4XEF

Pyk2-FAT complexed with Leupaxin LD motif LD1

  • Classification: CELL ADHESION
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli
  • Mutation(s): 

  • Deposited: 2014-12-23 Released: 2015-12-23 
  • Deposition Author(s): Miller, D.J.
  • Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences 

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural Basis for the Interaction between Pyk2-FAT Domain and Leupaxin LD Repeats.

Vanarotti, M.S.Finkelstein, D.B.Guibao, C.D.Nourse, A.Miller, D.J.Zheng, J.J.

(2016) Biochemistry 55: 1332-1345

  • DOI: 10.1021/acs.biochem.5b01274
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Proline-rich tyrosine kinase 2 (Pyk2) is a nonreceptor tyrosine kinase and belongs to the focal adhesion kinase (FAK) family. Like FAK, the C-terminal focal adhesion-targeting (FAT) domain of Pyk2 binds to paxillin, a scaffold protein in focal adhesi ...

    Proline-rich tyrosine kinase 2 (Pyk2) is a nonreceptor tyrosine kinase and belongs to the focal adhesion kinase (FAK) family. Like FAK, the C-terminal focal adhesion-targeting (FAT) domain of Pyk2 binds to paxillin, a scaffold protein in focal adhesions; however, the interaction between the FAT domain of Pyk2 and paxillin is dynamic and unstable. Leupaxin is another member in the paxillin family and was suggested to be the native binding partner of Pyk2; Pyk2 gene expression is strongly correlated with that of leupaxin in many tissues including primary breast cancer. Here, we report that leupaxin interacts with Pyk2-FAT. Leupaxin has four leucine-aspartate (LD) motifs. The first and third LD motifs of leupaxin preferably target the two LD-binding sites on the Pyk2-FAT domain, respectively. Moreover, the full-length leupaxin binds to Pyk2-FAT as a stable one-to-one complex. Together, we propose that there is an underlying selectivity between leupaxin and paxillin for Pyk2, which may influence the differing behavior of the two proteins at focal adhesion sites.


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein-tyrosine kinase 2-beta
A, D
139Homo sapiensMutation(s): 2 
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
20-mer peptide containing LD1 motif of leupaxin
B, C, E, F
20Homo sapiensMutation(s): 0 
Gene Names: LPXN (LDLP)
Find proteins for O60711 (Homo sapiens)
Go to Gene View: LPXN
Go to UniProtKB:  O60711
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.224 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 27.482α = 90.00
b = 78.094β = 90.00
c = 165.418γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
HKL-2000data scaling
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2014-12-23 
  • Released Date: 2015-12-23 
  • Deposition Author(s): Miller, D.J.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM100909-03

Revision History 

  • Version 1.0: 2015-12-23
    Type: Initial release
  • Version 1.1: 2016-02-24
    Type: Database references
  • Version 1.2: 2016-03-16
    Type: Database references
  • Version 1.3: 2017-09-27
    Type: Author supporting evidence, Database references, Derived calculations