Mutations in Rnt1p affect division and microtubule movement. Photos of cells expressing Rnt1p-K45/I, Rnt1p-D247/R, or Rnt1p were taken every 10 min, and representative pictures are shown (see videos in supplementary material videos 1, 5, and 6). The times from the beginning of the acquisitions are indicated in minutes on each photo. The microtubule complex revealed by GFP-Tub3p is shown in green. Yellow bars, 2 μm.