lacks_plasma_membrane_part has plasma membrane part lymphocyte natural helper lymphocyte alpha-beta T cell receptor complex CD19 molecule integrin alpha-M integrin alpha-X CD3 epsilon T-cell surface glycoprotein CD8 alpha chain KLRB1-like protein mast/stem cell growth factor receptor lymphocyte antigen 6A-2/6E-1 lymphocyte antigen 76 (mouse)