5HYJ

1E6 TCR in Complex with HLA-A02 carrying AQWGPDPAAA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.06 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.216 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A "hotspot" for autoimmune T cells in type 1 diabetes.

Stadinski, B.D.Obst, R.Huseby, E.S.

(2016) J Clin Invest 126: 2040-2042

  • DOI: 10.1172/JCI88165
  • Primary Citation of Related Structures:  
    5HYJ

  • PubMed Abstract: 
  • The ability of a single T cell antigen receptor (TCR) to cross-react with multiple antigens allows the finite number of T cells within an organism to respond to the compendium of pathogen challenges faced during a lifetime. Effective immune surveilla ...

    The ability of a single T cell antigen receptor (TCR) to cross-react with multiple antigens allows the finite number of T cells within an organism to respond to the compendium of pathogen challenges faced during a lifetime. Effective immune surveillance, however, comes at a price. TCR cross-reactivity can allow molecular mimics to spuriously activate autoimmune T cells; it also underlies T cell rejection of organ transplants and drives graft-versus-host disease. In this issue of the JCI, Cole and colleagues provide insight into how an insulin-reactive T cell cross-reacts with pathogen-derived antigens by focusing on a limited portion of the peptides to provide a hotspot for binding. These findings dovetail with recent studies of alloreactive and autoimmune TCRs and suggest that the biochemical principles that govern conventional protein-protein interactions may allow the specificity and cross-reactivity profiles of T cells to be predicted.


    Organizational Affiliation

    Chemistry Research Laboratory, University of Oxford, Oxford, OX1 3TA, UK.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HLA class I histocompatibility antigen, A-2 alpha chainAF276Homo sapiensMutation(s): 0 
Gene Names: HLA-AHLAA
Find proteins for P04439 (Homo sapiens)
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PHAROS  P04439
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-2-microglobulinBG100Homo sapiensMutation(s): 0 
Gene Names: B2MCDABP0092HDCMA22P
Find proteins for P61769 (Homo sapiens)
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PHAROS  P61769
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
ALA-GLN-TRP-GLY-PRO-ASP-PRO-ALA-ALA-ALACH10Homo sapiensMutation(s): 0 
Gene Names: INS
Find proteins for P01308 (Homo sapiens)
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PHAROS  P01308
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Human T-cell Receptor, Class I, Light alpha ChainDI193Homo sapiensMutation(s): 0 
Gene Names: TRAV12-3TRACTCRA
Find proteins for A0A0B4J271 (Homo sapiens)
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PHAROS  A0A0B4J271
Find proteins for P01848 (Homo sapiens)
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PHAROS  P01848
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Human T-cell Receptor, Class I, Heavy beta ChainEJ246Homo sapiensMutation(s): 0 
Gene Names: TRBC2TCRBC2TRBV12-4
Find proteins for A0A0B4J2E0 (Homo sapiens)
Explore A0A0B4J2E0 
Go to UniProtKB:  A0A0B4J2E0
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Find proteins for A0A5B9 (Homo sapiens)
Explore A0A5B9 
Go to UniProtKB:  A0A5B9
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PHAROS  A0A5B9
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.06 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.216 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.44α = 97.29
b = 97.31β = 97.66
c = 121.37γ = 92.73
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-05-04
    Type: Initial release
  • Version 1.1: 2016-05-25
    Changes: Database references
  • Version 1.2: 2016-06-08
    Changes: Database references