IL-4 treatment rapidly induced tyrosine phosphorylation of insulin receptor substrate ( IRS ) -1 and IRS-2 in 1D4 but not in E1C3 cells .
il-4 treatment rapidly induced tyrosine phosphorylation of insulin receptor substrate ( irs ) -1 and irs-2 in 1d4 but not in e1c3 cells .
O O O O B-amino_acid_monomer O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-protein_molecule O B-cell_line O O O B-cell_line I-cell_line O