Activation of CD34 expression in hematopoietic cell lines is dependent on the presence of intact MZF-1 binding sites .
activation of cd34 expression in hematopoietic cell lines is dependent on the presence of intact mzf-1 binding sites .
O O B-protein_molecule O O B-cell_line I-cell_line I-cell_line O O O O O O O B-DNA_domain_or_region O O O