1JPP

The Structure of a beta-Catenin Binding Repeat from Adenomatous Polyposis Coli (APC) in Complex with beta-Catenin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.234 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular mechanisms of beta-catenin recognition by adenomatous polyposis coli revealed by the structure of an APC-beta-catenin complex.

Eklof Spink, K.Fridman, S.G.Weis, W.I.

(2001) EMBO J. 20: 6203-6212

  • DOI: 10.1093/emboj/20.22.6203

  • PubMed Abstract: 
  • The adenomatous polyposis coli (APC) tumor suppressor protein plays a critical role in regulating cellular levels of the oncogene product beta-catenin. APC binds to beta-catenin through a series of homologous 15 and 20 amino acid repeats. We have det ...

    The adenomatous polyposis coli (APC) tumor suppressor protein plays a critical role in regulating cellular levels of the oncogene product beta-catenin. APC binds to beta-catenin through a series of homologous 15 and 20 amino acid repeats. We have determined the crystal structure of a 15 amino acid beta-catenin binding repeat from APC bound to the armadillo repeat region of beta-catenin. Although it lacks significant sequence homology, the N-terminal half of the repeat binds in a manner similar to portions of E-cadherin and XTcf3, but the remaining interactions are unique to APC. We discuss the implications of this new structure for the design of therapeutics, and present evidence from structural, biochemical and sequence data, which suggest that the 20 amino acid repeats can adopt two modes of binding to beta-catenin.


    Related Citations: 
    • THREE-DIMENSIONAL STRUCTURE OF THE ARMADILLO REPEAT REGION OF BETA-CATENIN
      Huber, A.H.,Nelson, W.J.,Weis, W.I.
      (1997) Cell 90: 871
    • The structure of the beta-catenin/E-cadherin complex and the molecular basis of diverse ligand recognition by beta-catenin
      Huber, A.H.,Weis, W.I.
      (2001) Cell 105: 391
    • CRYSTAL STRUCTURE OF A BETA-CATENIN/TCF COMPLEX
      Graham, T.A.,Weaver, C.,Mao, F.,Kimelman, D.,Xu, W.
      (2000) Cell 103: 885


    Organizational Affiliation

    Departments of Structural Biology and of Molecular and Cellular Physiology, Stanford University School of Medicine, 299 Campus Dr. West Stanford, CA 94305, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BETA-CATENIN
A, B
538Mus musculusMutation(s): 0 
Gene Names: Ctnnb1 (Catnb)
Find proteins for Q02248 (Mus musculus)
Go to UniProtKB:  Q02248
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
ADENOMATOUS POLYPOSIS COLI PROTEIN
C, D
15Homo sapiensMutation(s): 0 
Gene Names: APC (DP2.5)
Find proteins for P25054 (Homo sapiens)
Go to Gene View: APC
Go to UniProtKB:  P25054
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.234 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 51.090α = 68.70
b = 69.255β = 87.04
c = 95.099γ = 85.32
Software Package:
Software NamePurpose
DENZOdata reduction
CNSrefinement
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-01-16
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance