Moreover , this site is occupied by BSAP in vivo in a CD19-expressing B-cell line but not in plasma or HeLa cells .
moreover , this site is occupied by bsap in vivo in a cd19-expressing b-cell line but not in plasma or hela cells .
O O O O O O O B-protein_molecule O O O O B-cell_line B-cell_line I-cell_line O O O B-cell_type O B-cell_line I-cell_line O