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

Experimental Data Snapshot

  • 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 1.3 of the entry. See complete history


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: https://doi.org/10.1016/j.jmb.2010.04.011
  • Primary Citation of Related Structures:  

  • 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. 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

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOTOXIC T-LYMPHOCYTE PROTEIN 4A [auth D]131Homo sapiensMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for P16410 (Homo sapiens)
Explore P16410 
Go to UniProtKB:  P16410
PHAROS:  P16410
GTEx:  ENSG00000163599 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP16410
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • 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
XDSdata reduction
XDSdata scaling

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
  • Version 1.3: 2023-12-20
    Changes: Data collection, Database references, Other, Refinement description