APOPT1 Mutations and APOPT1 Localization (A–C) Mutations found in this study are positioned (arrows) against schematic representations of APOPT1 (A), cDNA (B), and protein (C). (D) The green fluorescence pattern of an APOPT1-GFP fusion protein starting from the methionine 14, transiently expressed in control fibroblasts (center), coincide with that obtained with mitotracker red (left), to give a yellow overlay pattern (right). Scale bar represents 10 μm.