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

Experimental Data Snapshot

  • Resolution: 1.84 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.220 

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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: https://doi.org/10.1016/j.molcel.2016.08.026
  • Primary Citation of Related Structures:  
    5LNP, 5SUY, 5SUZ

  • 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 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.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Segment polarity protein dishevelled homolog DVL-2
A, B
95Homo sapiensMutation(s): 0 
Gene Names: DVL2
UniProt & NIH Common Fund Data Resources
Find proteins for O14641 (Homo sapiens)
Explore O14641 
Go to UniProtKB:  O14641
PHAROS:  O14641
GTEx:  ENSG00000004975 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO14641
Sequence Annotations
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
Query on MSE
A, B
Experimental Data & Validation

Experimental Data

  • Resolution: 1.84 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.220 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 117.785α = 90
b = 59.601β = 93.64
c = 30.322γ = 90
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
Cootmodel building
MxCuBEdata collection
XDSdata reduction
XSCALEdata scaling
Aimlessdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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