tokens: Jak1 , Jak2 , and Stat1 were immunoprecipitated from control and interferon-treated cells , and tyrosine phosphorylation of these proteins , detected by antiphosphotyrosine immunoblotting was used to measured their activation .
folded_tokens: jak1 , jak2 , and stat1 were immunoprecipitated from control and interferon-treated cells , and tyrosine phosphorylation of these proteins , detected by antiphosphotyrosine immunoblotting was used to measured their activation .
labels: B-protein_molecule O B-protein_molecule O O B-protein_family_or_group O O O O O B-cell_line I-cell_line O O B-amino_acid_monomer O O O O O O O B-amino_acid_monomer O O O O O O O O