tokens: The transfected cell lines expressed elevated levels of spi-1 mRNA and protein and high Spi-1 -DNA binding activity .
folded_tokens: the transfected cell lines expressed elevated levels of spi-1 mrna and protein and high spi-1 -dna binding activity .
labels: O B-cell_line I-cell_line I-cell_line O O O O B-protein_molecule O O O O O B-protein_molecule O O O O