Movie 2.

Movies of GFP-GtaC^c-s translocation in strains stimulated with 1 μM folate. Time-lapse video with images every 30 sec. Stimulant added at time 0 min (image 2, contains red dot). Order of movies: 2A: wild-type cells 2B: erk2^- cells 2C: erk2^- (Erk2) cells 2D: erk1^- cells