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Time-lapse video of two persistent migrating (slow and fast) TSPAN4-GFP L929 cells. The recording time interval is 7.5 min/frame. The red line indicates the start position, and the blue line indicates the end position. Yellow arrows indicate the position of migrasome formation. The mean speed during the recording time is labeled above the images. The display rate is 6 frames/s. Scale bar, 20 μm.
