tokens: In contrast to parental U937 cells , PKC-zeta cells constitutively expressed mRNA transcripts for c-jun and a low mobility AP-1 binding activity .
folded_tokens: in contrast to parental u937 cells , pkc-zeta cells constitutively expressed mrna transcripts for c-jun and a low mobility ap-1 binding activity .
labels: O O O O B-cell_line I-cell_line O B-protein_molecule O O O B-RNA_family_or_group O O B-DNA_domain_or_region O O O O B-protein_molecule O O O