Similarly , a human immunodeficiency virus promoter , whose activity is controlled through chi B factors , was found to be active in the IL-2 producing EBV- B cells , but inactive in the non- IL-2 -producing cells .
similarly , a human immunodeficiency virus promoter , whose activity is controlled through chi b factors , was found to be active in the il-2 producing ebv- b cells , but inactive in the non- il-2 -producing cells .
O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O O O O O B-protein_molecule O O B-cell_type I-cell_type O O O O O B-cell_line B-protein_molecule O O O