Expression of the human T cell receptor as defined by anti-isotypic antibodies.
AM Lew, WL Maloy, F Koning, R Valas, JE Coligan
J Immunol | Published : 1987
Anti-isotypic reagents against the human T cell receptor (TcR) were made by immunizing rabbits with peptides which corresponded to sites within the constant region of the alpha- and beta-chains. These antibodies were shown to immunoprecipitate a heterodimer of 80,000 to 90,000 m.w. that could be reduced to chains of 44,000 to 50,000 and 37,000 to 40,000 m.w. In addition, an anti-peptide serum against CD3 delta-chain was made. The anti-alpha peptide serum reacted with all human TcR (from phytohemagglutinin-stimulated lymphocytes, cytotoxic T cell clones, and the T cell leukemias: HPB-ALL, Jurkat, JA3, and JM), and the anti-beta peptide serum reacted with only human TcR of the C beta 2 isotype..View full abstract