1DOV

CRYSTAL STRUCTURE OF THE ALPHA-CATENIN DIMERIZATION DOMAIN

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.218 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Structure of the dimerization and beta-catenin-binding region of alpha-catenin.

Pokutta, S., Weis, W.I.

(2000) Mol Cell 5: 533-543

  • DOI: 10.1016/s1097-2765(00)80447-5
  • Primary Citation of Related Structures:  
    1DOV, 1DOW

  • PubMed Abstract: 

    • In adherens junctions, alpha-catenin links the cadherin-beta-catenin complex to the actin-based cytoskeleton. alpha-catenin is a homodimer in solution, but forms a 1:1 heterodimer with beta-catenin. The crystal structure of the alpha-catenin dimerization domain, residues 82-279, shows that alpha-catenin dimerizes through formation of a four-helix bundle in which two antiparallel helices are contributed by each protomer ...

    In adherens junctions, alpha-catenin links the cadherin-beta-catenin complex to the actin-based cytoskeleton. alpha-catenin is a homodimer in solution, but forms a 1:1 heterodimer with beta-catenin. The crystal structure of the alpha-catenin dimerization domain, residues 82-279, shows that alpha-catenin dimerizes through formation of a four-helix bundle in which two antiparallel helices are contributed by each protomer. A slightly larger fragment, comprising residues 57-264, binds to beta-catenin. A chimera consisting of the alpha-catenin-binding region of beta-catenin linked to the amino terminus of alpha-catenin 57-264 behaves as a monomer in solution, as expected, since beta-catenin binding disrupts the alpha-catenin dimer. The crystal structure of this chimera reveals the interaction between alpha- and beta-catenin, and provides a basis for understanding adherens junction assembly.

    Organizational Affiliation: 

    Department of Structural Biology, Stanford University School of Medicine, California 94305, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ALPHA-CATENINA181Mus musculusMutation(s): 0 
Gene Names: Ctnna1, Catna1
UniProt
Find proteins for P26231 (Mus musculus)
Explore P26231 
Go to UniProtKB:  P26231
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP26231
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.218 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 136.46α = 90
b = 136.46β = 90
c = 118.17γ = 120
Software Package:
Software NamePurpose
DMmodel building
CNSrefinement
MOSFLMdata reduction
CCP4data scaling
DMphasing

Structure Validation

View Full Validation Report



View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

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