Summary

Name FXN
Full Name Frataxin, mitochondrial
Synonyms Friedreich ataxia protein, Fxn | FRDA, X25
Primary ID Q16595
Links - -
Type protein
Relations 2
Function Promotes the biosynthesis of heme and assembly and repair of iron-sulfur clusters by delivering Fe(2+) to proteins involved in these pathways. May play a role in the protection against iron-catalyzed oxidative stress through its ability to catalyze the oxidation of Fe(2+) to Fe(3+); the oligomeric form but not the monomeric form has in vitro ferroxidase activity. May be able to store large amounts of iron in the form of a ferrihydrite mineral by oligomerization; however, the physiological relevance is unsure as reports are conflicting and the function has only been shown using heterologous overexpression systems. Modulates the RNA-binding activity of ACO1.

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates quantity by destabilization img/direct_inhibition.png phosphorylation FXN 0.2
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding Mitochondrial Fe-S Cluster Assembly Complex 0.783
Publications: 1 Organism: In Vitro