Ferroportin
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Ferroportin is a transmembrane protein that transports iron from the inside of a cell to the outside of it. It is found on the surface of cells that store or transport iron, including:
- Enterocytes in the duodenum
- Hepatocytes
- Macrophages of the reticuloendothelial system.
Recent research suggests that ferroportin is the key molecule regulated by hepcidin, the apparent "master regulator" of human iron metabolism.
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