3ZDT

Crystal structure of basic patch mutant FAK FERM domain FAK31- 405 K216A, K218A, R221A, K222A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Phosphatidylinositol 4,5-Bisphosphate Triggers Activation of Focal Adhesion Kinase by Inducing Clustering and Conformational Changes.

Goni, G.M.Epifano, C.Boskovic, J.Camacho-Artacho, M.Zhou, J.Bronowska, A.Martin, M.T.Eck, M.J.Kremer, L.Grater, F.Gervasio, F.L.Perez-Moreno, M.Lietha, D.

(2014) Proc.Natl.Acad.Sci.USA 111: E3177

  • DOI: 10.1073/pnas.1317022111
  • Primary Citation of Related Structures:  4CYE

  • PubMed Abstract: 
  • Focal adhesion kinase (FAK) is a nonreceptor tyrosine kinase (NRTK) with key roles in integrating growth and cell matrix adhesion signals, and FAK is a major driver of invasion and metastasis in cancer. Cell adhesion via integrin receptors is well kn ...

    Focal adhesion kinase (FAK) is a nonreceptor tyrosine kinase (NRTK) with key roles in integrating growth and cell matrix adhesion signals, and FAK is a major driver of invasion and metastasis in cancer. Cell adhesion via integrin receptors is well known to trigger FAK signaling, and many of the players involved are known; however, mechanistically, FAK activation is not understood. Here, using a multidisciplinary approach, including biochemical, biophysical, structural, computational, and cell biology approaches, we provide a detailed view of a multistep activation mechanism of FAK initiated by phosphatidylinositol-4,5-bisphosphate [PI(4,5)P2]. Interestingly, the mechanism differs from canonical NRTK activation and is tailored to the dual catalytic and scaffolding function of FAK. We find PI(4,5)P2 induces clustering of FAK on the lipid bilayer by binding a basic region in the regulatory 4.1, ezrin, radixin, moesin homology (FERM) domain. In these clusters, PI(4,5)P2 induces a partially open FAK conformation where the autophosphorylation site is exposed, facilitating efficient autophosphorylation and subsequent Src recruitment. However, PI(4,5)P2 does not release autoinhibitory interactions; rather, Src phosphorylation of the activation loop in FAK results in release of the FERM/kinase tether and full catalytic activation. We propose that PI(4,5)P2 and its generation in focal adhesions by the enzyme phosphatidylinositol 4-phosphate 5-kinase type Iγ are important in linking integrin signaling to FAK activation.


    Organizational Affiliation

    Structural Biology and Biocomputing Program and.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FOCAL ADHESION KINASE 1
A, B
377Gallus gallusGene Names: PTK2 (FAK, FAK1)
EC: 2.7.10.2
Find proteins for Q00944 (Gallus gallus)
Go to Gene View: PTK2
Go to UniProtKB:  Q00944
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.214 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 41.567α = 90.00
b = 175.527β = 93.94
c = 60.032γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing
XSCALEdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-12-12
    Type: Initial release
  • Version 1.1: 2014-07-30
    Type: Database references
  • Version 1.2: 2014-08-20
    Type: Database references