T Cell Subsets Approximately 65%of mature T cells that leave the thymus display the CD2+CD3+CD4+CD8- phenotype (CD4+cells),while approximately 35%display the CD2+CD3+CD4-CD8+ phenotype (CD8+cells) Antigen recognition with a ternary complex T helper cell 9RR8888RR989R8988R 888 8g58888g8888888888 TCell receptor Class II MHC MoleculesT Cell Subsets Approximately 65% of mature T cells that leave the thymus display the CD2+CD3+CD4+CD8- phenotype (CD4+ cells), while approximately 35% display the CD2+CD3+CD4-CD8+ phenotype (CD8+ cells)