3S90

Human vinculin head domain Vh1 (residues 1-252) in complex with murine talin (VBS33; residues 1512-1546)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.97 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.5 of the entry. See complete history

Literature

Intermolecular versus intramolecular interactions of the vinculin binding site 33 of talin.

Yogesha, S.D.Sharff, A.Bricogne, G.Izard, T.

(2011) Protein Sci. 20: 1471-1476

  • DOI: 10.1002/pro.671

  • PubMed Abstract: 
  • The cytoskeletal proteins talin and vinculin are localized at cell-matrix junctions and are key regulators of cell signaling, adhesion, and migration. Talin couples integrins via its FERM domain to F-actin and is an important regulator of integrin ac ...

    The cytoskeletal proteins talin and vinculin are localized at cell-matrix junctions and are key regulators of cell signaling, adhesion, and migration. Talin couples integrins via its FERM domain to F-actin and is an important regulator of integrin activation and clustering. The 220 kDa talin rod domain comprises several four- and five-helix bundles that harbor amphipathic α-helical vinculin binding sites (VBSs). In its inactive state, the hydrophobic VBS residues involved in binding to vinculin are buried within these helix bundles, and the mechanical force emanating from bound integrin receptors is thought necessary for their release and binding to vinculin. The crystal structure of a four-helix bundle of talin that harbors one of these VBSs, coined VBS33, was recently determined. Here we report the crystal structure of VBS33 in complex with vinculin at 2 Å resolution. Notably, comparison of the apo and vinculin bound structures shows that intermolecular interactions of the VBS33 α-helix with vinculin are more extensive than the intramolecular interactions of the VBS33 within the talin four-helix bundle.


    Organizational Affiliation

    Cell Adhesion Laboratory, Department of Cancer Biology, The Scripps Research Institute, Jupiter, FL 33458, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Vinculin
A, B
253Homo sapiensMutation(s): 0 
Gene Names: VCL
Find proteins for P18206 (Homo sapiens)
Go to Gene View: VCL
Go to UniProtKB:  P18206
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Talin-1
C, D
40Mus musculusMutation(s): 0 
Gene Names: Tln1 (Tln)
Find proteins for P26039 (Mus musculus)
Go to UniProtKB:  P26039
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.97 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.186 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 48.830α = 83.27
b = 61.180β = 79.05
c = 71.420γ = 69.79
Software Package:
Software NamePurpose
AutoPROCdata scaling
SCALAdata scaling
BUSTERrefinement
XDSdata reduction
MAR345data collection
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-06-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2012-04-25
    Type: Database references
  • Version 1.3: 2012-12-19
    Type: Database references
  • Version 1.4: 2014-10-29
    Type: Structure summary
  • Version 1.5: 2017-11-08
    Type: Refinement description