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FXN protein (human) - STRING interaction network
"FXN" - Frataxin, mitochondrial in Homo sapiens
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query proteins and first shell of interactors
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second shell of interactors
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proteins of unknown 3D structure
filled nodes:
some 3D structure is known or predicted
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Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
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[Homology]
Score
FXNFrataxin, mitochondrial; 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 [...] (210 aa)    
Predicted Functional Partners:
ISCU
Iron-sulfur cluster assembly enzyme ISCU, mitochondrial; Scaffold protein for the de novo synthesis of iron- sulfur (Fe-S) clusters within mitochondria, which is required for maturation of both mitochondrial and cytoplasmic [2Fe-2S] and [4Fe-4S] proteins. First, a [2Fe-2S] cluster is transiently assembled on the scaffold protein ISCU. In a second step, the cluster is released from ISCU, transferred to a glutaredoxin GLRX5, followed by the formation of mitochondrial [2Fe-2S] proteins, the synthesis of [4Fe-4S] clusters and their target-specific insertion into the recipient apoproteins. [...] (167 aa)
     
 
  0.997
LYRM4
LYR motif-containing protein 4; Required for nuclear and mitochondrial iron-sulfur protein biosynthesis; LYR motif containing (96 aa)
     
  0.997
NFS1
Cysteine desulfurase, mitochondrial; Catalyzes the removal of elemental sulfur from cysteine to produce alanine. It supplies the inorganic sulfur for iron- sulfur (Fe-S) clusters. May be involved in the biosynthesis of molybdenum cofactor (457 aa)
     
 
  0.996
PMPCB
Mitochondrial-processing peptidase subunit beta; Cleaves presequences (transit peptides) from mitochondrial protein precursors; M16 metallopeptidases (489 aa)
     
  0.994
HSCB
Iron-sulfur cluster co-chaperone protein HscB, mitochondrial; Acts as a co-chaperone in iron-sulfur cluster assembly in mitochondria; Belongs to the HscB family (235 aa)
     
 
  0.993
ACO2
Aconitate hydratase, mitochondrial; Catalyzes the isomerization of citrate to isocitrate via cis-aconitate; Belongs to the aconitase/IPM isomerase family (780 aa)
     
  0.991
FECH
Ferrochelatase, mitochondrial; Catalyzes the ferrous insertion into protoporphyrin IX; Belongs to the ferrochelatase family (429 aa)
     
  0.988
HSPA9
Stress-70 protein, mitochondrial; Chaperone protein which plays an important role in mitochondrial iron-sulfur cluster (ISC) biogenesis. Interacts with and stabilizes ISC cluster assembly proteins FXN, NFU1, NFS1 and ISCU. Regulates erythropoiesis via stabilization of ISC assembly. May play a role in the control of cell proliferation and cellular aging (By similarity); Belongs to the heat shock protein 70 family (679 aa)
     
  0.987
FDX1L
Ferredoxin-2, mitochondrial; Essential for heme A and Fe/S protein biosynthesis; Belongs to the adrenodoxin/putidaredoxin family (183 aa)
     
 
  0.981
FDX1
Adrenodoxin, mitochondrial; Participates in the synthesis of thyroid hormones. Essential for the synthesis of various steroid hormones, participates in the reduction of mitochondrial cytochrome P450 for steroidogenesis. Transfers electrons from adrenodoxin reductase to CYP11A1, a cytochrome P450 that catalyzes cholesterol side-chain cleavage; Belongs to the adrenodoxin/putidaredoxin family (184 aa)
     
 
  0.978
Your Current Organism:
Homo sapiens
NCBI taxonomy Id: 9606
Other names: H. sapiens, Homo sapiens, human, man
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