1LM5

Structures of two intermediate filament-binding fragments of desmoplakin reveal a unique repeat motif structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structures of two intermediate filament-binding fragments of desmoplakin reveal a unique repeat motif structure.

Choi, H.J.Park-Snyder, S.Pascoe, L.T.Green, K.J.Weis, W.I.

(2002) Nat Struct Biol 9: 612-620

  • DOI: 10.1038/nsb818
  • Primary Citation of Related Structures:  
    1LM7, 1LM5

  • PubMed Abstract: 
  • Desmosomes are intercellular junctions in which cadherin cell adhesion molecules are linked to the intermediate filament (IF) system. Desmoplakin is a member of the plakin family of IF-binding proteins. The C-terminal domain of desmoplakin (DPCT) med ...

    Desmosomes are intercellular junctions in which cadherin cell adhesion molecules are linked to the intermediate filament (IF) system. Desmoplakin is a member of the plakin family of IF-binding proteins. The C-terminal domain of desmoplakin (DPCT) mediates binding to IFs in desmosomes. The DPCT sequence contains three regions, termed A, B and C, consisting of 4.5 copies of a 38-amino acid repeat motif. We demonstrate that these regions form discrete subdomains that bind to IFs and report the crystal structures of domains B and C. In contrast to the elongated structures formed by other kinds of repeat motifs, the plakin repeats form a globular structure with a unique fold. A conserved basic groove found on the domain may represent an IF-binding site.


    Organizational Affiliation

    Department of Structural Biology, Stanford University School of Medicine, 299 Campus Drive West, Stanford, California 94305, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
subdomain of Desmoplakin Carboxy-Terminal domain (DPCT)AB214Homo sapiensMutation(s): 0 
Gene Names: DSP
Find proteins for P15924 (Homo sapiens)
Explore P15924 
Go to UniProtKB:  P15924
NIH Common Fund Data Resources
PHAROS  P15924
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.203 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.32α = 90
b = 95.379β = 90
c = 54.982γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-07-31
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance