Crystal structure of S287D,T291D MKK7 (MAP2K7), apo form

Experimental Data Snapshot

  • Resolution: 2.00 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Catalytic Domain Plasticity of MKK7 Reveals Structural Mechanisms of Allosteric Activation and Diverse Targeting Opportunities.

Schroder, M.Tan, L.Wang, J.Liang, Y.Gray, N.S.Knapp, S.Chaikuad, A.

(2020) Cell Chem Biol 27: 1285-1295.e4

  • DOI: https://doi.org/10.1016/j.chembiol.2020.07.014
  • Primary Citation of Related Structures:  
    6YFZ, 6YG0, 6YG1, 6YG2, 6YG3, 6YG4, 6YG5, 6YG6, 6YG7, 6YZ4

  • PubMed Abstract: 

    MKK7 (MEK7) is a key regulator of the JNK stress signaling pathway and targeting MKK7 has been proposed as a chemotherapeutic strategy. Detailed understanding of the MKK7 structure and factors that affect its activity is therefore of critical importance. Here, we present a comprehensive set of MKK7 crystal structures revealing insights into catalytic domain plasticity and the role of the N-terminal regulatory helix, conserved in all MAP2Ks, mediating kinase activation. Crystal structures harboring this regulatory helix revealed typical structural features of active kinase, providing exclusively a first model of the MAP2K active state. A small-molecule screening campaign yielded multiple scaffolds, including type II irreversible inhibitors a binding mode that has not been reported previously. We also observed an unprecedented allosteric pocket located in the N-terminal lobe for the approved drug ibrutinib. Collectively, our structural and functional data expand and provide alternative targeting strategies for this important MAP2K kinase.

  • Organizational Affiliation

    Institute of Pharmaceutical Chemistry, Goethe-University Frankfurt, Frankfurt 60438, Germany; Structural Genomics Consortium, BMLS, Goethe-University Frankfurt, Frankfurt 60438, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Dual specificity mitogen-activated protein kinase kinase 7307Homo sapiensMutation(s): 2 
UniProt & NIH Common Fund Data Resources
Find proteins for O14733 (Homo sapiens)
Explore O14733 
Go to UniProtKB:  O14733
PHAROS:  O14733
GTEx:  ENSG00000076984 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO14733
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.00 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.37α = 90
b = 69.79β = 90
c = 84.64γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
PDB_EXTRACTdata extraction
iMOSFLMdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-08-12
    Type: Initial release
  • Version 1.1: 2020-09-02
    Changes: Database references
  • Version 1.2: 2020-10-28
    Changes: Database references
  • Version 1.3: 2024-01-24
    Changes: Data collection, Database references, Refinement description