FIGURE 6:
PA production on the plasma membrane is required for myocytes to fuse with nascent myotubes. (A) Localization of GFP-PABD and mutant GFP-PABD in proliferating L6 myoblasts. (B) At day 2 of differentiation, GFP-PABD was detected on the PM of mononuclear myocytes (arrows) but inside myotubes (arrowhead). In PLD1-shRNA culture, fewer myocytes with cell surface localization of GFP-PABD were detected. (C) Quantification of PA sensor (GFP-PABD) on the PM of Luc-shRNA and PLD1-shRNA cells (n = 3, *p < 0.05).