Figure 7

Two-dimensional blue native/SDS-PAGE and immunoblotting of solubilized BY-2 plasma membranes. Native, n-octyl-β-D-glucoside-soluble, plasma membrane protein complexes were separated in a first dimension using Blue native PAGE. After denaturation, the complexes were thereafter separated into their subunits in a second dimension using SDS-PAGE. After separation, callose synthase (180 kDa), sucrose synthase (90 kDa) and β-tubulin (50 kDa) were detected by immunoblotting in separate blots with the respectively specific antibodies. The figure is a composite of these separate blots. Native molecular masses for the first dimension are denoted in kDa below the blots. The upper line depicts the start and direction of the first dimension separation gel.