton, NJ 08543-4000, USA. stephen.wrobleski@bms.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 14366Homo sapiensMutation(s): 0 
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
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on P38

Download Ideal Coordinates CCD File 
B [auth A]5-methyl-4-[(2-methyl-5-{[(2-morpholin-4-ylpyridin-4-yl)carbonyl]amino}phenyl)amino]-N-(1-phenylethenyl)pyrrolo[2,1-f][1,2,4]triazine-6-carboxamide
C33 H32 N8 O3
Binding Affinity Annotations 
IDSourceBinding Affinity
P38 Binding MOAD:  3BV2 IC50: 0.44 (nM) from 1 assay(s)
PDBBind:  3BV2 IC50: 0.44 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.40 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.879α = 90
b = 74.175β = 90
c = 77.848γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

  • Released Date: 2008-04-08 
  • Deposition Author(s): Sack, J.S.

Revision History  (Full details and data files)

  • Version 1.0: 2008-04-08
    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