Related Experiment Videos
Pre-TCR/CD3 and TCR/CD3 complexes: decamers with differential signalling properties?
1Basel Institute for Immunology, Switzerland. Jacobs@BII.CH
Immunology Today
|January 13, 1998
Summary
The T-cell receptor (TCR)/CD3 complex may be bivalent, not monovalent, with a decameric organization offering a neutral transmembrane charge. This model explains pre-TCR organization and signal transduction in immune responses.
Area of Science:
- Immunology
- Molecular Biology
- Structural Biology
Background:
- The current model of the T-cell receptor (TCR)/CD3 complex is octameric and monovalent.
- Biochemical and structural data suggest an alternative decameric, bivalent organization.
Purpose of the Study:
- To propose a model for the organization of the pre-TCR complex.
- To discuss the function of this proposed model in signal transduction.
Main Methods:
- Biochemical analysis
- Structural data interpretation
- Functional data integration
- Model proposal
Main Results:
- A bivalent (TCR alpha beta)2/CD3 gamma epsilon delta epsilon zeta zeta decameric organization is favored.
- This organization results in a favorable neutral transmembrane net charge within the complex.
Conclusions:
- The proposed decameric model offers a more comprehensive explanation for TCR/CD3 complex organization.
- This model provides insights into pre-TCR function and immune signal transduction pathways.