In the presence of Epo , c-myb mRNA declined and 20% of K562 cells synthesized Hb regardless of antisense myb RNA expression .
in the presence of epo , c-myb mrna declined and 20% of k562 cells synthesized hb regardless of antisense myb rna expression .
O O O O B-protein_molecule O B-RNA_molecule I-RNA_molecule O O O O B-cell_line I-cell_line O B-protein_molecule O O B-RNA_molecule I-RNA_molecule I-RNA_molecule O O