Movie S3.

Photoactivatable Rac1 mediated polarization of PGCs. Time-lapse movies of PGCs expressing photoactivatable Rac1 (PA-Rac1). Lifeact (magenta) labels the cell front and the rear markers (Esyt2a and Ezrin) are in green. The circle in cyan marks the photoactivated area. The movies show the same cells presented in Fig. 2c, c’. Frame interval is 7,75 sec. Time in minutes and seconds. Scale bars 10μm.