tokens: Furthermore , introduction of exogenous GATA-1 in both MEL cells and Xenopus embryos and explants relieves the block to erythroid differentiation imposed by PU . 1 .
folded_tokens: furthermore , introduction of exogenous gata-1 in both mel cells and xenopus embryos and explants relieves the block to erythroid differentiation imposed by pu . 1 .
labels: O O O O O B-protein_molecule O O B-cell_line I-cell_line O B-multi_cell I-multi_cell O O O O O O B-other_name I-other_name O O B-protein_molecule I-protein_molecule I-protein_molecule O