3FI3

Crystal structure of JNK3 with indazole inhibitor, SR-3737

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.180 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Structure-activity relationships and X-ray structures describing the selectivity of aminopyrazole inhibitors for c-Jun N-terminal kinase 3 (JNK3) over p38.

Kamenecka, T., Habel, J., Duckett, D., Chen, W., Ling, Y.Y., Frackowiak, B., Jiang, R., Shin, Y., Song, X., LoGrasso, P.

(2009) J.Biol.Chem. 284: 12853-12861

  • DOI: 10.1074/jbc.M809430200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • c-Jun N-terminal kinase 3alpha1 (JNK3alpha1) is a mitogen-activated protein kinase family member expressed primarily in the brain that phosphorylates protein transcription factors, including c-Jun and activating transcription factor-2 (ATF-2) upon ac ...

    c-Jun N-terminal kinase 3alpha1 (JNK3alpha1) is a mitogen-activated protein kinase family member expressed primarily in the brain that phosphorylates protein transcription factors, including c-Jun and activating transcription factor-2 (ATF-2) upon activation by a variety of stress-based stimuli. In this study, we set out to design JNK3-selective inhibitors that had >1000-fold selectivity over p38, another closely related mitogen-activated protein kinase family member. To do this we employed traditional medicinal chemistry principles coupled with structure-based drug design. Inhibitors from the aminopyrazole class, such as SR-3576, were found to be very potent JNK3 inhibitors (IC(50) = 7 nm) with >2800-fold selectivity over p38 (p38 IC(50) > 20 microm) and had cell-based potency of approximately 1 microm. In contrast, indazole-based inhibitors exemplified by SR-3737 were potent inhibitors of both JNK3 (IC(50) = 12 nm) and p38 (IC(50) = 3 nm). These selectivity differences between the indazole class and the aminopyrazole class came despite nearly identical binding (root mean square deviation = 0.33 A) of these two compound classes to JNK3. The structural features within the compounds giving rise to the selectivity in the aminopyrazole class include the highly planar nature of the pyrazole, N-linked phenyl structures, which better occupied the smaller active site of JNK3 compared with the larger active site of p38.

    Organizational Affiliation: 

    Department of Molecular Therapeutics and Translational Research Institute, The Scripps Research Institute, Jupiter, FL 33458, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mitogen-activated protein kinase 10
A
364Homo sapiensMutation(s): 0 
Gene Names: MAPK10 (JNK3, JNK3A, PRKM10, SAPK1B)
EC: 2.7.11.24
Find proteins for P53779 (Homo sapiens)
Go to Gene View: MAPK10
Go to UniProtKB:  P53779
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO
Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
JK2
Query on JK2
Download SDF File 
Download CCD File 
A
3-{5-[(2-fluorophenyl)amino]-1H-indazol-1-yl}-N-(3,4,5-trimethoxyphenyl)benzamide
C29 H25 F N4 O4
GYQLVKWGHKBDMP-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
OCY
Query on OCY
A
L-PEPTIDE LINKINGC5 H11 N O3 SCYS
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
JK2IC50: 9 - 73 nM (100) BINDINGDB
JK2IC50: 12 nM BINDINGMOAD
JK2IC50: 12 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.180 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 82.862α = 90.00
b = 124.105β = 90.00
c = 69.519γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data collection
PHENIXrefinement
PHENIXphasing
SCALAdata scaling
PHENIXmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-03-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance