2CLQ

Structure of mitogen-activated protein kinase kinase kinase 5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.204 

Starting Model: in silico
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This is version 1.3 of the entry. See complete history


Literature

Structural and Functional Characterization of the Human Protein Kinase Ask1.

Bunkoczi, G.Salah, E.Filippakopoulos, P.Fedorov, O.Muller, S.Sobott, F.Parker, S.A.Zhang, H.Min, W.Turk, B.E.Knapp, S.

(2007) Structure 15: 1215

  • DOI: https://doi.org/10.1016/j.str.2007.08.011
  • Primary Citation of Related Structures:  
    2CLQ

  • PubMed Abstract: 

    Apoptosis signal-regulating kinase 1 (ASK1) plays an essential role in stress and immune response and has been linked to the development of several diseases. Here, we present the structure of the human ASK1 catalytic domain in complex with staurosporine. Analytical ultracentrifugation (AUC) and crystallographic analysis showed that ASK1 forms a tight dimer (K(d) approximately 0.2 microM) interacting in a head-to-tail fashion. We found that the ASK1 phosphorylation motifs differ from known ASK1 phosphorylation sites but correspond well to autophosphorylation sites identified by mass spectrometry. Reporter gene assays showed that all three identified in vitro autophosphorylation sites (Thr813, Thr838, Thr842) regulate ASK1 signaling, but site-directed mutants showed catalytic activities similar to wild-type ASK1, suggesting a regulatory mechanism independent of ASK1 kinase activity. The determined high-resolution structure of ASK1 and identified ATP mimetic inhibitors will provide a first starting point for the further development of selective inhibitors.


  • Organizational Affiliation

    University of Oxford, Structural Genomics Consortium, Botnar Research Centre, Oxford OX3 7LD, United Kingdom.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
MITOGEN-ACTIVATED PROTEIN KINASE KINASE KINASE 5
A, B
295Homo sapiensMutation(s): 0 
EC: 2.7.11.25
UniProt & NIH Common Fund Data Resources
Find proteins for Q99683 (Homo sapiens)
Explore Q99683 
Go to UniProtKB:  Q99683
PHAROS:  Q99683
GTEx:  ENSG00000197442 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ99683
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.204 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.606α = 90
b = 78.606β = 90
c = 423.279γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-05-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Refinement description, Version format compliance
  • Version 1.2: 2018-01-24
    Changes: Structure summary
  • Version 1.3: 2024-05-01
    Changes: Data collection, Database references, Other, Refinement description