Fig 2. Biochemical characterization of G634R and R203W MASP-2 proteins.
A-C. The ability of G634R and R203W MASP-2 proteins to be expressed, secreted and to auto-activate was determined by SDS-PAGE/immunoblotting under reducing (A, B) and non-reducing conditions (C) in cell lysates (A) and cell supernatant (B, C). Binding to recombinant MBL was determined in cell lysates (D) and cell supernatant (E) by co-immunoprecipitation experiments by using an antibody directed against MBL (IP). Housekeeping proteins β actin and macrophage migration inhibitory factor (MIF) were used as loading controls for cell lysates and cell supernatant respectively.