In vitro binding of HFE to the cation-independent mannose-6 phosphate receptor.
Hereditary hemochromatosis is most frequently associated with mutations in HFE, which encodes a class Ib histocompatibility protein. HFE binds to the transferrin receptor-1 (TfR1) in competition with iron-loaded transferrin (Fe-Tf). HFE is released from TfR1 by increasing concentrations of Fe-Tf, and free HFE may then regulate iron homeostasis by binding other ligands. To search for new HFE ligands we expressed recombinant forms of HFE in the human cell line 293T. HFE protein was purified, bi...Expand abstract
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