Fig. 6. Binding of IAF-labeled PEVKII to purified rabbit psoas myofibrils. (A) Confocal microscopic images of a myofibril incubated with a fluorescently labeled PEVKII segment. Phase-contrast (upper panel) and the corresponding fluorescence (lower panel) microscopic images are shown. Bar, 2 µm. (B) Grayscale intensity along the myofibril axis for both the phase contrast and fluorescence microscopic images.