Figure 3

Cell surface expression of hp75TNFR isoforms on transduced L929 cells. Expression of hp75TNFR isoforms on L929 cells either transduced with control vector (shaded peak), hp75TNFR (black line) or hicp75TNFR (gray line) was analyzed by flow cytometry with (A) or without (B) permeabilization. After permeabilization the same number of epitopes were accessible in both cell lines. Without permeabilization cells expressing hp75TNFR present more epitopes on the cell surface.