Sod3 — Superoxide Dismutase 3 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| SOD3 — Superoxide Dismutase 3 | |
|---|---|
| Symbol | SOD3 |
| Full Name | Superoxide Dismutase 3 |
| Chromosome | 4p15.2 |
| NCBI Gene | 6648 |
| Ensembl | ENSG00000109610 |
| OMIM | 185490 |
| UniProt | P08294 |
| Diseases | Parkinson's Disease, Alzheimer's Disease, ALS, Cardiovascular Disease |
| Expression | Extracellular fluids, Lung, Heart, Brain, Blood vessels |
SOD3 (Superoxide Dismutase 3) is a gene located on chromosome 4p15.2 that encodes extracellular superoxide dismutase [Cu-Zn], a secretory enzyme that catalyzes the dismutation of superoxide anion (O₂⁻) to hydrogen peroxide (H₂O₂). Unlike SOD1 (cytosolic) and SOD2 (mitochondrial), SOD3 is extracellular and plays unique roles in tissue protection.
SOD3 is a tetrameric glycoprotein secreted into extracellular spaces:
The enzyme provides protection against:
Alzheimer's Disease: SOD3 may protect against extracellular oxidative stress and vascular contributions to AD. Reduced SOD3 has been reported in AD brain.
Parkinson's Disease: Extracellular superoxide may contribute to dopaminergic neuron vulnerability. SOD3 offers neuroprotection in PD models.
ALS: While most ALS research focuses on SOD1 mutations, SOD3 variants may influence disease progression.
Stroke: SOD3 protects against ischemic brain injury via vascular protection.
The study of Sod3 — Superoxide Dismutase 3 has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.