We have found that it is phosphorylated , predominantly on serine residues , when transiently overexpressed in 293 cells .
we have found that it is phosphorylated , predominantly on serine residues , when transiently overexpressed in 293 cells .
O O O O O O O O O O B-amino_acid_monomer O O O O O O B-cell_line I-cell_line O