4LN2

The second SH3 domain from CAP/Ponsin in complex with proline rich peptide from Vinculin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1 Å
  • R-Value Free: 0.152 
  • R-Value Work: 0.139 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural investigation of the interaction between the tandem SH3 domains of c-Cbl-associated protein and vinculin

Zhao, D.Wang, X.Peng, J.Wang, C.Li, F.Sun, Q.Zhang, Y.Zhang, J.Cai, G.Zuo, X.Wu, J.Shi, Y.Zhang, Z.Gong, Q.

(2014) J.Struct.Biol. 187: 194-205

  • DOI: 10.1016/j.jsb.2014.05.009
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • c-Cbl-associated protein (CAP) is an important cytoskeletal adaptor protein involved in the regulation of adhesion turnover. The interaction between CAP and vinculin is critical for the recruitment of CAP to focal adhesions. The tandem SH3 domains (h ...

    c-Cbl-associated protein (CAP) is an important cytoskeletal adaptor protein involved in the regulation of adhesion turnover. The interaction between CAP and vinculin is critical for the recruitment of CAP to focal adhesions. The tandem SH3 domains (herein termed SH3a and SH3b) of CAP are responsible for its interaction with vinculin. However, the structural mechanism underlying the interaction between CAP and vinculin is poorly understood. In this manuscript, we report the solution structure of the tandem SH3 domains of CAP. Our NMR and ITC data indicate that the SH3a and SH3b domains of CAP simultaneously bind to a long proline-rich region of vinculin with different binding specificities. Furthermore, the crystal structures of the individual SH3a and SH3b domains complexed with their substrate peptides indicate that Q807(SH3a) and D881(SH3b) are the critical residues determining the different binding specificities of the SH3 domains. Based on the obtained structural information, a model of the SH3ab-vinculin complex was generated using MD simulation and SAXS data.


    Organizational Affiliation

    Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Sorbin and SH3 domain-containing protein 1
A
68Homo sapiensMutation(s): 0 
Gene Names: SORBS1 (KIAA0894, KIAA1296, SH3D5)
Find proteins for Q9BX66 (Homo sapiens)
Go to Gene View: SORBS1
Go to UniProtKB:  Q9BX66
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
proline rich peptide
B
11Homo sapiensMutation(s): 0 
Gene Names: VCL
Find proteins for P18206 (Homo sapiens)
Go to Gene View: VCL
Go to UniProtKB:  P18206
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1 Å
  • R-Value Free: 0.152 
  • R-Value Work: 0.139 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 28.870α = 90.00
b = 45.850β = 90.00
c = 52.860γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PHASESphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-05-28
    Type: Initial release
  • Version 1.1: 2014-06-04
    Type: Derived calculations
  • Version 1.2: 2014-12-10
    Type: Database references