2LSW

Structure, sulfatide-binding properties, and inhibition of platelet aggregation by a Disabled-2-derived peptide


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure, Sulfatide Binding Properties, and Inhibition of Platelet Aggregation by a Disabled-2 Protein-derived Peptide.

Xiao, S.Charonko, J.J.Fu, X.Salmanzadeh, A.Davalos, R.V.Vlachos, P.P.Finkielstein, C.V.Capelluto, D.G.

(2012) J.Biol.Chem. 287: 37691-37702

  • DOI: 10.1074/jbc.M112.385609

  • PubMed Abstract: 
  • Disabled-2 (Dab2) targets membranes and triggers a wide range of biological events, including endocytosis and platelet aggregation. Dab2, through its phosphotyrosine-binding (PTB) domain, inhibits platelet aggregation by competing with fibrinogen for ...

    Disabled-2 (Dab2) targets membranes and triggers a wide range of biological events, including endocytosis and platelet aggregation. Dab2, through its phosphotyrosine-binding (PTB) domain, inhibits platelet aggregation by competing with fibrinogen for α(IIb)β(3) integrin receptor binding. We have recently shown that the N-terminal region, including the PTB domain (N-PTB), drives Dab2 to the platelet membrane surface by binding to sulfatides through two sulfatide-binding motifs, modulating the extent of platelet aggregation. The three-dimensional structure of a Dab2-derived peptide encompassing the sulfatide-binding motifs has been determined in dodecylphosphocholine micelles using NMR spectroscopy. Dab2 sulfatide-binding motif contains two helices when embedded in micelles, reversibly binds to sulfatides with moderate affinity, lies parallel to the micelle surface, and when added to a platelet mixture, reduces the number and size of sulfatide-induced aggregates. Overall, our findings identify and structurally characterize a minimal region in Dab2 that modulates platelet homotypic interactions, all of which provide the foundation for rational design of a new generation of anti-aggregatory low-molecular mass molecules for therapeutic purposes.


    Organizational Affiliation

    Protein Signaling Domains Laboratory, Department of Biological Sciences, Virginia Tech, 1981 Kraft Dr., Rm. 2007, Blacksburg, VA 24061, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Disabled homolog 2
A
40Homo sapiensMutation(s): 0 
Gene Names: DAB2 (DOC2)
Find proteins for P98082 (Homo sapiens)
Go to Gene View: DAB2
Go to UniProtKB:  P98082
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2LSW Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2012-05-08 
  • Released Date: 2012-09-19 
  • Deposition Author(s): Xiao, S.

Revision History 

  • Version 1.0: 2012-09-19
    Type: Initial release
  • Version 1.1: 2012-09-26
    Type: Database references
  • Version 1.2: 2012-11-21
    Type: Database references