| Gene Symbol | UBE3A |
| Full Name | Ubiquitin Protein Ligase E3A |
| Chromosome | 15q11.2 |
| Primary Expression | Brain (neurons), widespread peripheral tissue |
| Subcellular Localization | **HECT domain** — the catalytic domain (~350 aa) that transfers ubiquitin to substrates |
| Molecular Weight | 100 kDa |
| Amino Acids | 865 aa |
| Pathways | Er Stress, Innate Immunity, Mitophagy |
| UniProt ID | Q05086 |
| NCBI Gene ID | 7332 |
| Ensembl ID | ENSG00000114062 |
| OMIM | 601623 |
| GeneCards | UBE3A |
| Human Protein Atlas | UBE3A |
| Genomic Coordinates | chr15:25,310,000-25,420,000 (GRCh38) |
| Associated Diseases | neurodegeneration |
| KG Connections | 29 knowledge graph edges |
| Databases | GeneCardsHPASTRING |