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Time-lapse confocal microscopy of U2B"-GFP in living BY-2 cells. Projections of series of confocal optical sections are shown at each time point. Coiled body marked with an arrow moves from the periphery of the nucleoplasm to the periphery of the nucleolus, after which it moves along the periphery of the nucleolus and finally fuses with another coiled body. Other coiled bodies also show movements. Bar, 5 μm.
