Receptors antigen t-cell gamma-delta

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receptors, antigen, T-cell, gamma-delta

t-cell receptors composed of cD3-associated gamma and delta polypeptide chains and expressed primarily in cD4-/CD8- t-cells. The receptors appear to be preferentially located in epithelial sites and probably play a role in the recognition of bacterial antigens. The T-cell receptor gamma/delta chains are separate and not related to the gamma and delta chains which are subunits of CD3 (see antigens, CD3).