Crystal structure of human envoplakin plakin repeat domain

Experimental Data Snapshot

  • Resolution: 1.60 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.172 

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This is version 1.2 of the entry. See complete history


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: https://doi.org/10.1038/ncomms10827
  • Primary Citation of Related Structures:  

  • 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) 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.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
193Homo sapiensMutation(s): 0 
Gene Names: EVPL
UniProt & NIH Common Fund Data Resources
Find proteins for Q92817 (Homo sapiens)
Explore Q92817 
Go to UniProtKB:  Q92817
PHAROS:  Q92817
GTEx:  ENSG00000167880 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ92817
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.60 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.172 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.48α = 90
b = 68.95β = 90
c = 112.2γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PDB_EXTRACTdata extraction
CrystalCleardata collection
XDSdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-07-29
    Type: Initial release
  • Version 1.1: 2016-05-04
    Changes: Database references
  • Version 1.2: 2024-02-28
    Changes: Data collection, Database references