tokens: The human T-cell leukemia virus type I ( HTLV-I ) and HTLV-II Tax proteins are potent transactivators of viral and cellular gene expression .
folded_tokens: the human t-cell leukemia virus type i ( htlv-i ) and htlv-ii tax proteins are potent transactivators of viral and cellular gene expression .
labels: O O O O O O O O O O O O O O O O B-protein_family_or_group O O O O O O O