1G3J

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

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.229 

wwPDB Validation   3D Report Full Report


This is version 1.3 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

  • DOI: https://doi.org/10.1016/s0092-8674(00)00192-6
  • Primary Citation of Related Structures:  
    1G3J

  • 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-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
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BETA-CATENIN ARMADILLO REPEAT REGION
A, C
532Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P35222 (Homo sapiens)
Explore P35222 
Go to UniProtKB:  P35222
PHAROS:  P35222
GTEx:  ENSG00000168036 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP35222
Sequence Annotations
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  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
TCF3-CBD (CATENIN BINDING DOMAIN)
B, D
61Xenopus laevisMutation(s): 0 
UniProt
Find proteins for P70062 (Xenopus laevis)
Explore P70062 
Go to UniProtKB:  P70062
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP70062
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 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
b = 153.249β = 90
c = 188.124γ = 90
Software Package:
Software NamePurpose
AMoREphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-12-11
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-07
    Changes: Data collection, Database references