Phalloidin staining in Par1b-MDCK cells ±dox and IRSp53KD cells ±dox. (top) Phalloidin staining in Par1b-MDCK cells ±dox. (bottom) Phalloidin staining in IRSp53KD cells ±dox. Confocal x-y stacks with 0.3-µm step size are shown.