tokens: This cooperation was also required to induce the sustained proliferation of differentiation-blocked erythroblasts in response to ligand activation of the endogenous tyrosine kinase receptor c-Kit .
folded_tokens: this cooperation was also required to induce the sustained proliferation of differentiation-blocked erythroblasts in response to ligand activation of the endogenous tyrosine kinase receptor c-kit .
labels: O O O O O O O O O B-other_name O B-cell_line I-cell_line O O O B-other_name I-other_name O O B-protein_molecule B-amino_acid_monomer O O B-protein_molecule O