3F7R

First pair of Fibronectin type III domains and part of the connecting segment of the integrin beta4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.036 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.176 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural basis of the interaction between integrin alpha6beta4 and plectin at the hemidesmosomes

de Pereda, J.M.Lillo, M.P.Sonnenberg, A.

(2009) Embo J. 28: 1180-1190

  • DOI: 10.1038/emboj.2009.48
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The interaction between the integrin alpha6beta4 and plectin is essential for the assembly and stability of hemidesmosomes, which are junctional adhesion complexes that anchor epithelial cells to the basement membrane. We describe the crystal structu ...

    The interaction between the integrin alpha6beta4 and plectin is essential for the assembly and stability of hemidesmosomes, which are junctional adhesion complexes that anchor epithelial cells to the basement membrane. We describe the crystal structure at 2.75 A resolution of the primary alpha6beta4-plectin complex, formed by the first pair of fibronectin type III domains and the N-terminal region of the connecting segment of beta4 and the actin-binding domain of plectin. Two missense mutations in beta4 (R1225H and R1281W) linked to nonlethal forms of epidermolysis bullosa prevent essential intermolecular contacts. We also present two structures at 1.75 and 2.05 A resolution of the beta4 moiety in the absence of plectin, which reveal a major rearrangement of the connecting segment of beta4 on binding to plectin. This conformational switch is correlated with the way alpha6beta4 promotes stable adhesion or cell migration and suggests an allosteric control of the integrin.


    Organizational Affiliation

    Department of Structural Biology, Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas-Universidad de Salamanca, Campus Unamuno, Salamanca, Spain. pereda@usal.es




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Integrin beta-4
A
249Homo sapiensMutation(s): 0 
Gene Names: ITGB4
Find proteins for P16144 (Homo sapiens)
Go to Gene View: ITGB4
Go to UniProtKB:  P16144
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

Download SDF File 
Download CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.036 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.176 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 137.500α = 90.00
b = 42.150β = 109.92
c = 56.910γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
MAR345dtbdata collection
PHASERphasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2008-11-10 
  • Released Date: 2009-03-10 
  • Deposition Author(s): de Pereda, J.M.

Revision History 

  • Version 1.0: 2009-03-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance