Frataxin
Protein-coding gene in the species Homo sapiens / From Wikipedia, the free encyclopedia
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"FXN" redirects here. For the railway station, see Foxton railway station.
Frataxin is a protein that in humans is encoded by the FXN gene.[5][6]
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It is located in the mitochondrion and Frataxin mRNA is mostly expressed in tissues with a high metabolic rate. The function of frataxin is not clear but it is involved in assembly of iron-sulfur clusters. It has been proposed to act as either an iron chaperone or an iron storage protein. Reduced expression of frataxin is the cause of Friedreich's ataxia.