2X44

Structure of a strand-swapped dimeric form of CTLA-4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Domain Metastability: A Molecular Basis for Immunoglobulin Deposition?

Sonnen, A.F.Yu, C.Evans, E.J.Stuart, D.I.Davis, S.J.Gilbert, R.J.C.

(2010) J Mol Biol 399: 207

  • DOI: 10.1016/j.jmb.2010.04.011
  • Primary Citation of Related Structures:  
    2X44

  • PubMed Abstract: 
  • We present the crystal structure of an immunoglobulin light-chain-like domain, CTLA-4, as a strand-swapped dimer displaying cis-trans proline isomerisation and native-like hydrogen bonding. We also show that CTLA-4 can form amyloid-like fibres and amorphous deposits explainable by the same strand swapping ...

    We present the crystal structure of an immunoglobulin light-chain-like domain, CTLA-4, as a strand-swapped dimer displaying cis-trans proline isomerisation and native-like hydrogen bonding. We also show that CTLA-4 can form amyloid-like fibres and amorphous deposits explainable by the same strand swapping. Our results suggest a molecular basis for the pathological aggregation of immunoglobulin domains and why amyloid-like fibres are more often composed of homologous rather than heterologous subunits.


    Organizational Affiliation

    Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK. andreas@strubi.ox.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CYTOTOXIC T-LYMPHOCYTE PROTEIN 4 D131Homo sapiensMutation(s): 1 
Gene Names: CTLA4CD152
Find proteins for P16410 (Homo sapiens)
Explore P16410 
Go to UniProtKB:  P16410
NIH Common Fund Data Resources
PHAROS:  P16410
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.951α = 90
b = 42.951β = 90
c = 140.101γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-04-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2011-08-10
    Changes: Database references, Derived calculations, Refinement description