Fig. 4. Ssm4p is essential for the oscillatory nuclear movement in shmooing fission yeast cells. (A,B) cyr1
sxa2
cells (A) and cyr1
sxa2
ssm4
cells (B) carrying a nuclear GFP marker were treated with pheromone for 6 hours, placed on a slide, and filmed under a fluorescent microscope. Images were taken every minute. Bar, 3 µm.