Fig. 7.

Protrusion of FCM in developing myotube. (A) A single confocal slice through the middle of a primary myoblast and its associated myofiber. Kirre protein (turquoise) and Sns protein (green) are highly enriched at the point of protrusion. Actin (red) is highly restricted to the fusion-competent myoblast, although faint actin fibers are visible in the myotube. A dotted line outlines the surface of the myotube and fusion-competent myoblast. Reproduced, with permission, from Haralalka et al. (Haralalka et al., 2011). (B) Schematic of the image shown in A.