Since the cells were not treated with cytokines before the nuclear proteins were extracted , we conclude that these factors are constitutively activated in vivo .
since the cells were not treated with cytokines before the nuclear proteins were extracted , we conclude that these factors are constitutively activated in vivo .
O O O O O O O B-protein_family_or_group O O B-protein_family_or_group I-protein_family_or_group O O O O O O O O O O O B-other_name I-other_name O