Visualization of the cysteine level during Golgi stress using a novel Golgi-targeting highly specific fluorescent probe

A novel Golgi-targeting Cys-specific fluorescent probe (Gol-Cys) was synthesized. Probe Gol-Cys is not only sufficiently sensitive to native Cys in living cells and zebrafish, but also can be used for monitoring the Cys level during Golgi stress.