MAP4K4 in complex with a pyridin-2(1H)-one derivative

Experimental Data Snapshot

  • Resolution: 2.40 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.212 

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This is version 1.2 of the entry. See complete history


Neuritogenic Militarinone-Inspired 4-Hydroxypyridones Target the Stress Pathway Kinase MAP4K4.

Schroder, P.Forster, T.Kleine, S.Becker, C.Richters, A.Ziegler, S.Rauh, D.Kumar, K.Waldmann, H.

(2015) Angew Chem Int Ed Engl 54: 12398-12403

  • DOI: https://doi.org/10.1002/anie.201501515
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Progressive loss and impaired restoration of neuronal activity are hallmarks of neurological diseases, and new small molecules with neurotrophic activity are in high demand. The militarinone alkaloids and structurally simplified analogues with 4-hydroxy-2-pyridone core structure induce pronounced neurite outgrowth, but their protein target has not been identified. Reported herein is the synthesis of a militarinone-inspired 4-hydroxy-2-pyridone collection, its investigation for enhancement of neurite outgrowth, and the discovery of the stress pathway kinase MAP4K4 as a target of the discovered neuritogenic pyridones. The most potent 4-hydroxy-2-pyridone is a selective ATP-competitive inhibitor of MAP4K4 but not of the other stress pathway related kinases, as proven by biochemical analysis and by a crystal structure of the inhibitor in complex with MAP4K4. The findings support the notion that MAP4K4 may be a new target for the treatment of neurodegenerative diseases.

  • Organizational Affiliation

    Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, 44227 Dortmund (Germany).

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Mitogen-activated protein kinase kinase kinase kinase 4
A, B
328Homo sapiensMutation(s): 0 
Gene Names: HGKKIAA0687MAP4K4NIK
UniProt & NIH Common Fund Data Resources
Find proteins for O95819 (Homo sapiens)
Explore O95819 
Go to UniProtKB:  O95819
PHAROS:  O95819
GTEx:  ENSG00000071054 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO95819
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on 3XM

Download Ideal Coordinates CCD File 
C [auth A]3-hexanoyl-4-hydroxy-5-(4-hydroxyphenyl)pyridin-2(1H)-one
C17 H19 N O4
Query on MES

Download Ideal Coordinates CCD File 
C6 H13 N O4 S
Experimental Data & Validation

Experimental Data

  • Resolution: 2.40 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.212 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.99α = 90
b = 90.25β = 90
c = 90.97γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PDB_EXTRACTdata extraction
XDSdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-05-27
    Type: Initial release
  • Version 1.1: 2015-10-21
    Changes: Database references, Other
  • Version 1.2: 2023-09-20
    Changes: Data collection, Database references, Derived calculations, Refinement description