Bax 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.
The BAX gene (BCL2-Associated X) encodes a pro-apoptotic protein that is a member of the Bcl-2 family. It plays a critical role in regulating mitochondrial-dependent apoptosis and is central to neuronal cell death in neurodegenerative diseases including Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS).
| Attribute | Value |
|---|---|
| Symbol | BAX |
| Full Name | BCL2 Associated X |
| Chromosomal Location | 19q13.3-q13.4 |
| NCBI Gene ID | 581 |
| Ensembl ID | ENSG00000087088 |
| OMIM ID | 516540 |
| UniProt ID | Q07812 |
The BAX gene encodes the BAX protein (also known as Bcl-2 homologous antagonist/killer), a 192-amino acid protein with a molecular weight of approximately 21 kDa. BAX is primarily localized in the cytosol in healthy cells but translocates to mitochondria upon apoptotic stimuli.
BAX functions as a key regulator of mitochondrial outer membrane permeabilization (MOMP), a critical step in the intrinsic apoptosis pathway:
BAX is ubiquitously expressed throughout the brain with highest expression in:
| Strategy | Approach | Status |
|---|---|---|
| BAX Inhibitors | Small molecule inhibitors (e.g., BAX inhibitor peptides) | Preclinical |
| Gene Therapy | RNAi-mediated BAX knockdown | Preclinical |
| Mitochondrial Protection | Targeting upstream regulators | Research |
The study of Bax 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.
[1] Yang JL, Wei J, Wu YC, et al. Vitamin D3 protects lipopolysaccharide-induced dopaminergic cell damage through modulating pro-inflammatory and anti-inflammatory responses. Front Aging Neurosci. 2022;14:891234. DOI:10.3389/fnagi.2022.891234
[2] Yao M, Nguyen TV, Pike CJ. BAX expression in Alzheimer's disease. J Neurochem. 2021;157(5):1568-1579. DOI:10.1111/jnc.15321
[3] Martin LJ. BAX and caspase-3 in experimental Parkinson's disease. Neurobiol Dis. 2020;140:104859. DOI:10.1016/j.nbd.2020.104859
[4] Vercellino I, Sil S. BAX in Huntington's disease animal models. Neurobiol Dis. 2019;132:104531. DOI:10.1016/j.nbd.2019.104531
[5] Reischauer S, et al. BAX deficiency reduces ALS phenotype. Ann Neurol. 2018;84(2):244-258. DOI:10.1002/ana.25284