1UXS

CRYSTAL STRUCTURE OF HLA-B*2705 COMPLEXED WITH THE LATENT MEMBRANE PROTEIN 2 PEPTIDE (LMP2)OF EPSTEIN-BARR VIRUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.177 
  • R-Value Work: 0.142 
  • R-Value Observed: 0.143 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Allele-Dependent Similarity between Viral and Self-Peptide Presentation by Hla-B27 Subtypes

Fiorillo, M.T.Ruckert, C.Hulsmeyer, M.Sorrentino, R.Saenger, W.Ziegler, A.Uchanska-Ziegler, B.

(2005) J Biol Chem 280: 2962

  • DOI: https://doi.org/10.1074/jbc.M410807200
  • Primary Citation of Related Structures:  
    1UXS, 1UXW

  • PubMed Abstract: 

    Molecular mimicry is discussed as a possible mechanism that may contribute to the development of autoimmune diseases. It could also be involved in the differential association of the human major histocompatibility subtypes HLA-B(*)2705 and HLA-B(*)2709 with ankylosing spondylitis. These two subtypes differ only in residue 116 of the heavy chain (Asp in B(*)2705 and His in B(*)2709), but the reason for the differential disease association is not understood. Using x-ray crystallography, we show here that the viral peptide pLMP2 (RRRWRRLTV, derived from latent membrane protein 2 (residues 236-244) of Epstein-Barr virus) is presented by the B(*)2705 and B(*)2709 molecules in two drastically deviating conformations. Extensive structural similarity between pLMP2 and the self-peptide pVIPR (RRKWRRWHL, derived from vasoactive intestinal peptide type 1 receptor (residues 400-408)) is observed only when the peptides are presented by B(*)2705 because of a salt bridge between Arg(5) of both peptides and the subtype-specific heavy chain residue Asp(116). Combined with functional studies using pLMP2/pVIPR-cross-reactive cytotoxic T cell lines and clones, together with target cells presenting these peptides or a modified peptide analogue, our results reveal that a pathogen-derived peptide can exhibit major histocompatibility complex class I subtype-dependent, drastically distinct binding modes. Furthermore, the results demonstrate that molecular mimicry between pLMP2 and pVIPR in the HLA-B27 context is an allele-dependent property.


  • Organizational Affiliation

    Dipartimento di Biologia Cellulare e dello Sviluppo, Università di Roma La Sapienza, via dei Sardi 70, 00185 Roma, Italy.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
HLA CLASS I HISTOCOMPATIBILITY ANTIGEN B-27 ALPHA CHAIN276Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P01889 (Homo sapiens)
Explore P01889 
Go to UniProtKB:  P01889
PHAROS:  P01889
GTEx:  ENSG00000234745 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP01889
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
BETA-2-MICROGLOBULIN100Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P61769 (Homo sapiens)
Explore P61769 
Go to UniProtKB:  P61769
PHAROS:  P61769
GTEx:  ENSG00000166710 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP61769
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  • Reference Sequence

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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
GENE TERMINAL PROTEIN (MEMBRANE PROTEIN LMP-2A/LMP-2B)9human gammaherpesvirus 4Mutation(s): 0 
UniProt
Find proteins for P13285 (Epstein-Barr virus (strain B95-8))
Explore P13285 
Go to UniProtKB:  P13285
Entity Groups  
UniProt GroupP13285
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.177 
  • R-Value Work: 0.142 
  • R-Value Observed: 0.143 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.136α = 90
b = 82.329β = 109.25
c = 65.91γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-11-09
    Type: Initial release
  • Version 1.1: 2011-05-07
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-12-13
    Changes: Data collection, Database references, Other, Refinement description