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fxn

Gene
FXN
Protein
Frataxin, mitochondrial
Organism
Homo sapiens
Length
210 amino acids
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.
Similarity
Belongs to the frataxin family.
Mass
23.135 kDa
Sequence
MWTLGRRAVAGLLASPSPAQAQTLTRVPRPAELAPLCGRRGLRTDIDATCTPRRASSNQRGLNQIWNVKKQSVYLMNLRKSGTLGHPGSLDETTYERLAEETLDSLAEFFEDLADKPYTFEDYDVSFGSGVLTVKLGGDLGTYVINKQTPNKQIWLSSPSSGPKRYDWTGKNWVYSHDGVSLHELLAAELTKALKTKLDLSSLAYSGKDA

Gene
FXN
Protein
Frataxin, mitochondrial
Organism
Macaca fascicularis
Length
210 amino acids
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. Modulates the RNA-binding activity of ACO1 (By similarity).
Similarity
Belongs to the frataxin family.
Mass
23.133 kDa
Sequence
MWTFGRRAVAGLLASPSPAQAQTLTRAPRLAELAQLCSRRGLRTGINATRTTHHTSSNLRGLNQIRNVKRQSVYLMNLRKSGTLGHPGSLDDTTYERLAEETLDSLAEFFEDLADKPYTFEDYDVSFGSGVLTVKLGGDLGTYVINKQTPNKQIWLSSPSSGPKRYDRTGKNWVYSHDGVSLHELLGAELTKALKTKLDLSSLAYSGKDA

Gene
Fxn
Protein
Frataxin, mitochondrial
Organism
Rattus norvegicus
Length
208 amino acids
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. Modulates the RNA-binding activity of ACO1 (By similarity).
Similarity
Belongs to the frataxin family.
Mass
23.066 kDa
Sequence
MWTFGRRAAAGLLPRTASRASAWVRNPRGRERIGTCGRRGLHVTANADAIRHSHLNLHYLGQILNIKKQSVCVVHLRNSGTLGNPSSLDETAYERLAEETLDALAEFFEDLADKPYTLKDYDVSFGDGVLTIKLGGDLGTYVINKQTPLLYLWFSGPCSGPKRYDWTGKNWVYSHDGVSLHELLARELTEALNTKLDLSSLAYSGKGT

Gene
Fxn
Protein
Frataxin, mitochondrial
Organism
Mus musculus
Length
207 amino acids
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. Modulates the RNA-binding activity of ACO1 (By similarity).
Similarity
Belongs to the frataxin family.
Mass
22.924 kDa
Sequence
MWAFGGRAAVGLLPRTASRASAWVGNPRWREPIVTCGRRGLHVTVNAGATRHAHLNLHYLQILNIKKQSVCVVHLRNLGTLDNPSSLDETAYERLAEETLDSLAEFFEDLADKPYTLEDYDVSFGDGVLTIKLGGDLGTYVINKQTPNKQIWLSSPSSGPKRYDWTGKNWVYSHDGVSLHELLARELTKALNTKLDLSSLAYSGKGT

Gene
fxn
Protein
Frataxin, mitochondrial
Organism
Dictyostelium discoideum
Length
193 amino acids
Function
Promotes the biosynthesis of heme as well as the 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+). May be able to store large amounts of the metal in the form of a ferrihydrite mineral by oligomerization (By similarity).
Similarity
Belongs to the frataxin family.
Mass
22.206 kDa
Sequence
MIFNFLNKASNKTHTKLLLFSSIRNRILINNISSTSKWSSINNNNKQSSVSKTNIFIITTHNKQQQQLSKSFSTINNNTKPISDVNLFHDIVDEEFELFVDRLEILSEANTCEGFEVEGNDGVLTIIVGNKGTYVINKQTPNRQIWWSSPLSGPKRFDYDSVEKRWVDNRDGTPLRQLLNSEINTLCKYDMEI