tokens: The Tax protein of human T-cell lymphotropic virus type 1 ( HTLV-1 ) is a 40-kDa transcriptional activator which is critical for HTLV-1 gene regulation and virus-induced cellular transformation .
folded_tokens: the tax protein of human t-cell lymphotropic virus type 1 ( htlv-1 ) is a 40-kda transcriptional activator which is critical for htlv-1 gene regulation and virus-induced cellular transformation .
labels: O B-protein_molecule I-protein_molecule O B-virus I-virus I-virus I-virus I-virus I-virus O B-virus O O O B-protein_molecule I-protein_molecule I-protein_molecule O O O O B-virus O O O B-other_name I-other_name I-other_name O