3QRB

crystal structure of E-cadherin EC1-2 P5A P6A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.162 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular design principles underlying beta-strand swapping in the adhesive dimerization of cadherins.

Vendome, J.Posy, S.Jin, X.Bahna, F.Ahlsen, G.Shapiro, L.Honig, B.

(2011) Nat.Struct.Mol.Biol. 18: 693-700

  • DOI: 10.1038/nsmb.2051

  • PubMed Abstract: 
  • Cell adhesion by classical cadherins is mediated by dimerization of their EC1 domains through the 'swapping' of N-terminal β-strands. We use molecular simulations, measurements of binding affinities and X-ray crystallography to provide a detailed pic ...

    Cell adhesion by classical cadherins is mediated by dimerization of their EC1 domains through the 'swapping' of N-terminal β-strands. We use molecular simulations, measurements of binding affinities and X-ray crystallography to provide a detailed picture of the structural and energetic factors that control the adhesive dimerization of cadherins. We show that strand swapping in EC1 is driven by conformational strain in cadherin monomers that arises from the anchoring of their short N-terminal strand at one end by the conserved Trp2 and at the other by ligation to Ca(2+) ions. We also demonstrate that a conserved proline-proline motif functions to avoid the formation of an overly tight interface where affinity differences between different cadherins, crucial at the cellular level, are lost. We use these findings to design site-directed mutations that transform a monomeric EC2-EC3 domain cadherin construct into a strand-swapped dimer.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biophysics, Columbia University, New York, New York, USA. Center for Computational Biology and Bioinformatics, Columbia University, New York, New York, USA. Howard Hughes Medical Institute, Columbia University, New York, New York, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cadherin-1
A, B
213Mus musculusMutation(s): 2 
Gene Names: Cdh1
Find proteins for P09803 (Mus musculus)
Go to UniProtKB:  P09803
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

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

Download SDF File 
Download CCD File 
A, B
TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.162 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 111.185α = 90.00
b = 92.583β = 92.26
c = 79.465γ = 90.00
Software Package:
Software NamePurpose
ADSCdata collection
REFMACrefinement
SCALEPACKdata scaling
MOLREPphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2011-02-17 
  • Released Date: 2011-05-18 
  • Deposition Author(s): Jin, X., Shapiro, L.

Revision History 

  • Version 1.0: 2011-05-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2015-12-09
    Type: Database references