Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | Electron Density

Global Symmetry: Cyclic - C4  (3D View)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 70.42 kDa 
• Atom Count: 4058 
• Residue Count: 533 
• Unique protein chains: 1

2Z6H

Crystal Structure of Beta-Catenin Armadillo Repeat Region and Its C-Terminal domain

• DOI: 10.2210/pdb2Z6H/pdb

• Classification: CELL ADHESION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2007-08-01 Released: 2008-02-12 
• Deposition Author(s): Xing, Y., Takemaru, K., Liu, J., Zheng, J., Moon, R., Xu, W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.249 
• R-Value Work: 0.213 
• R-Value Observed: 0.213 

Literature

Crystal Structure of a Full-Length beta-Catenin

Xing, Y., Takemaru, K., Liu, J., Berndt, J.D., Zheng, J.J., Moon, R.T., Xu, W.

(2008) Structure 16: 478-487

• PubMed: 18334222 
• DOI: 10.1016/j.str.2007.12.021
• Primary Citation of Related Structures:  
  2Z6G, 2Z6H


• PubMed Abstract: 
  

beta-catenin plays essential roles in cell adhesion and Wnt signaling, while deregulation of beta-catenin is associated with multiple diseases including cancers. Here, we report the crystal structures of full-length zebrafish beta-catenin and a human beta-catenin fragment that contains both the armadillo repeat and the C-terminal domains. Our structures reveal that the N-terminal region of the C-terminal domain, a key component of the C-terminal transactivation domain, forms a long alpha helix that packs on the C-terminal end of the armadillo repeat domain, and thus forms part of the beta-catenin superhelical core. The existence of this helix redefines our view of interactions of beta-catenin with some of its critical partners, including ICAT and Chibby, which may form extensive interactions with this C-terminal domain alpha helix. Our crystallographic and NMR studies also suggest that the unstructured N-terminal and C-terminal tails interact with the ordered armadillo repeat domain in a dynamic and variable manner.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Catenin beta-1	A	644	Homo sapiens	Mutation(s): 0  Gene Names: CTNNB1, CTNNB, OK/SW-cl.35, PRO2286
Find proteins for P35222 (Homo sapiens) Explore P35222  Go to UniProtKB:  P35222
NIH Common Fund Data Resources
PHAROS:  P35222 GTEx:  ENSG00000168036

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.249 
• R-Value Work: 0.213 
• R-Value Observed: 0.213 
• Space Group: I 4 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.229	α = 90
b = 104.229	β = 90
c = 259.391	γ = 90

Software Package:

Software Name	Purpose
SOLVE	phasing
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2007-08-01 
• Released Date: 2008-02-12 
Deposition Author(s): Xing, Y., Takemaru, K., Liu, J., Zheng, J., Moon, R., Xu, W.

Revision History 

• Version 1.0: 2008-02-12
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance