Fig. 4. (a) Confocal fluorescence images of MCF7 cells treated with C2 and Bafilomycin A. The same cells were transduced with CellLight ER-GFP. The cells were imaged at λ _ex = 405 nm and λ _em = 550–610 nm for the complexes and at λ _ex = 488 nm and λ _em = 490–540 nm for CellLight ER-GFP. (b) Confocal fluorescence images of MCF7 cells transduced with CellLight Golgi-GFP or treated with MitoTracker, LysoTracker or C2.