4K1N

Crystal structure of full-length mouse alphaE-catenin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 6.50 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

An autoinhibited structure of alpha-catenin and its implications for vinculin recruitment to adherens junctions.

Ishiyama, N.Tanaka, N.Abe, K.Yang, Y.J.Abbas, Y.M.Umitsu, M.Nagar, B.Bueler, S.A.Rubinstein, J.L.Takeichi, M.Ikura, M.

(2013) J Biol Chem 288: 15913-15925

  • DOI: 10.1074/jbc.M113.453928
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • α-Catenin is an actin- and vinculin-binding protein that regulates cell-cell adhesion by interacting with cadherin adhesion receptors through β-catenin, but the mechanisms by which it anchors the cadherin-catenin complex to the actin cytoskeleton at ...

    α-Catenin is an actin- and vinculin-binding protein that regulates cell-cell adhesion by interacting with cadherin adhesion receptors through β-catenin, but the mechanisms by which it anchors the cadherin-catenin complex to the actin cytoskeleton at adherens junctions remain unclear. Here we determined crystal structures of αE-catenin in the autoinhibited state and the actin-binding domain of αN-catenin. Together with the small-angle x-ray scattering analysis of full-length αN-catenin, we deduced an elongated multidomain assembly of monomeric α-catenin that structurally and functionally couples the vinculin- and actin-binding mechanisms. Cellular and biochemical studies of αE- and αN-catenins show that αE-catenin recruits vinculin to adherens junctions more effectively than αN-catenin, partly because of its higher affinity for actin filaments. We propose a molecular switch mechanism involving multistate conformational changes of α-catenin. This would be driven by actomyosin-generated tension to dynamically regulate the vinculin-assisted linkage between adherens junctions and the actin cytoskeleton.


    Organizational Affiliation

    Campbell Family Cancer Research Institute, Ontario Cancer Institute, Toronto, Ontario M5G 1L7, Canada.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Catenin alpha-1A, B912Mus musculusMutation(s): 0 
Gene Names: Catna1Ctnna1
Find proteins for P26231 (Mus musculus)
Explore P26231 
Go to UniProtKB:  P26231
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 6.50 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.224 
  • Space Group: P 32
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 144.684α = 90
b = 144.684β = 90
c = 136.757γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
HKL-3000data collection
HKL-2000data reduction
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-05-01
    Type: Initial release
  • Version 1.1: 2013-09-04
    Changes: Database references
  • Version 1.2: 2017-11-15
    Changes: Refinement description