Nature Communications (Aug 2018)
Calcium is an essential cofactor for metal efflux by the ferroportin transporter family
Abstract
Ferroportin (Fpn) is essential for mammalian iron homeostasis as it exports iron from cells into blood circulation, but the molecular mechanisms of Fpn-mediated iron transport remain obscure. Here the authors use biophysical approaches to reveal that Ca2+ is a required cofactor for Fpn transport activity.