SEARCH Articles Figures Tables Antigen recognition by T lymphocytes Antigen-specific T cell activation Cytotoxic T lymphocyte antigen-4 (CTLA Cytotoxic T-lymphocyte antigen Cytotoxic T-lymphocyte-associated antigen Polyoma virus middle T antigen SV40 large T-antigen Sialyl T antigen T and B cell Antigen Receptors T antigen gene T cell antigen receptor signaling T cells antigen presentation T cells antigen recognition T-cell antigen receptor T-cell antigens T-cell dependent antigen