tokens: Using the yeast two-hybrid system to screen for proteins which interact with Tax1 , we isolated the B subunit of the CCAAT binding protein NF-Y from a HeLa cDNA library .
folded_tokens: using the yeast two-hybrid system to screen for proteins which interact with tax1 , we isolated the b subunit of the ccaat binding protein nf-y from a hela cdna library .
labels: O O B-other_artificial_source I-other_artificial_source I-other_artificial_source O O O O O O O B-protein_molecule O O O O B-protein_subunit I-protein_subunit O O B-protein_molecule I-protein_molecule I-protein_molecule B-protein_molecule O O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O