Fig. 4. Cell body displacement stimulates formation of radial bundles of actin filaments that terminate at the cell periphery. Video sequences show a B16 melanoma cell expressing either GFP-actin (A, example from nine cells) or GFP-calponin h1 (B, example from five cells.) that was subjected to cell body manipulation at time 0. The chevrons in (A) indicate regions of bundle formation. Boxed regions in (B) are shown at higher magnification in the right hand panels.

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