<unk>  (or<unk>  is a ferroxidase enzyme that in humans is encoded by the<unk>  gene.<unk>  is the major copper-carrying protein in the blood, and in addition plays a role in iron metabolism. It was first described in 1948. Another protein, hephaestin, is noted for its homology to<unk> , and also participates in iron and probably copper metabolism.
Ceruloplasmin
Hepcidin
Hemoglobin
Ophanin
Retinol-binding protein
Beta-2 transferrin
Ferritin
Lumirubin