Confocal images of HeLa cells transiently transfected with MannosidaseII-GFP (green) and immunostained with GFP-Booster Alexa Fluor 568 (red). Nuclei were stained with DAPI (blue). Scale bar, 10 μm. Images were recorded at the Core Facility Bioimaging at the Biomedical Center, LMU Munich.