tokens: BACKGROUND : The Bcl-6 gene product , a nuclear phosphoprotein , is expressed independently of Bcl-6 gene rearrangement .
folded_tokens: background : the bcl-6 gene product , a nuclear phosphoprotein , is expressed independently of bcl-6 gene rearrangement .
labels: O O O B-protein_molecule O O O O B-protein_family_or_group I-protein_family_or_group O O O O O B-protein_molecule O O O