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Complex of at least five membrane-bound polypeptides in mature T-lymphocytes that are non-covalently associated with one another and with the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL). The CD3 complex includes the gamma, delta, epsilon, zeta, and eta chains (subunits). When antigen binds to the T-cell receptor, the CD3 complex transduces the activating signals to the cytoplasm of the T-cell. The CD3 gamma and delta chains (subunits) are separate from and not related to the gamma/delta chains of the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA).
2018; see ANTIGENS, CD3 1993-2017; CD3 COMPLEX was indexed under RECEPTORS, ANTIGEN, T-CELL 1990-92; under ANTIGENS, DIFFERENTIATION, T-LYMPHOCYTE 1988-92; under ANTIGENS, SURFACE 1983-87; and under ANTIGENS 1983-84; for T3 ANTIGENS see ANTIGENS, DIFFERENTIATION, T-LYMPHOCYTE 1988-92
History Note
2018 (1993); use T3 ANTIGEN COMPLEX 1983-92; use ANTIGENS, DIFFERENTIATION, T-LYMPHOCYTE 1988-92
Complex of at least five membrane-bound polypeptides in mature T-lymphocytes that are non-covalently associated with one another and with the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL). The CD3 complex includes the gamma, delta, epsilon, zeta, and eta chains (subunits). When antigen binds to the T-cell receptor, the CD3 complex transduces the activating signals to the cytoplasm of the T-cell. The CD3 gamma and delta chains (subunits) are separate from and not related to the gamma/delta chains of the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA).