5SUZ

Domain-swapped dimer of human Dishevelled2 DEP domain: C-centered monoclinic crystal form crystallised from monomeric fraction


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.84 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Wnt Signalosome Assembly by DEP Domain Swapping of Dishevelled.

Gammons, M.V.Renko, M.Johnson, C.M.Rutherford, T.J.Bienz, M.

(2016) Mol.Cell 64: 92-104

  • DOI: 10.1016/j.molcel.2016.08.026
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Extracellular signals are often transduced by dynamic signaling complexes ("signalosomes") assembled by oligomerizing hub proteins following their recruitment to signal-activated transmembrane receptors. A paradigm is the Wnt signalosome, which is as ...

    Extracellular signals are often transduced by dynamic signaling complexes ("signalosomes") assembled by oligomerizing hub proteins following their recruitment to signal-activated transmembrane receptors. A paradigm is the Wnt signalosome, which is assembled by Dishevelled via reversible head-to-tail polymerization by its DIX domain. Its activity causes stabilization of β-catenin, a Wnt effector with pivotal roles in animal development and cancer. How Wnt triggers signalosome assembly is unknown. Here, we use structural analysis, as well as biophysical and cell-based assays, to show that the DEP domain of Dishevelled undergoes a conformational switch, from monomeric to swapped dimer, to trigger DIX-dependent polymerization and signaling to β-catenin. This occurs in two steps: binding of monomeric DEP to Frizzled followed by DEP domain swapping triggered by its high local concentration upon Wnt-induced recruitment into clathrin-coated pits. DEP domain swapping confers directional bias on signaling, and the dimerization provides cross-linking between Dishevelled polymers, illustrating a key principle underlying signalosome formation.


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, Francis Crick Avenue, Cambridge CB2 0QH, UK. Electronic address: melissag@mrc-lmb.cam.ac.uk.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Segment polarity protein dishevelled homolog DVL-2
A, B
95Homo sapiensMutation(s): 0 
Gene Names: DVL2
Find proteins for O14641 (Homo sapiens)
Go to Gene View: DVL2
Go to UniProtKB:  O14641
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.84 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.217 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 117.785α = 90.00
b = 59.601β = 93.64
c = 30.322γ = 90.00
Software Package:
Software NamePurpose
Cootmodel building
Aimlessdata scaling
PDB_EXTRACTdata extraction
MxCuBEdata collection
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-10-12
    Type: Initial release