2Z35

Crystal structure of immune receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.263 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural evidence for a germline-encoded T cell receptor-major histocompatibility complex interaction 'codon'

Feng, D.Bond, C.J.Ely, L.K.Maynard, J.Garcia, K.C.

(2007) Nat Immunol 8: 975-983

  • DOI: 10.1038/ni1502
  • Primary Citation of Related Structures:  
    2Z35, 2Z31, 2PXY

  • PubMed Abstract: 
  • All complexes of T cell receptors (TCRs) bound to peptide-major histocompatibility complex (pMHC) molecules assume a stereotyped binding 'polarity', despite wide variations in TCR-pMHC docking angles. However, existing TCR-pMHC crystal structures have failed to show broadly conserved pairwise interaction motifs ...

    All complexes of T cell receptors (TCRs) bound to peptide-major histocompatibility complex (pMHC) molecules assume a stereotyped binding 'polarity', despite wide variations in TCR-pMHC docking angles. However, existing TCR-pMHC crystal structures have failed to show broadly conserved pairwise interaction motifs. Here we determined the crystal structures of two TCRs encoded by the variable beta-chain 8.2 (V(beta)8.2), each bound to the MHC class II molecule I-A(u), and did energetic mapping of V(alpha) and V(beta) contacts with I-A(u). Together with two previously solved structures of V(beta)8.2-containing TCR-MHC complexes, we found four TCR-I-A complexes with structurally superimposable interactions between the V(beta) loops and the I-A alpha-helix. This examination of a narrow 'slice' of the TCR-MHC repertoire demonstrates what is probably one of many germline-derived TCR-MHC interaction 'codons'.


    Organizational Affiliation

    Howard Hughes Medical Institute, Department of Molecular & Cellular Physiology, Stanford University School of Medicine, Stanford, California 94305, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
T-cell receptor alpha-chainA112Mus musculusMutation(s): 0 
Gene Names: TRAV6D-7
UniProt
Find proteins for Q5R1F5 (Mus musculus)
Explore Q5R1F5 
Go to UniProtKB:  Q5R1F5
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
T-cell receptor beta-chainB111Mus musculusMutation(s): 0 
UniProt
Find proteins for A2NTY6 (Mus musculus)
Explore A2NTY6 
Go to UniProtKB:  A2NTY6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.263 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.994α = 90
b = 73.802β = 90
c = 115.374γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
AMoREphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-10-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance