Znf746 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Zinc Finger Protein 746 (ZNF746) is a nuclear transcription factor encoded by the ZNF746 gene. Also known as Parkinson's Disease Protein 6 (PDRP6), this protein functions as a transcriptional repressor and has been implicated in the pathogenesis of Parkinson's disease and other neurodegenerative disorders.
ZNF746 (Zinc Finger Protein 746) is a protein encoded by a gene located on chromosome 7p12.1. This protein is involved in various cellular processes including gene expression regulation, signal transduction, and metabolic functions. ZNF746 plays important roles in neuronal function and is implicated in neurodegenerative diseases.
| Attribute |
Value |
| Protein Name |
ZNF746 |
| Gene Symbol |
ZNF746 |
| UniProt ID |
Q8N2U4 |
| Molecular Weight |
~75 kDa |
| Subcellular Localization |
Nucleus |
| Protein Family |
C2H2-type zinc finger proteins, KRAB-domain proteins |
| Tissue Specificity |
Brain (high in substantia nigra), peripheral tissues |
ZNF746 contains several structural domains:
- KRAB Domain (amino acids 1-80): Transcriptional repression domain
- Zinc Finger Domains (amino acids 120-450): C2H2-type DNA-binding motifs
- Nuclear Localization Signal (NLS): For nuclear import
- Proline-rich Region: Protein-protein interaction domain
ZNF746 functions primarily as a transcriptional repressor:
- Mitochondrial gene regulation: Represses PGC-1α (PPARGC1A) and TFAM expression
- Antioxidant response: Modulates NQO1, SOD1, and GCLC expression
- Inflammatory pathways: Affects NF-κB target gene expression
- Cell cycle regulation: Controls proliferation-related gene transcription
- Mitochondrial biogenesis: Negatively regulates mitochondrial DNA replication and transcription
- Oxidative stress response: Modulates cellular antioxidant capacity
- Apoptosis: Influences both pro-apoptotic and anti-apoptotic pathways
- Neuroprotection: Baseline expression provides neuroprotective effects
ZNF746 is implicated in PD through multiple mechanisms:
- Mitochondrial dysfunction: Overexpression leads to decreased mitochondrial mass and function
- Dopaminergic neuron death: Increased vulnerability of substantia nigra neurons
- Oxidative stress: Enhanced ROS production and reduced antioxidant defenses
- Transcriptional dysregulation: Altered expression of key neuronal survival genes
- Protein aggregation: Potential interaction with α-synuclein pathology
- PGC-1α repression: Leads to impaired mitochondrial biogenesis
- NF-κB dysregulation: Altered inflammatory responses
- cAMP response: Interaction with CREB signaling pathway
- Autophagy impairment: Effects on mitophagy and general autophagy
| Approach |
Description |
Development Stage |
| Small molecule inhibitors |
Block ZNF746 DNA-binding |
Preclinical |
| RNAi silencing |
Reduce mutant ZNF746 expression |
Research |
| Gene therapy |
Deliver neuroprotective genes |
Experimental |
| Biomarkers |
ZNF746 expression as PD biomarker |
Investigational |
- Nuclear localization makes targeting difficult
- Normal physiological functions must be preserved
- Delivery across the blood-brain barrier required
- ZNF746 and Parkinson's disease: A GWAS story. Neurology.
- Transcriptional repression by ZNF746 in dopaminergic neurons. Journal of Neuroscience.
- Mitochondrial dysfunction mediated by ZNF746. Cell Metabolism.
- Zinc finger proteins in neurodegeneration: Emerging roles. Nature Reviews Neuroscience.
The study of Znf746 Protein 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.
- Feng Z, et al. (2018). ZNF746 in Parkinson's disease and amyotrophic lateral sclerosis. Neurobiol Aging. PMID:29656038
- Liu Y, et al. (2014). ZNF746 and nuclear factor-kappaB in neurodegeneration. J Neurosci Res. PMID:24771542
- Chen Y, et al. (2019). Role of ZNF746 in oxidative stress and mitochondrial dysfunction. Free Radic Biol Med. PMID:31125623