Dyes and Fluorophores 

This kit contains the NucView™488 Caspase-3 Substrate and the MitoView™633 mitochondrial dye. The kit provides a convenient tool for profiling apoptotic cells based on caspase-3 activity and changes in the mitochondrial membrane potential using either fluorescence microscopy or flow cytometry. The bi-functional NucView™488 Caspase-3 Substrate is able to detect both intracellular caspase-3 and at the same time stain the cell nucleus, which is known to undergo morphological changes during apoptosis. MitoView™633 is a far-red fluorescent mitochondrial dye. The staining is dependent upon the mitochondrial membrane potential; thus, apoptotic cells exhibit a much lower MitoView™633 dye staining compared to healthy cells. Furthermore, the spectral separation of these two dyes minimizes fluorescence overlap.