7Q9B

MHC Class I A02 Allele presenting EAAGIGILTV, in complex with Mel8 TCR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.24 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.226 

Starting Model: experimental
View more details

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 antigenA [auth AAA],
F [auth FFF]
275Homo 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
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Beta-2-microglobulinB [auth BBB],
G [auth GGG]
100Homo 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 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP61769
Sequence Annotations
Expand
  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
GLU-ALA-ALA-GLY-ILE-GLY-ILE-LEU-THR-VALC [auth CCC],
H [auth HHH]
10Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q16655 (Homo sapiens)
Explore Q16655 
Go to UniProtKB:  Q16655
PHAROS:  Q16655
GTEx:  ENSG00000120215 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ16655
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Human T Cell Receptor Mel8, Alpha ChainD [auth DDD],
I [auth III]
193Homo sapiensMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Human T Cell Receptor Mel8, Beta ChainE [auth EEE],
J [auth JJJ]
245Homo sapiensMutation(s): 0 
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
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.24 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.226 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 99.972α = 90
b = 53.645β = 94.333
c = 203.507γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

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, Refinement description
  • Version 1.2: 2024-02-07
    Changes: Refinement description