tokens: To achieve a better understanding of the mechanism of transactivation by Tax of human T-cell leukemia virus type 1 Tax -responsive element 1 ( TRE-1 ) , we developed a genetic approach with Saccharomyces cerevisiae .
folded_tokens: to achieve a better understanding of the mechanism of transactivation by tax of human t-cell leukemia virus type 1 tax -responsive element 1 ( tre-1 ) , we developed a genetic approach with saccharomyces cerevisiae .
labels: O O O O O O O O O B-other_name O B-protein_molecule O B-virus I-virus I-virus I-virus I-virus I-virus B-protein_molecule O O O O B-DNA_domain_or_region O O O O O O O O B-mono_cell I-mono_cell O