To further investigate the effects of E2a-Pbx1 on the B cell progenitors , we conditionally expressed E2a-Pbx1 under control of a metal response element in hematopoietic precursor cell lines in vitro .
to further investigate the effects of e2a-pbx1 on the b cell progenitors , we conditionally expressed e2a-pbx1 under control of a metal response element in hematopoietic precursor cell lines in vitro .
O O O O O O B-protein_molecule O O B-cell_type I-cell_type I-cell_type O O O O B-protein_molecule O O O O O O O O B-cell_line I-cell_line I-cell_line I-cell_line O O O