Fig. 5.

GRP23 enhances the interactions between MEF8 and PPR-E proteins OTP71 and OTP87 in mitochondria. Arabidopsis protoplasts transformed with OTP71-nYFP or OTP87-nYFP together with MEF8-cYFP, in the absence or presence of GRP23, were observed by confocal microscopy 24 h after transformation. The PPR-E protein OTP71 is not DYW2-dependent and the interaction between OTP71 and DYW2 was used as a negative control. All images were obtained using the same setting and are representative of at least three independent experiments. (Scale bars, 5 μm.)