Figure 6. The effect of “KK” loop mutation on FUS subcellular localization.
The GFP-tagged wild-type full-length FUS (top), truncated FUS without the C-terminal NLS (FUS-ΔNLS, middle) and the “KK” loop mutant (FUS-ΔNLS-AAA, bottom) were transfected into N2a cells. Representative confocal microscopic images of GFP-FUS and DAPI-stained nucleus are shown. The “KK” loop mutation reversed the cytoplasmic accumulation of FUS-ΔNLS and showed even distribution in both nucleus and cytoplasm. The scale bar is 10 μm.