Transferrins
Transferrins are not limited to only binding to iron but also to different metal ions.
Tovey LA, Lathe GH. Caeruloplasmin and green plasma in women taking oral contraceptives, in pregnant women, and in patients with rheumatoid arthritis. Lancet. 1968 Sep 14;2(7568):596-600. PMID: 4175158.
ABSTRACT: Of blood donations reaching the Leeds Regional Blood Transfusion Laboratory about 1% have green plasma. Most of these come from women taking oral contraceptives, who constitute about 6% of the blood-donor population. The three conditions in which green plasma is found all have elevated amo
Ceruloplasmin carries more than 95% of the total copper in healthy human plasma and in addition plays a role inĀ iron metabolism. It was first described in 1948.
CeruloplasminĀ (orĀ caeruloplasmin) is aĀ ferroxidaseĀ enzymeĀ that in humans is encoded by theĀ CPĀ gene. Ceruloplasmin is the majorĀ copper-carrying protein in the blood, and in addition plays a role inĀ iron metabolism. It was first described in 1948. Another protein,Ā hephaestin, is noted for it