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Related Experiment Videos

T cell receptor gamma/delta chain diversity.

F Koning1, A M Kruisbeek, W L Maloy

  • 1Biological Resources Branch, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892.

The Journal of Experimental Medicine
|February 1, 1988
PubMed
Summary
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Researchers identified three distinct gamma and delta chains in murine hybridomas, revealing multiple delta chain forms. This polymorphism enhances T-cell receptor diversity, aiding in understanding ligand recognition.

Area of Science:

  • Immunology
  • Molecular Biology
  • Protein Chemistry

Background:

  • The T-cell receptor (TCR) gamma/delta is crucial for adaptive immunity.
  • Understanding TCR-gamma/delta diversity is key to elucidating immune responses.

Purpose of the Study:

  • To characterize the heterogeneity of TCR-gamma and -delta chains in murine hybridomas.
  • To investigate the structural diversity and potential genetic basis of delta chains.

Main Methods:

  • Comparative analysis of TCR-gamma and -delta chains using one-dimensional SDS-PAGE.
  • Two-dimensional NEPHGE/SDS-PAGE for high-resolution protein separation and identification.

Main Results:

  • Identification of three distinct gamma chain forms (gamma a, gamma b, gamma c).

Related Experiment Videos

  • Identification of three distinct delta chain forms (delta a, delta b, delta c).
  • Observation of four unique gamma/delta chain combinations, indicating significant delta chain polymorphism.

    • Conclusions:

    • Multiple forms of the delta chain are expressed in murine T-cells.
    • Delta chain polymorphism substantially increases the diversity of TCR-gamma/delta.
    • This diversity may be critical for recognizing various ligands, impacting immune surveillance.