[{"from": "human", "value": "Provide a brief overview of this molecule. [Cu]"}, {"from": "gpt", "value": "The molecule is a transition metal and a trace element in the body. It is important to the function of many enzymes including cytochrome c oxidase, monoamine oxidase and superoxide dismutase. Copper is commonly used in contraceptive intrauterine devices (IUD)."}]