1UKH

Structural basis for the selective inhibition of JNK1 by the scaffolding protein JIP1 and SP600125


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.226 
  • R-Value Observed: 0.226 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for the selective inhibition of JNK1 by the scaffolding protein JIP1 and SP600125

Heo, Y.-S.Kim, S.K.Seo, C.I.Kim, Y.K.Sung, B.-J.Lee, H.S.Lee, J.I.Park, S.-Y.Kim, J.H.Hwang, K.Y.Hyun, Y.-L.Jeon, Y.H.Ro, S.Cho, J.M.Lee, T.G.Yang, C.-H.

(2004) EMBO J 23: 2185-2195

  • DOI: 10.1038/sj.emboj.7600212
  • Primary Citation of Related Structures:  
    1UKI, 1UKH

  • PubMed Abstract: 
  • The c-jun N-terminal kinase (JNK) signaling pathway is regulated by JNK-interacting protein-1 (JIP1), which is a scaffolding protein assembling the components of the JNK cascade. Overexpression of JIP1 deactivates the JNK pathway selectively by cytoplasmic retention of JNK and thereby inhibits gene expression mediated by JNK, which occurs in the nucleus ...

    The c-jun N-terminal kinase (JNK) signaling pathway is regulated by JNK-interacting protein-1 (JIP1), which is a scaffolding protein assembling the components of the JNK cascade. Overexpression of JIP1 deactivates the JNK pathway selectively by cytoplasmic retention of JNK and thereby inhibits gene expression mediated by JNK, which occurs in the nucleus. Here, we report the crystal structure of human JNK1 complexed with pepJIP1, the peptide fragment of JIP1, revealing its selectivity for JNK1 over other MAPKs and the allosteric inhibition mechanism. The van der Waals contacts by the three residues (Pro157, Leu160, and Leu162) of pepJIP1 and the hydrogen bonding between Glu329 of JNK1 and Arg156 of pepJIP1 are critical for the selective binding. Binding of the peptide also induces a hinge motion between the N- and C-terminal domains of JNK1 and distorts the ATP-binding cleft, reducing the affinity of the kinase for ATP. In addition, we also determined the ternary complex structure of pepJIP1-bound JNK1 complexed with SP600125, an ATP-competitive inhibitor of JNK, providing the basis for the JNK specificity of the compound.


    Organizational Affiliation

    The Division of Drug Discovery, CrystalGenomics, Inc., Daeduk Biocommunity, Jeonmin-dong, Daejon, Korea.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 8 isoform 4A369Homo sapiensMutation(s): 0 
Gene Names: MAPK8JNK1PRKM8SAPK1SAPK1C
EC: 2.7.1.37 (PDB Primary Data), 2.7.11.24 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P45983 (Homo sapiens)
Explore P45983 
Go to UniProtKB:  P45983
PHAROS:  P45983
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
11-mer peptide from C-jun-amino-terminal kinase interacting protein 1B11N/AMutation(s): 0 
UniProt
Find proteins for Q9WVI9 (Mus musculus)
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Go to UniProtKB:  Q9WVI9
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.226 
  • R-Value Observed: 0.226 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.398α = 90
b = 80.841β = 90
c = 83.742γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-08-30
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance