1LM7

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.249 

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) mediates binding to IFs in desmosomes ...

    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)A, B248Homo sapiensMutation(s): 0 
Gene Names: DSP
UniProt & NIH Common Fund Data Resources
Find proteins for P15924 (Homo sapiens)
Explore P15924 
Go to UniProtKB:  P15924
PHAROS:  P15924
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.249 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.293α = 90
b = 99.773β = 97.58
c = 51.687γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • 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