| Gene Symbol | COX20 |
| Full Name | COX20 (Cytochrome C Oxidase Assembly Factor) |
| Aliases | Cytochrome c Oxidase Assembly Factor 20, Cytochrome C Oxidase Assembly Factor |
| Chromosome | 1p31.3 |
| Protein Type | Protein |
| Function | is a nuclear-encoded mitochondrial protein that plays an indispensable role in the biogenesis of cytochrome c oxidase (Complex IV), the terminal enzyme of the mitochondrial electron transport chain. |
| Primary Expression | High in cerebellum, inner ear, heart, skeletal muscle |
| Subcellular Localization | **Mitochondrial inner membrane**: Integral membrane protein |
| Molecular Weight | 22 kDa |
| Amino Acids | 198 aa |
| UniProt ID | Q9Y4Y6 |
| NCBI Gene ID | 91574 |
| Ensembl ID | ENSG00000173391 |
| GeneCards | COX20 |
| Human Protein Atlas | COX20 |
| Associated Diseases | neurodegeneration |
| Databases | GeneCardsHPASTRING |