Fig. 4. Differential binding of SFKs with the GST-β3-spliced variants. (A) Amino acid sequences of β3 variants used in this study. Identical residues between the variants are boxed. (B) Various GST-β3 tails were incubated with the platelet lysates. The captured proteins were subjected to SDS-PAGE followed by western blot analyses using indicated antibodies. The protein loading is shown in the Coomassie stain.