Fig. 2.
Time course of ABL kinase activation in transfected Ba/F3 cell lines. The indicated cell lines were stimulated with EPO (2 U/mL) for 0, 15, and 90 minutes. Proteins phosphorylated on tyrosine were visualized by antiphosphotyrosine immunoblotting using 4G10. The location of the chimeric receptor proteins is indicated by a bracket.