NCIt definition : Frataxin, mitochondrial (210 aa, 23 kDa) is encoded by the human FXN gene. This protein
is involved in [2Fe-2S] cluster biogenesis and heme biosynthesis.;
NCIt note : Frataxin, mitochondrial is processed in two steps by mitochondrial processing peptidase
(MPP), which cleaves the precursor to intermediate form (i-FXN) and then converts
i-FXN to yield the predominant form, frataxin mature form (frataxin(81-210); m81-FXN).
Additional processed forms, including frataxin(56-210) (m56-FXN) and frataxin(78-210)
(d-FXN; m78-FXN), result from irregularities in the normal maturation process. (UniProt);