A copper transporter is a protein that helps move copper ions within cells and throughout the body. Copper is an essential trace mineral necessary for various biological functions, including energy production and the formation of red blood cells. These transporters ensure that copper is delivered to the right locations, preventing both deficiency and toxicity. One well-known copper transporter is ATP7A, which plays a crucial role in maintaining copper homeostasis. It helps absorb copper from the diet and regulates its release into the bloodstream. Proper functioning of copper transporters is vital for overall health, as imbalances can lead to conditions like Wilson's disease or Menkes disease.