tokens: HL-60 cells were found to express mafK mRNA , indicating the presence of genuine NF-E2 complex in the cells .
folded_tokens: hl-60 cells were found to express mafk mrna , indicating the presence of genuine nf-e2 complex in the cells .
labels: B-cell_line I-cell_line O O O O B-RNA_molecule I-RNA_molecule O O O O O O B-protein_complex I-protein_complex O O O O