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Video 1
ALK6 is translocated from cell body to filopodia in MECs after cells were treated with BMP6 for 4 h. MECs were transfected with the GFP-tagged ALK6 constructs. Green fluorescent image series were taken every 30 s for 120 s after cells were treated with BMP6 for 4 h. Cells were maintained at 37°C.