6U4K

Human talin2 residues 1-403


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.198 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A distinct talin2 structure directs isoform specificity in cell adhesion.

Rangarajan, E.S.Primi, M.C.Colgan, L.A.Chinthalapudi, K.Yasuda, R.Izard, T.

(2020) J Biol Chem 295: 12885-12899

  • DOI: 10.1074/jbc.RA119.010789
  • Primary Citation of Related Structures:  
    6U4K

  • PubMed Abstract: 
  • Integrin receptors regulate normal cellular processes such as signaling, cell migration, adhesion to the extracellular matrix, and leukocyte function. Talin recruitment to the membrane is necessary for its binding to and activation of integrin. Vertebrates have two highly conserved talin homologs that differ in their expression patterns ...

    Integrin receptors regulate normal cellular processes such as signaling, cell migration, adhesion to the extracellular matrix, and leukocyte function. Talin recruitment to the membrane is necessary for its binding to and activation of integrin. Vertebrates have two highly conserved talin homologs that differ in their expression patterns. The F1-F3 FERM subdomains of cytoskeletal proteins resemble a cloverleaf, but in talin1, its F1 subdomain and additional F0 subdomain align more linearly with its F2 and F3 subdomains. Here, we present the talin2 crystal structure, revealing that its F0-F1 di-subdomain displays another unprecedented constellation, whereby the F0-F1-F2 adopts a new cloverleaf-like arrangement. Using multiangle light scattering (MALS), fluorescence lifetime imaging (FLIM), and FRET analyses, we found that substituting the corresponding residues in talin2 that abolish lipid binding in talin1 disrupt the binding of talin to the membrane, focal adhesion formation, and cell spreading. Our results provide the molecular details of the functions of specific talin isoforms in cell adhesion.


    Organizational Affiliation

    Cell Adhesion Laboratory, Department of Integrative Structural and Computational Biology, The Scripps Research Institute, Jupiter, Florida, USA cmorrow@scripps.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Talin-2 A405Homo sapiensMutation(s): 0 
Gene Names: TLN2KIAA0320
Find proteins for Q9Y4G6 (Homo sapiens)
Explore Q9Y4G6 
Go to UniProtKB:  Q9Y4G6
NIH Common Fund Data Resources
PHAROS:  Q9Y4G6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.198 
  • Space Group: P 65
  • Diffraction Data DOI: 10.15785/SBGRID/795 SBGrid
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.885α = 90
b = 58.885β = 90
c = 203.799γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-08
    Type: Initial release
  • Version 1.1: 2020-07-15
    Changes: Database references
  • Version 1.2: 2020-09-23
    Changes: Database references