Phosphorylation of STAT5 by TEL/PDGFβR in Ba/F3 cells.

Ba/F3 cells that express TEL/PDGFβR were lysed and immunoprecipitated with antibody against STAT5. The immune complex was probed with either 4G10 antiphosphotyrosine (anti-PTYR) antibody (top) or anti-STAT5 antibody (bottom).