Receptors, Antigen, T-Cell

**Definition:** Molecules on the surface of T-lymphocytes that recognize and combine with antigens. The receptors are non-covalently associated with a complex of several polypeptides collectively called CD3 antigens (CD3 COMPLEX). Recognition of foreign antigen and the major histocompatibility complex is accomplished by a single heterodimeric antigen-receptor structure, composed of either alpha-beta (RECEPTORS, ANTIGEN, T-CELL, ALPHA-BETA) or gamma-delta (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA) chains.

**Tree numbers:** - D12.776.543.750.705.816.824

**Synonyms:** - Receptors, T-Cell Antigen - T-Cell Antigen Receptor - Antigen Receptors, T-Cell - T-Cell Receptor - T-Cell Receptors