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Target intelligence / Profile preview
CD3 epsilon subunit of the T-cell receptor complex (CD3E)
- Target
- CD3E
- Molecular classification
- Receptor, Single-pass type I membrane protein
01
Overview
The CD3 epsilon (CD3ε) polypeptide is a critical component of the T-cell receptor (TCR)-CD3 complex, which is essential for antigen recognition and signal transduction in T cells. It is required for proper thymocyte development, and its absence leads to severe immunodeficiency. Mutations or defects in CD3E can cause severe combined immunodeficiency syndromes. Genetic variants have also been linked with increased susceptibility to autoimmune diseases.
- Other names
- CD3 epsilon chainT-cell surface glycoprotein CD3 epsilon chainCD3e
02
Mechanism of action
N/A
03
Biological functions
Signal transductionT cell activationT cell developmentImmune responseTCR-CD3 complex assembly
04
Disease associations
Severe combined immunodeficiencyAutoimmune diseasesImmunodeficiency 18
05
Safety considerations
Immunodeficiency due to impaired T cell development/functionPotential link to autoimmunity
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