Fig. 5. GEM2 labeling of GFP-tagged proteins specific to different compartments in human cells.
GFP-tagged proteins were overexpressed in HeLa cells with a GEM2/adaptor AAVS1 knock-in. Cells were cultured for 48 h after transfection of GFP-tagged protein plasmids. Rapalog treatment times are indicated for each target. For G3BP1, GEM2 labeling was induced before or after induction of stress granule formation via arsenite treatment. These are representative images, and the experiment was performed twice with similar results.