Fxn Gene Summary [Mouse]
Predicted to enable several functions, including 2 iron, 2 sulfur cluster binding activity; ferroxidase activity; and iron ion binding activity. Involved in [4Fe-4S] cluster assembly. Acts upstream of or within several processes, including adult walking behavior; muscle cell cellular homeostasis; and negative regulation of organ growth. Located in mitochondrion. Part of mitochondrial [2Fe-2S] assembly complex. Is expressed in several structures, including brain; cartilage condensation; heart; hemolymphoid system; and lower jaw incisor. Used to study Friedreich ataxia. Human ortholog(s) of this gene implicated in Friedreich ataxia; Friedreich ataxia 1; glioblastoma; and type 2 diabetes mellitus. Orthologous to human FXN (frataxin). [provided by Alliance of Genome Resources, Jul 2025]
Details
| Type | Protein Coding |
| Official Symbol | Fxn |
| Official Name | frataxin [Source:MGI Symbol;Acc:MGI:1096879] |
| Ensembl ID | ENSMUSG00000059363 |
| Bio databases IDs | |
| Aliases | frataxin |
| Synonyms | CyaY, FA, FARR, FRATAXIN, FRDA, RGD1565754, X25 |
| Species | Mouse, Mus musculus |
| Orthologies |
Protein Domains
A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in mouse Fxn often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
- kinase
- ferrous iron binding
- ferric iron binding
- binding protein
- enzyme binding
- protein binding
- enzyme activator activity
- ferroxidase
- metallochaperone
- Frataxin-like domain
- Frataxin
Pathways
Biological processes and signaling networks where the Fxn gene in mouse plays a role, providing insight into its function and relevance in health or disease.
Top Findings
The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
- epithelial cancer
- liver cancer
- Friedreich ataxia
- diabetes mellitus
- hereditary disorder
- Friedreich ataxia with retained reflexes
- ataxia
- obesity
- major depression
- hepatocellular carcinoma
role in cell
- expression in
- proliferation
- growth
- apoptosis
- quantity
- activation in
- accumulation in
- synthesis in
- morphology
- organization
Subcellular Expression
Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
- Cytoplasm
- Nucleus
- Mitochondria
- cytosol
- mitochondrial matrix
- mitochondrial inner membrane
- cytosolic fraction
Gene Ontology Annotations
Describes the biological processes, cellular components, and molecular functions associated with the mouse Fxn gene, providing context for its role in the cell.
Biological Process
Functions and activities the gene product is involved in
- negative regulation of multicellular organism growth
- organ growth
- muscle cell homeostasis
- embryo development ending in birth or egg hatching
- positive regulation of cell proliferation
- heme biosynthetic process
- cellular iron ion homeostasis
- adult walking behavior
- positive regulation of cell growth
- oxidative phosphorylation
- response to iron ion
- cellular response to hydrogen peroxide
- positive regulation of lyase activity
- negative regulation of release of cytochrome c from mitochondria
- negative regulation of organ growth
- mitochondrion organization
- [2Fe-2S] cluster assembly
- proprioception
- iron incorporation into metallo-sulfur cluster
- positive regulation of catalytic activity
- iron ion transport
- negative regulation of apoptotic process
- [4Fe-4S] cluster assembly
- protein autoprocessing
- regulation of ferrochelatase activity
- iron-sulfur cluster assembly
Cellular Component
Where in the cell the gene product is active
- mitochondrial matrix
- mitochondrion
- cytosol
Molecular Function
What the gene product does at the molecular level
- protein binding
- ferric iron binding
- ferrous iron binding
- ferroxidase activity
- 2 iron, 2 sulfur cluster binding
- iron chaperone activity