2X44

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.192 

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

  • 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 am ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYTOTOXIC T-LYMPHOCYTE PROTEIN 4
D
131Homo sapiensMutation(s): 1 
Gene Names: CTLA4 (CD152)
Find proteins for P16410 (Homo sapiens)
Go to Gene View: CTLA4
Go to UniProtKB:  P16410
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.192 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 42.951α = 90.00
b = 42.951β = 90.00
c = 140.101γ = 120.00
Software Package:
Software NamePurpose
XDSdata scaling
PHASERphasing
XDSdata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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