3ML6

a complex between Dishevelled2 and clathrin adaptor AP-2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.335 
  • R-Value Work: 0.308 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Structural analysis of the interaction between Dishevelled2 and clathrin AP-2 adaptor, a critical step in noncanonical Wnt signaling.

Yu, A.Xing, Y.Harrison, S.C.Kirchhausen, T.

(2010) Structure 18: 1311-1320

  • DOI: 10.1016/j.str.2010.07.010

  • PubMed Abstract: 
  • Wnt association with its receptor, Frizzled (Fz), and recruitment by the latter of an adaptor, Dishevelled (Dvl), initiates signaling through at least two distinct pathways ("canonical" and "noncanonical"). Endocytosis and compartmentalization help d ...

    Wnt association with its receptor, Frizzled (Fz), and recruitment by the latter of an adaptor, Dishevelled (Dvl), initiates signaling through at least two distinct pathways ("canonical" and "noncanonical"). Endocytosis and compartmentalization help determine the signaling outcome. Our previous work has shown that Dvl2 links at least one Frizzled family member (Fz4) to clathrin-mediated endocytosis by interacting with the μ2 subunit of the AP-2 clathrin adaptor, through both a classical endocytic tyrosine motif and a so-called "DEP domain." We report here the crystal structure of a chimeric protein that mimics the Dvl2-μ2 complex. The DEP domain binds at one end of the elongated, C-terminal domain of μ2. This domain:domain interface shows that parts of the μ2 surface distinct from the tyrosine-motif site can help recruit specific receptors or adaptors into a clathrin coated pit. Mutation of residues at the DEP-μ2 contact or in the tyrosine motif reduce affinity of Dvl2 for μ2 and block efficient internalization of Fz4 in response to ligation by Wnt5a. The crystal structure has thus allowed us to identify the specific interaction that leads to Frizzled uptake and to downstream, noncanonical signaling events.


    Organizational Affiliation

    Department of Cell Biology and Immune Disease Institute, Harvard Medical School, Boston, MA 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Chimeric complex between protein Dishevelled2 homolog dvl-2 and clathrin adaptor AP-2 complex subunit mu
A, B, C, D, E, F
385Rattus norvegicusMus musculus
This entity is chimeric
Mutation(s): 0 
Gene Names: Ap2m1, Dvl2
Find proteins for P84092 (Rattus norvegicus)
Go to UniProtKB:  P84092
Find proteins for Q60838 (Mus musculus)
Go to UniProtKB:  Q60838
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.335 
  • R-Value Work: 0.308 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 292.371α = 90.00
b = 98.137β = 121.97
c = 171.322γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHASERphasing
HKL-2000data collection
CNSrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-08-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-08-09
    Type: Refinement description, Source and taxonomy
  • Version 1.3: 2018-01-24
    Type: Refinement description
  • Version 1.4: 2018-12-26
    Type: Data collection, Structure summary