The T cell and its receptor.
D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology; D001402:B-Lymphocytes / Q000276:immunology; D006084:Graft Rejection; D006801:Humans; D008285:Major Histocompatibility Complex; D051379:Mice; D011948:Receptors, Antigen, T-Cell / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology*; D014777:Virus Diseases / Q000276:immunology
D000911:Antibodies, Monoclonal; D011948:Receptors, Antigen, T-Cell