1O9U

GLYCOGEN SYNTHASE KINASE 3 BETA COMPLEXED WITH AXIN PEPTIDE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Basis for Recruitment of Glycogen Synthase Kinase 3Beta to the Axin-Apc Scaffold Complex

Dajani, R.Fraser, E.Roe, S.M.Yeo, M.Good, V.Thompson, V.Dale, T.C.Pearl, L.H.

(2003) Embo J. 22: 494

  • DOI: 10.1093/emboj/cdg068

  • PubMed Abstract: 
  • Glycogen synthase kinase 3beta (GSK3beta) is a serine/threonine kinase involved in insulin, growth factor and Wnt signalling. In Wnt signalling, GSK3beta is recruited to a multiprotein complex via interaction with axin, where it hyperphosphorylates b ...

    Glycogen synthase kinase 3beta (GSK3beta) is a serine/threonine kinase involved in insulin, growth factor and Wnt signalling. In Wnt signalling, GSK3beta is recruited to a multiprotein complex via interaction with axin, where it hyperphosphorylates beta-catenin, marking it for ubiquitylation and destruction. We have now determined the crystal structure of GSK3beta in complex with a minimal GSK3beta-binding segment of axin, at 2.4 A resolution. The structure confirms the co-localization of the binding sites for axin and FRAT in the C-terminal domain of GSK3beta, but reveals significant differences in the interactions made by axin and FRAT, mediated by conformational plasticity of the 285-299 loop in GSK3beta. Detailed comparison of the axin and FRAT GSK3beta complexes allows the generation of highly specific mutations, which abrogate binding of one or the other. Quantitative analysis suggests that the interaction of GSK3beta with the axin scaffold enhances phosphorylation of beta-catenin by >20 000-fold.


    Organizational Affiliation

    Section of Structural Biology and Cancer Research UK Centre for Cell and Molecular Biology, Institute of Cancer Research, Chester Beatty Laboratories, 237 Fulham Road, London SW3 6JB, UK.




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 PEPTIDE
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
ADZ
Query on ADZ

Download SDF File 
Download CCD File 
A
9-METHYL-9H-PURIN-6-AMINE
C6 H7 N5
WRXCXOUDSPTXNX-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
A
L-PEPTIDE LINKINGC9 H12 N O6 PTYR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.233 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 81.950α = 90.00
b = 81.950β = 90.00
c = 282.440γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
SCALAdata scaling
AMoREphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-08-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance