2. Biology Dictionary
  3. T-cell receptor (TCR)

T-cell receptor (TCR)

Definition:

T cell receptors (TCRs) are protein complexes formed by six different polypeptides. In most T cells, TCRs are composed of αβ subunits displaying immunoglobulin-like variable domains that recognize peptide antigens associated with Major histocompatibility complex (MHC)/HLA proteins molecules expressed on the surface of antigen-presenting cells.

Biomedical Dictionary

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