3GM1

Crystal Structure of the Focal Adhesion Targeting (FAT) Domain of Pyk2 in Complex with Paxillin LD4 Motif-Derived Peptides


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structures of free and ligand-bound focal adhesion targeting domain of Pyk2

Lulo, J.Yuzawa, S.Schlessinger, J.

(2009) Biochem.Biophys.Res.Commun. 383: 347-352

  • DOI: 10.1016/j.bbrc.2009.04.011
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Focal adhesion targeting (FAT) domains target the non-receptor tyrosine kinases FAK and Pyk2 to cellular focal adhesion areas, where the signaling molecule paxillin is also located. Here, we report the crystal structures of the Pyk2 FAT domain alone ...

    Focal adhesion targeting (FAT) domains target the non-receptor tyrosine kinases FAK and Pyk2 to cellular focal adhesion areas, where the signaling molecule paxillin is also located. Here, we report the crystal structures of the Pyk2 FAT domain alone or in complex with paxillin LD4 peptides. The overall structure of Pyk2-FAT is an antiparallel four-helix bundle with an up-down, up-down, right-handed topology. In the LD4-bound FAT complex, two paxillin LD4 peptides interact with two opposite sides of Pyk2-FAT, at the surfaces of the alpha1alpha4 and alpha2alpha3 helices of each FAT molecule. We also demonstrate that, while paxillin is phosphorylated by Pyk2, complex formation between Pyk2 and paxillin does not depend on Pyk2 tyrosine kinase activity. These experiments reveal the structural basis underlying the selectivity of paxillin LD4 binding to the Pyk2 FAT domain and provide insights about the molecular details which influence the different behavior of these two closely-related kinases.


    Organizational Affiliation

    Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein tyrosine kinase 2 beta
A, B
153Homo sapiensMutation(s): 1 
Gene Names: PTK2B (FAK2, PYK2, RAFTK)
EC: 2.7.10.2
Find proteins for Q14289 (Homo sapiens)
Go to Gene View: PTK2B
Go to UniProtKB:  Q14289
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Paxillin
E, F, C, D
13Homo sapiensMutation(s): 0 
Gene Names: PXN
Find proteins for P49023 (Homo sapiens)
Go to Gene View: PXN
Go to UniProtKB:  P49023
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.233 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 73.774α = 90.00
b = 73.774β = 90.00
c = 156.925γ = 90.00
Software Package:
Software NamePurpose
CBASSdata collection
MOLREPphasing
HKL-2000data reduction
REFMACrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-05-05
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance