Fig. 3.
Western blot analysis of plasma GPIbα. PPP was immunoprecipitated with MBC 142.2, analyzed by SDS-PAGE on an 8% to 16% exponential gradient in the presence of β-mercaptoethanol, and immunoblotted with MBC 142.6. WT is a normal non–family member wild-type sample. The patient's plasma contains a soluble GPIbα.