The tax protein of human T-cell leukemia virus type 1 mediates the transactivation of the c-sis/platelet-derived growth factor-B promoter through interactions with the zinc finger transcription factors Sp1 and NGFI-A/Egr-1 .
the tax protein of human t-cell leukemia virus type 1 mediates the transactivation of the c-sis/platelet-derived growth factor-b promoter through interactions with the zinc finger transcription factors sp1 and ngfi-a/egr-1 .
O B-protein_molecule I-protein_molecule O B-virus I-virus I-virus I-virus I-virus I-virus O O 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 B-protein_family_or_group I-protein_family_or_group B-protein_family_or_group I-protein_family_or_group B-protein_molecule O B-protein_molecule O