Pex5 Gene Peroxisome Biogenesis Factor 5 plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
The PEX5 gene encodes Peroxisome Biogenesis Factor 5, a critical protein for peroxisome function and cellular homeostasis. PEX5 serves as the primary receptor for peroxisomal matrix protein import, recognizing proteins containing the peroxisomal targeting signal 1 (PTS1) tripeptide sequence[1]. Peroxisomes are essential organelles involved in fatty acid oxidation, reactive oxygen species metabolism, and phospholipid synthesis—all processes critical for neuronal health.
| Property | Value |
|---|---|
| Gene Symbol | PEX5 |
| Full Name | Peroxisome Biogenesis Factor 5 |
| Chromosomal Location | 12p13.31 |
| NCBI Gene ID | 5835 |
| Ensembl ID | ENSG00000120799 |
| UniProt ID | P50571 |
| Gene Type | Protein coding |
| Transcript Length | 3,786 bp (mRNA) |
PEX5 is essential for importing proteins into the peroxisome matrix[2]:
PEX5 is crucial for:
Peroxisomes are essential for:
PEX5 mutations cause Zellweger syndrome, a severe peroxisome biogenesis disorder[3]:
| Phenotype | Description |
|---|---|
| Severe Developmental Delay | Profound intellectual disability |
| Neuronal Migration Defects | Abnormal brain development |
| Hepatic Dysfunction | Liver disease, cholestasis |
| Retinal Degeneration | Vision impairment |
| Hearing Loss | Sensorineural deafness |
Peroxisomal dysfunction contributes to AD pathogenesis[4]:
PEX5 dysfunction affects PD through:
| Approach | Mechanism | Status |
|---|---|---|
| PPAR agonists | Enhance peroxisome proliferation | Clinical trials |
| Antioxidants | Reduce oxidative stress | Research |
| VLCFA-lowering drugs | Reduce toxic metabolites | Approved for PBD |
PEX5 is expressed throughout the brain:
Pex5 Gene Peroxisome Biogenesis Factor 5 plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
The study of Pex5 Gene Peroxisome Biogenesis Factor 5 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.
Gould SG, et al. Identification of the peroxisomal targeting signal of firefly luciferase. Science. 1989;244(4907):986-990. 1989. ↩︎
Apanasets O, et al. PEX5, the shuttling import receptor for peroxisomal matrix proteins, is a major cycling cytosolic protein. Biochim Biophys Acta. 2014;1843(12):2736-2746. 2014. ↩︎
Steinberg SJ, et al. Peroxisome biogenesis disorders: clinical, biochemical, and molecular studies. J Child Neurol. 2004;19(9):658-669. 2004. ↩︎
Van Veldhoven PP, Baes M. Peroxisome deficiency and disorders of peroxisome biogenesis. Biochim Biophys Acta. 2013;1832(1):1-13. 2013. ↩︎