Contact: Caroline Perry
Caption: In comparison to those in normal cells (top row), fluorescent proteins in ATP-depleted cells (bottom row) took much longer to diffuse from one side of a cell to another—the distance indicated by the red dotted line. According to the study in Cell, ATP-driven processes produce the fluctuating forces required for proper transport within the cytoplasm.
Credit: Image courtesy of Ming Guo, Harvard SEAS.
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