3T6A

Structure of the C-terminal domain of BCAR3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.177 

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This is version 1.1 of the entry. See complete history


Literature

NSP-Cas protein structures reveal a promiscuous interaction module in cell signaling.

Mace, P.D.Wallez, Y.Dobaczewska, M.K.Lee, J.J.Robinson, H.Pasquale, E.B.Riedl, S.J.

(2011) Nat Struct Mol Biol 18: 1381-1387

  • DOI: 10.1038/nsmb.2152
  • Primary Citation of Related Structures:  
    3T6G, 3T6A

  • PubMed Abstract: 
  • Members of the novel SH2-containing protein (NSP) and Crk-associated substrate (Cas) protein families form multidomain signaling platforms that mediate cell migration and invasion through a collection of distinct signaling motifs. Members of each family interact via their respective C-terminal domains, but the mechanism of this association has remained enigmatic ...

    Members of the novel SH2-containing protein (NSP) and Crk-associated substrate (Cas) protein families form multidomain signaling platforms that mediate cell migration and invasion through a collection of distinct signaling motifs. Members of each family interact via their respective C-terminal domains, but the mechanism of this association has remained enigmatic. Here we present the crystal structures of the C-terminal domain from the NSP protein BCAR3 and the complex of NSP3 with p130Cas. BCAR3 adopts the Cdc25-homology fold of Ras GTPase exchange factors, but it has a 'closed' conformation incapable of enzymatic activity. The structure of the NSP3-p130Cas complex reveals that this closed conformation is instrumental for interaction of NSP proteins with a focal adhesion-targeting domain present in Cas proteins. This enzyme-to-adaptor conversion enables high-affinity, yet promiscuous, interactions between NSP and Cas proteins and represents an unprecedented mechanistic paradigm linking cellular signaling networks.


    Organizational Affiliation

    Program of Apoptosis and Cell Death Research, Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Breast cancer anti-estrogen resistance protein 3A, B, C, D333Homo sapiensMutation(s): 1 
Gene Names: BCAR3NSP2SH2D3BUNQ271/PRO308
UniProt & NIH Common Fund Data Resources
Find proteins for O75815 (Homo sapiens)
Explore O75815 
Go to UniProtKB:  O75815
PHAROS:  O75815
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.177 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.233α = 90
b = 151.889β = 90
c = 196.503γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
PHASERphasing
PHENIXrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-11-23
    Type: Initial release
  • Version 1.1: 2011-12-28
    Changes: Database references