4B7T

Glycogen Synthase Kinase 3 Beta complexed with Axin Peptide and Leucettine L4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.772 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Selectivity, Cocrystal Structures, and Neuroprotective Properties of Leucettines, a Family of Protein Kinase Inhibitors Derived from the Marine Sponge Alkaloid Leucettamine B.

Tahtouh, T.Elkins, J.M.Filippakopoulos, P.Soundararajan, M.Burgy, G.Durieu, E.Cochet, C.Schmid, R.S.Lo, D.C.Delhommel, F.Oberholzer, A.E.Pearl, L.H.Carreaux, F.Bazureau, J.Knapp, S.Meijer, L.

(2012) J.Med.Chem. 55: 9312

  • DOI: 10.1021/jm301034u
  • Primary Citation of Related Structures:  4AZE, 4AZF, 4GW8

  • PubMed Abstract: 
  • DYRKs (dual specificity, tyrosine phosphorylation regulated kinases) and CLKs (cdc2-like kinases) are implicated in the onset and development of Alzheimer's disease and Down syndrome. The marine sponge alkaloid leucettamine B was recently identified ...

    DYRKs (dual specificity, tyrosine phosphorylation regulated kinases) and CLKs (cdc2-like kinases) are implicated in the onset and development of Alzheimer's disease and Down syndrome. The marine sponge alkaloid leucettamine B was recently identified as an inhibitor of DYRKs/CLKs. Synthesis of analogues (leucettines) led to an optimized product, leucettine L41. Leucettines were cocrystallized with DYRK1A, DYRK2, CLK3, PIM1, and GSK-3β. The selectivity of L41 was studied by activity and interaction assays of recombinant kinases and affinity chromatography and competition affinity assays. These approaches revealed unexpected potential secondary targets such as CK2, SLK, and the lipid kinase PIKfyve/Vac14/Fig4. L41 displayed neuroprotective effects on glutamate-induced HT22 cell death. L41 also reduced amyloid precursor protein-induced cell death in cultured rat brain slices. The unusual multitarget selectivity of leucettines may account for their neuroprotective effects. This family of kinase inhibitors deserves further optimization as potential therapeutics against neurodegenerative diseases such as Alzheimer's disease.


    Organizational Affiliation

    CNRS, "Protein Phosphorylation & Human Disease" Group, Station Biologique, 29680 Roscoff, Bretagne, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GLYCOGEN SYNTHASE KINASE-3 BETA
A
350Homo sapiensGene Names: GSK3B
EC: 2.7.11.1, 2.7.11.26
Find proteins for P49841 (Homo sapiens)
Go to Gene View: GSK3B
Go to UniProtKB:  P49841
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
AXIN-1
B
18Homo sapiensGene Names: AXIN1 (AXIN)
Find proteins for O15169 (Homo sapiens)
Go to Gene View: AXIN1
Go to UniProtKB:  O15169
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CWT
Query on CWT

Download SDF File 
Download CCD File 
A
(5Z)-5-(1,3-benzodioxol-5-ylmethylidene)-3-methyl-2-(propan-2-ylamino)imidazol-4-one
Leucettine L4
C15 H17 N3 O3
ILLXEUXWCCUOCH-WDZFZDKYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.772 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.195 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 81.577α = 90.00
b = 81.577β = 90.00
c = 283.654γ = 120.00
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-01-30
    Type: Initial release