1JPW

Crystal Structure of a Human Tcf-4 / beta-Catenin Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.390 
  • R-Value Work: 0.304 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of a human Tcf4-beta-catenin complex.

Poy, F.Lepourcelet, M.Shivdasani, R.A.Eck, M.J.

(2001) Nat.Struct.Mol.Biol. 8: 1053-1057

  • DOI: 10.1038/nsb720

  • PubMed Abstract: 
  • The multifunctional protein beta-catenin is important for cell adhesion, because it binds cadherins, and the Wnt signal transduction pathway, where it interacts with the Adenomatous polyposis coli (APC) protein and TCF/Lef family transcription factor ...

    The multifunctional protein beta-catenin is important for cell adhesion, because it binds cadherins, and the Wnt signal transduction pathway, where it interacts with the Adenomatous polyposis coli (APC) protein and TCF/Lef family transcription factors. Mutations in APC or in beta-catenin are estimated to trigger formation of over 90% of all colon cancers. In colonic epithelia, these mutations produce elevated levels of Tcf4-beta-catenin, which stimulates a transcriptional response that initiates polyp formation and eventually malignant growth. Thus, disruption of the Tcf4-beta-catenin interaction may be an attractive goal for therapeutic intervention. Here we describe the crystal structure of a human Tcf4-beta-catenin complex and compare it with recent structures of beta-catenin in complex with Xenopus Tcf3 (XTcf3) and mammalian E-cadherin. The structure reveals anticipated similarities with the closely related XTcf3 complex but unexpectedly lacks one component observed in the XTcf3 structure.


    Organizational Affiliation

    Department of Cancer Biology, Dana-Farber Cancer Institute, 44 Binney Street, Boston, Massachusetts 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BETA-CATENIN
A, B, C
540Homo 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
transcription factor 7-like 2
D, E, F
49Homo sapiensMutation(s): 0 
Gene Names: TCF7L2 (TCF4)
Find proteins for Q9NQB0 (Homo sapiens)
Go to Gene View: TCF7L2
Go to UniProtKB:  Q9NQB0
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.390 
  • R-Value Work: 0.304 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 376.530α = 90.00
b = 92.650β = 95.98
c = 49.250γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSphasing
CNSrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-12-05
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-01-31
    Type: Experimental preparation