4L7F

Co-crystal Structure of JNK1 and AX13587


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.161 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Hit-to-lead optimization and kinase selectivity of imidazo[1,2-a]quinoxalin-4-amine derived JNK1 inhibitors.

Li, B.Cociorva, O.M.Nomanbhoy, T.Weissig, H.Li, Q.Nakamura, K.Liyanage, M.Zhang, M.C.Shih, A.Y.Aban, A.Hu, Y.Cajica, J.Pham, L.Kozarich, J.W.Shreder, K.R.

(2013) Bioorg.Med.Chem.Lett. 23: 5217-5222

  • DOI: 10.1016/j.bmcl.2013.06.087

  • PubMed Abstract: 
  • As the result of a rhJNK1 HTS, the imidazo[1,2-a]quinoxaline 1 was identified as a 1.6 μM rhJNK1 inhibitor. Optimization of this compound lead to AX13587 (rhJNK1 IC50=160 nM) which was co-crystallized with JNK1 to identify key molecular interactions. ...

    As the result of a rhJNK1 HTS, the imidazo[1,2-a]quinoxaline 1 was identified as a 1.6 μM rhJNK1 inhibitor. Optimization of this compound lead to AX13587 (rhJNK1 IC50=160 nM) which was co-crystallized with JNK1 to identify key molecular interactions. Kinase profiling against 125+ kinases revealed AX13587 was an inhibitor of JNK, MAST3, and MAST4 whereas its methylene homolog AX14373 (native JNK1 IC50=47 nM) was a highly specific JNK inhibitor.


    Organizational Affiliation

    ActivX Biosciences, Inc., 11025 N. Torrey Pines Road, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mitogen-activated protein kinase 8
A
367Homo sapiensMutation(s): 0 
Gene Names: MAPK8 (JNK1, PRKM8, SAPK1, SAPK1C)
EC: 2.7.11.24
Find proteins for P45983 (Homo sapiens)
Go to Gene View: MAPK8
Go to UniProtKB:  P45983
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1V5
Query on 1V5

Download SDF File 
Download CCD File 
A
N-[1-(4-fluorophenyl)cyclopropyl]-4-[(trans-4-hydroxycyclohexyl)amino]imidazo[1,2-a]quinoxaline-8-carboxamide
C26 H26 F N5 O2
MFJOWCFANZXQBU-MXVIHJGJSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
1V5IC50: 160 nM BINDINGMOAD
1V5IC50: 160 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.161 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 135.802α = 90.00
b = 135.802β = 90.00
c = 94.208γ = 120.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-21
    Type: Initial release
  • Version 1.1: 2013-10-09
    Type: Database references