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Related Experiment Videos

T-cell receptor structure and TCR complexes

I A Wilson1, K C Garcia

  • 1Department of Molecular Biology, Skaggs Institute for Chemical Biology, Scripps Research Institute, La Jolla, CA 92037, USA. wilson@scripps.edu

Current Opinion in Structural Biology
|January 22, 1998
PubMed
Summary
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New crystal structures reveal how T-cell receptors (TCRs) bind to peptide-MHC complexes and superantigens. These findings illuminate TCR architecture and antigen recognition mechanisms, advancing immunology research.

Area of Science:

  • Immunology
  • Structural Biology
  • Molecular Biology

Background:

  • T-cell receptors (TCRs) are crucial for adaptive immunity, recognizing peptide-MHC complexes.
  • Understanding TCR structure and antigen binding is key to immune response mechanisms.

Purpose of the Study:

  • To present the first crystal structures of intact T-cell receptors (TCRs) and their complexes with peptide-MHC (pMHC) antigens.
  • To analyze the structural basis of TCR interactions with pMHC ligands and bacterial superantigens.

Main Methods:

  • X-ray crystallography was used to determine the structures of TCRs and their complexes.
  • Comparative analysis of TCR structures and antibody antigen-binding regions.

Main Results:

Related Experiment Videos

  • The first crystal structures of intact TCR-pMHC complexes were reported.
  • Structures revealed similarities and differences between TCR and antibody antigen-binding regions.
  • Insights into TCR interactions with both pMHC and superantigens were obtained.

    • Conclusions:

    • The reported crystal structures provide unprecedented insights into TCR architecture.
    • These findings enhance our understanding of TCR-mediated antigen recognition and immune signaling.