4QMD

Crystal structure of human envoplakin plakin repeat domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.601 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.168 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Mechanism of intermediate filament recognition by plakin repeat domains revealed by envoplakin targeting of vimentin.

Fogl, C.Mohammed, F.Al-Jassar, C.Jeeves, M.Knowles, T.J.Rodriguez-Zamora, P.White, S.A.Odintsova, E.Overduin, M.Chidgey, M.

(2016) Nat Commun 7: 10827-10827

  • DOI: 10.1038/ncomms10827

  • PubMed Abstract: 
  • Plakin proteins form critical connections between cell junctions and the cytoskeleton; their disruption within epithelial and cardiac muscle cells cause skin-blistering diseases and cardiomyopathies. Envoplakin has a single plakin repeat domain (PRD) ...

    Plakin proteins form critical connections between cell junctions and the cytoskeleton; their disruption within epithelial and cardiac muscle cells cause skin-blistering diseases and cardiomyopathies. Envoplakin has a single plakin repeat domain (PRD) which recognizes intermediate filaments through an unresolved mechanism. Herein we report the crystal structure of envoplakin's complete PRD fold, revealing binding determinants within its electropositive binding groove. Four of its five internal repeats recognize negatively charged patches within vimentin via five basic determinants that are identified by nuclear magnetic resonance spectroscopy. Mutations of the Lys1901 or Arg1914 binding determinants delocalize heterodimeric envoplakin from intracellular vimentin and keratin filaments in cultured cells. Recognition of vimentin is abolished when its residues Asp112 or Asp119 are mutated. The latter slot intermediate filament rods into basic PRD domain grooves through electrosteric complementarity in a widely applicable mechanism. Together this reveals how plakin family members form dynamic linkages with cytoskeletal frameworks.


    Organizational Affiliation

    School of Cancer Sciences, University of Birmingham, Birmingham B15 2TT, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Envoplakin
A, B
193Homo sapiensMutation(s): 0 
Gene Names: EVPL
Find proteins for Q92817 (Homo sapiens)
Go to Gene View: EVPL
Go to UniProtKB:  Q92817
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.601 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.168 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 42.480α = 90.00
b = 68.950β = 90.00
c = 112.200γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
XSCALEdata scaling
PDB_EXTRACTdata extraction
CrystalCleardata collection
XDSdata reduction
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-07-29
    Type: Initial release
  • Version 1.1: 2016-05-04
    Type: Database references