The 150 bp hEpoR promoter exhibited high and low activity in erythroid OCIM1 and K562 cells , respectively , reflecting the high and low levels of constitutive hEpoR expression .
the 150 bp hepor promoter exhibited high and low activity in erythroid ocim1 and k562 cells , respectively , reflecting the high and low levels of constitutive hepor expression .
O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-cell_line O B-cell_line I-cell_line O O O O O O O O O O O B-protein_molecule O O