FIGURE 1:
(A) Live image of DyLight550-actin (DL-actin) speckles in a keratocyte with epifluorescence microscopy. (B) Positions of appearance of DL-actin speckles in a 34-s time window (left) and disappearance of these speckles (right) are indicated by pink dots over an image of the keratocyte. Bars, 10 μm. (C) Lifetime distribution of DL-actin speckles in lamellipodia of keratocytes.