Transferrin (TF) is the main transporter of iron in the blood. The apo-form of TF can take up two ferric iron ions (Fe3+) to form holoTF (Wally et al. 2006).
Wally, J, Halbrooks, PJ, Vonrhein, C, Rould, MA, Everse, SJ, Mason, AB, Buchanan, SK
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