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. 2016 Jan 4;212(1):39–49. doi: 10.1083/jcb.201510063

Figure 2.

Figure 2.

PAR proteins protect against cytokinesis failure when formin activity is reduced. (A) RNAi depletion of cortical PAR proteins disrupts A-P polarity. (B and C) Depletion of cortical PAR proteins leads to cytokinesis failure in formin(ts) (B) but not myosin-II(ts) mutant embryos (C) at semipermissive temperature (n = 10, all conditions; mean ± SEM). (D) Schematic of cortical line scan used for analysis in E. The arrowhead points to the site of initial furrow formation. (E) The A-P polarity boundary, where PAR-2 levels start to increase relative to PAR-6 levels, coincides with the site of furrow onset (gray line; n = 10; mean ± SD). Bars, 10 µm. AO, anaphase onset; a.u., arbitrary units; b, background. cyk-1 = formin; nmy-2 = myosin-II.