In contrast , stat1 proteins were not tyrosine phosphorylated after IL-2 ligation , whereas tyrosine -phosphorylated stat1 proteins ( 91 and 84 kDa proteins ) were translocated to the nucleus following interferon-gamma treatment of HeLa cells .
in contrast , stat1 proteins were not tyrosine phosphorylated after il-2 ligation , whereas tyrosine -phosphorylated stat1 proteins ( 91 and 84 kda proteins ) were translocated to the nucleus following interferon-gamma treatment of hela cells .
O O O O O O O B-amino_acid_monomer O O B-protein_molecule O O O B-amino_acid_monomer O O O O O O O O O O O O O O B-cell_component O B-protein_molecule O O B-cell_line I-cell_line O