Organelle-selective fluorescent Cu2+ ion probes: revealing the endoplasmic reticulum as a reservoir for Cu-overloading†
Abstract
Two novel Cu2+ sensors, 1 and 2, bearing naphthalimide and a DPA moiety were synthesized to study copper accumulation in organelles by selective Cu2+ sensing. The ER-selective Cu2+ sensor 1 that we developed serves as a valuable tool for understanding the subcellular compartmentalization and roles of copper ions in physiology and pathophysiology.