4LN2

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.00 Å
  • R-Value Free: 0.152 
  • R-Value Work: 0.139 
  • R-Value Observed: 0.140 

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:  
    2MOX, 4LN2, 4LNP

  • 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 (herein termed SH3a and SH3b) of CAP are responsible for its interaction with vinculin ...

    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. Electronic address: qgg@ustc.edu.cn.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Sorbin and SH3 domain-containing protein 1A68Homo sapiensMutation(s): 0 
Gene Names: KIAA0894KIAA1296SH3D5SORBS1
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BX66 (Homo sapiens)
Explore Q9BX66 
Go to UniProtKB:  Q9BX66
PHAROS:  Q9BX66
Protein Feature View
Expand
  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
proline rich peptideB11Homo sapiensMutation(s): 0 
Gene Names: VCL
UniProt & NIH Common Fund Data Resources
Find proteins for P18206 (Homo sapiens)
Explore P18206 
Go to UniProtKB:  P18206
PHAROS:  P18206
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.00 Å
  • R-Value Free: 0.152 
  • R-Value Work: 0.139 
  • R-Value Observed: 0.140 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 28.87α = 90
b = 45.85β = 90
c = 52.86γ = 90
Software Package:
Software NamePurpose
PHASESphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

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