tokens: SCL protein production was examined in a variety of hemopoietic cell lines by immunoblotting using specific polyclonal antisera .
folded_tokens: scl protein production was examined in a variety of hemopoietic cell lines by immunoblotting using specific polyclonal antisera .
labels: B-protein_molecule I-protein_molecule O O O O O O O B-cell_line I-cell_line I-cell_line O O O O B-other_organic_compound I-other_organic_compound O