1I4F

CRYSTAL STRUCTURE OF HLA-A*0201/MAGE-A4-PEPTIDE COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.136 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

High-resolution structure of HLA-A*0201 in complex with a tumour-specific antigenic peptide encoded by the MAGE-A4 gene.

Hillig, R.C.Coulie, P.G.Stroobant, V.Saenger, W.Ziegler, A.Hulsmeyer, M.

(2001) J.Mol.Biol. 310: 1167-1176

  • DOI: 10.1006/jmbi.2001.4816

  • PubMed Abstract: 
  • The heterotrimeric complex of the human major histocompatibity complex (MHC) molecule HLA-A*0201, beta2-microglobulin and the decameric peptide GVYDGREHTV derived from the melanoma antigen (MAGE-A4 protein has been determined by X-ray crystallography ...

    The heterotrimeric complex of the human major histocompatibity complex (MHC) molecule HLA-A*0201, beta2-microglobulin and the decameric peptide GVYDGREHTV derived from the melanoma antigen (MAGE-A4 protein has been determined by X-ray crystallography at 1.4 A resolution. MAGE-A4 belongs to a family of genes that are specifically expressed in a variety of tumours. MAGE-A4-derived peptides are presented by MHC molecules at the cell surface to cytotoxic T-lymphocytes. As the HLA-A*0201:MAGE-A4 complex occurs only on tumour cells, it is considered to be an appropriate target for immunotherapy. The structure presented here reveals potential epitopes specific to the complex and indicates which peptide residues could be recognised by T-cell receptors. In addition, as the structure could be refined anisotropically, it was possible to describe the movements of the bound peptide in more detail.


    Related Citations: 
    • A MAGE-A4 Peptide Presented by HLA-A2 is Recognized by Cytolytic T Lymphocytes
      Duffour, M.T.,Chaux, P.,Lurquin, C.,Cornelis, G.,Boon, T.,van der Bruggen, P.
      (1999) Eur.J.Immunol. 29: 3329


    Organizational Affiliation

    Institut für Immungenetik, Universitätsklinikum Charité, Humboldt-Universität zu Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, A-2 ALPHA CHAIN
A
275Homo sapiensGene Names: HLA-A (HLAA)
Find proteins for P01892 (Homo sapiens)
Go to Gene View: HLA-A
Go to UniProtKB:  P01892
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
BETA-2-MICROGLOBULIN
B
100Homo sapiensGene Names: B2M
Find proteins for P61769 (Homo sapiens)
Go to Gene View: B2M
Go to UniProtKB:  P61769
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
MELANOMA-ASSOCIATED ANTIGEN 4
C
10Homo sapiensGene Names: MAGEA4 (MAGE4)
Find proteins for P43358 (Homo sapiens)
Go to Gene View: MAGEA4
Go to UniProtKB:  P43358
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1PG
Query on 1PG

Download SDF File 
Download CCD File 
A, B
2-(2-{2-[2-(2-METHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-ETHANOL
C11 H24 O6
SLNYBUIEAMRFSZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.136 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 51.467α = 90.00
b = 80.222β = 111.06
c = 54.009γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
DENZOdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-07-25
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance