1G3J

CRYSTAL STRUCTURE OF THE XTCF3-CBD/BETA-CATENIN ARMADILLO REPEAT COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of a beta-catenin/Tcf complex.

Graham, T.A.Weaver, C.Mao, F.Kimelman, D.Xu, W.

(2000) Cell 103: 885-896


  • PubMed Abstract: 
  • The Wnt signaling pathway plays critical roles in embryonic development and tumorigenesis. Stimulation of the Wnt pathway results in the accumulation of a nuclear beta-catenin/Tcf complex, activating Wnt target genes. A crystal structure of beta-cate ...

    The Wnt signaling pathway plays critical roles in embryonic development and tumorigenesis. Stimulation of the Wnt pathway results in the accumulation of a nuclear beta-catenin/Tcf complex, activating Wnt target genes. A crystal structure of beta-catenin bound to the beta-catenin binding domain of Tcf3 (Tcf3-CBD) has been determined. The Tcf3-CBD forms an elongated structure with three binding modules that runs antiparallel to beta-catenin along the positively charged groove formed by the armadillo repeats. Structure-based mutagenesis defines three sites in beta-catenin that are critical for binding the Tcf3-CBD and are differentially involved in binding APC, cadherin, and Axin. The structural and mutagenesis data reveal a potential target for molecular drug design studies.


    Organizational Affiliation

    Department of Biological Structure University of Washington 98195, Seattle, WA, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BETA-CATENIN ARMADILLO REPEAT REGION
A, C
532Homo sapiensMutation(s): 0 
Gene Names: CTNNB1 (CTNNB)
Find proteins for P35222 (Homo sapiens)
Go to Gene View: CTNNB1
Go to UniProtKB:  P35222
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TCF3-CBD (CATENIN BINDING DOMAIN)
B, D
61Xenopus laevisMutation(s): 0 
Gene Names: tcf7l1-a (tcf3, tcf3a)
Find proteins for P70062 (Xenopus laevis)
Go to UniProtKB:  P70062
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.229 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 52.135α = 90.00
b = 153.249β = 90.00
c = 188.124γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSrefinement
AMoREphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-12-11
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance