tokens: The BAT box and Oct-2 were also implicated in the induction of CD20 in the pre-B cell line , PB-697 , via phorbol esters .
folded_tokens: the bat box and oct-2 were also implicated in the induction of cd20 in the pre-b cell line , pb-697 , via phorbol esters .
labels: O B-DNA_domain_or_region I-DNA_domain_or_region O B-protein_molecule O O O O O O O B-protein_molecule O O B-cell_line I-cell_line I-cell_line O B-cell_line O O B-other_organic_compound I-other_organic_compound O