Psma2 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| Gene Symbol | PSMA2 |
| Full Name | Proteasome Subunit Alpha 2 |
| Chromosomal Location | 7p14.3 |
| NCBI Gene ID | 5683 |
| OMIM | 176842 |
| Ensembl ID | ENSG00000146576 |
| UniProt | P25787 |
| Associated Diseases | Alzheimer's Disease, Parkinson's Disease, ALS, Huntington's Disease |
PSMA2 is a gene/protein encoding a key neuronal protein involved in synaptic function, signal transduction, and cellular homeostasis. Dysfunction of PSMA2 is associated with neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, and related disorders.
The PSMA2 gene encodes the alpha subunit type 2 of the 20S proteasome. PSMA2 is a structural component of the 20S proteasome core particle, forming part of the outer alpha ring that controls substrate entry into the proteolytic chamber. The proteasome degrades damaged, misfolded, and regulatory proteins tagged with ubiquitin.
PSMA2 contributes to maintaining cellular proteostasis by degrading polyglutamine-expanded proteins, oxidized proteins, and regulatory proteins. The proteasome plays a crucial role in degrading aggregation-prone proteins that accumulate in neurodegenerative diseases.
PSMA2/proteasome dysfunction in neurodegeneration:
PSMA2 is expressed in most tissues:
The study of Psma2 Gene 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.