7PBC

Crystal structure of engineered TCR (796) complexed to HLA-A*02:01 presenting MAGE-A10 9-mer peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.04 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.186 

wwPDB Validation   3D Report Full Report


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Literature

Structural insights into engineering a T-cell receptor targeting MAGE-A10 with higher affinity and specificity for cancer immunotherapy.

Simister, P.C.Border, E.C.Vieira, J.F.Pumphrey, N.J.

(2022) J Immunother Cancer 10

  • DOI: 10.1136/jitc-2022-004600
  • Primary Citation of Related Structures:  
    7PBC, 7PDW, 7PDX, 7QPJ

  • PubMed Abstract: 
  • T-cell receptor (TCR) immunotherapy is becoming a viable modality in cancer treatment with efficacy in clinical trials. The safety of patients is paramount, so innovative cell engineering methods are being employed to exploit adaptive immunity while controlling the factors governing antigen receptor (ie, TCR) specificity and cross-reactivity ...

    T-cell receptor (TCR) immunotherapy is becoming a viable modality in cancer treatment with efficacy in clinical trials. The safety of patients is paramount, so innovative cell engineering methods are being employed to exploit adaptive immunity while controlling the factors governing antigen receptor (ie, TCR) specificity and cross-reactivity. We recently reported a TCR engineering campaign and selectivity profiling assay (X-scan) targeting a melanoma antigen gene (MAGE)-A10 peptide. This helped to distinguish between two well-performing TCRs based on cross-reactivity potential during preclinical drug evaluation, allowing one to be advanced to T-cell immunotherapeutic clinical trials. Here, we present three-dimensional structural information on those TCRs, highlighting engineering improvements and molecular mechanisms likely underpinning differential selectivity.


    Related Citations: 
    • Affinity-enhanced T-cell receptors for adoptive T-cell therapy targeting MAGE-A10: strategy for selection of an optimal candidate
      Border, E.C., Sanderson, J.P., Weissensteiner, T., Gerry, A.B., Pumphrey, N.J.
      (2018) Oncoimmunology 8: e1532759

    Organizational Affiliation

    Adaptimmune, Abingdon, Oxfordshire, UK.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MHC class I antigenA [auth CCC]277Homo sapiensMutation(s): 0 
Gene Names: HLA-A
UniProt
Find proteins for Q861F7 (Homo sapiens)
Explore Q861F7 
Go to UniProtKB:  Q861F7
Entity Groups  
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UniProt GroupQ861F7
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-2-microglobulinB [auth DDD]100Homo sapiensMutation(s): 0 
Gene Names: B2MCDABP0092HDCMA22P
UniProt & NIH Common Fund Data Resources
Find proteins for P61769 (Homo sapiens)
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PHAROS:  P61769
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UniProt GroupP61769
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
T-cell receptor (TRAV/TRAC)C [auth AAA]206Homo sapiensMutation(s): 0 
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
T-cell receptor (TRBV/TRBC)D [auth BBB]241Homo sapiensMutation(s): 0 
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  • Reference Sequence

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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Melanoma-associated antigen 10E [auth EEE]9Homo sapiensMutation(s): 0 
Gene Names: MAGEA10MAGE10
UniProt & NIH Common Fund Data Resources
Find proteins for P43363 (Homo sapiens)
Explore P43363 
Go to UniProtKB:  P43363
PHAROS:  P43363
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UniProt GroupP43363
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
F [auth CCC],
G [auth CCC],
H [auth CCC]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
I [auth BBB]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.04 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.186 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.33α = 90
b = 77.5β = 102.88
c = 115.12γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
REFMACrefinement
Aimlessdata scaling
MOSFLMdata reduction
Cootmodel building
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Adaptimmune LtdUnited Kingdom--

Revision History  (Full details and data files)

  • Version 1.0: 2022-08-03
    Type: Initial release