7Q9A

MHC Class I A02 Allele presenting LLLGIGILVL, in complex with Mel5 TCR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.206 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Targeting of multiple tumor-associated antigens by individual T cell receptors during successful cancer immunotherapy.

Dolton, G.Rius, C.Wall, A.Szomolay, B.Bianchi, V.Galloway, S.A.E.Hasan, M.S.Morin, T.Caillaud, M.E.Thomas, H.L.Theaker, S.Tan, L.R.Fuller, A.Topley, K.Legut, M.Attaf, M.Hopkins, J.R.Behiry, E.Zabkiewicz, J.Alvares, C.Lloyd, A.Rogers, A.Henley, P.Fegan, C.Ottmann, O.Man, S.Crowther, M.D.Donia, M.Svane, I.M.Cole, D.K.Brown, P.E.Rizkallah, P.Sewell, A.K.

(2023) Cell 186: 3333-3349.e27

  • DOI: https://doi.org/10.1016/j.cell.2023.06.020
  • Primary Citation of Related Structures:  
    7Q98, 7Q99, 7Q9A, 7Q9B, 7ZUC

  • PubMed Abstract: 

    The T cells of the immune system can target tumors and clear solid cancers following tumor-infiltrating lymphocyte (TIL) therapy. We used combinatorial peptide libraries and a proteomic database to reveal the antigen specificities of persistent cancer-specific T cell receptors (TCRs) following successful TIL therapy for stage IV malignant melanoma. Remarkably, individual TCRs could target multiple different tumor types via the HLA A 02:01-restricted epitopes EAAGIGILTV, LLLGIGILVL, and NLSALGIFST from Melan A, BST2, and IMP2, respectively. Atomic structures of a TCR bound to all three antigens revealed the importance of the shared x-x-x-A/G-I/L-G-I-x-x-x recognition motif. Multi-epitope targeting allows individual T cells to attack cancer in several ways simultaneously. Such "multipronged" T cells exhibited superior recognition of cancer cells compared with conventional T cell recognition of individual epitopes, making them attractive candidates for the development of future immunotherapies.


  • Organizational Affiliation

    Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, Wales CF14 4XN, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
MHC class I antigen276Homo sapiensMutation(s): 0 
Gene Names: HLA-A
UniProt
Find proteins for A0A140T913 (Homo sapiens)
Explore A0A140T913 
Go to UniProtKB:  A0A140T913
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A140T913
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Beta-2-microglobulin100Homo sapiensMutation(s): 0 
Gene Names: B2MCDABP0092HDCMA22P
UniProt & NIH Common Fund Data Resources
Find proteins for P61769 (Homo sapiens)
Explore P61769 
Go to UniProtKB:  P61769
PHAROS:  P61769
GTEx:  ENSG00000166710 
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UniProt GroupP61769
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  • Reference Sequence

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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
LEU-LEU-LEU-GLY-ILE-GLY-ILE-LEU-VAL-LEU10Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q10589 (Homo sapiens)
Explore Q10589 
Go to UniProtKB:  Q10589
PHAROS:  Q10589
GTEx:  ENSG00000130303 
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UniProt GroupQ10589
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Human Mel5 T Cell Receptor, Alpha Chain199Homo sapiensMutation(s): 0 
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Sequence Annotations
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  • Reference Sequence
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Human Mel5 T Cell Receptor, Beta Chain244Homo sapiensMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.206 
  • Space Group: P 43
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 122.019α = 90
b = 122.019β = 90
c = 82.418γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
xia2data scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2023-02-22
    Type: Initial release
  • Version 1.1: 2023-09-06
    Changes: Data collection, Database references
  • Version 1.2: 2024-02-07
    Changes: Refinement description