Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

 3D View: Structure | Electron Density

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 19.88 kDa 
• Atom Count: 1389 
• Residue Count: 181 
• Unique protein chains: 1

1DOV

CRYSTAL STRUCTURE OF THE ALPHA-CATENIN DIMERIZATION DOMAIN

• DOI: 10.2210/pdb1DOV/pdb

• Classification: CELL ADHESION
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-12-21 Released: 2000-07-12 
• Deposition Author(s): Pokutta, S., Weis, W.I.

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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 

Literature

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

Pokutta, S., Weis, W.I.

(2000) Mol Cell 5: 533-543

• PubMed: 10882138 
• DOI: 10.1016/s1097-2765(00)80447-5
• Primary Citation of Related Structures:  
  1DOW, 1DOV


• 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. 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ALPHA-CATENIN	A	181	Mus musculus	Mutation(s): 0  Gene Names: Ctnna1, Catna1
Find proteins for P26231 (Mus musculus) Explore P26231  Go to UniProtKB:  P26231

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 = 136.46	α = 90
b = 136.46	β = 90
c = 118.17	γ = 120

Software Package:

Software Name	Purpose
DM	model building
CNS	refinement
MOSFLM	data reduction
CCP4	data scaling
DM	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1999-12-21 
• Released Date: 2000-07-12 
Deposition Author(s): Pokutta, S., Weis, W.I.

Revision History 

• 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