5W93

p130Cas complex with paxillin LD1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.001 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural and functional insights into the interaction between the Cas family scaffolding protein p130Cas and the focal adhesion-associated protein paxillin.

Zhang, C.Miller, D.J.Guibao, C.D.Donato, D.M.Hanks, S.K.Zheng, J.J.

(2017) J. Biol. Chem. 292: 18281-18289

  • DOI: 10.1074/jbc.M117.807271

  • PubMed Abstract: 
  • The Cas family scaffolding protein p130Cas is a Src substrate localized in focal adhesions (FAs) and functions in integrin signaling to promote cell motility, invasion, proliferation, and survival. p130Cas targeting to FAs is essential for its tyrosi ...

    The Cas family scaffolding protein p130Cas is a Src substrate localized in focal adhesions (FAs) and functions in integrin signaling to promote cell motility, invasion, proliferation, and survival. p130Cas targeting to FAs is essential for its tyrosine phosphorylation and downstream signaling. Although the N-terminal SH3 domain is important for p130Cas localization, it has also been reported that the C-terminal region is involved in p130Cas FA targeting. The C-terminal region of p130Cas or Cas family homology domain (CCHD) has been reported to adopt a structure similar to that of the focal adhesion kinase C-terminal focal adhesion-targeting domain. The mechanism by which the CCHD promotes FA targeting of p130Cas, however, remains unclear. In this study, using a calorimetry approach, we identified the first LD motif (LD1) of the FA-associated protein paxillin as the binding partner of the p130Cas CCHD (in a 1:1 stoichiometry with a Kd ∼4.2 μm) and elucidated the structure of the p130Cas CCHD in complex with the paxillin LD1 motif by X-ray crystallography. Of note, a comparison of the CCHD/LD1 complex with a previously solved structure of CCHD in complex with the SH2-containing protein NSP3 revealed that LD1 had almost identical positioning of key hydrophobic and acidic residues relative to NSP3. Because paxillin is one of the key scaffold molecules in FAs, we propose that the interaction between the p130Cas CCHD and the LD1 motif of paxillin plays an important role in p130Cas FA targeting.


    Organizational Affiliation

    From the Stein Eye Institute, Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California 90095.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Breast cancer anti-estrogen resistance protein 1
A, B, C
137Mus musculusMutation(s): 2 
Gene Names: Bcar1 (Cas, Crkas)
Find proteins for Q61140 (Mus musculus)
Go to UniProtKB:  Q61140
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Paxillin
D, E, F
20Mus musculusMutation(s): 0 
Gene Names: Pxn
Find proteins for Q8VI36 (Mus musculus)
Go to UniProtKB:  Q8VI36
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.001 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.196 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 84.290α = 90.00
b = 37.741β = 100.94
c = 152.502γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PHENIXrefinement
PHASERphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-09-06
    Type: Initial release
  • Version 1.1: 2017-12-06
    Type: Database references