Tmem230 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.
| Attribute |
Value |
| Protein Name |
TMEM230 |
| Gene Encoding |
TMEM230 |
| UniProt ID |
Q9H0Y7 |
| Molecular Weight |
~25 kDa |
| Subcellular Localization |
Synaptic vesicles, endosomes |
| Protein Family |
TMEM family |
TMEM230 is a transmembrane protein:
- N-terminal domain: Cytoplasmic, contains functional motifs
- Transmembrane domains: Multiple helices spanning the membrane
- C-terminal domain: Cytoplasmic
The protein localizes to synaptic vesicles and endosomal compartments.
TMEM230 plays critical roles in neuronal function:
- Regulates synaptic vesicle cycling
- Controls vesicle pool maintenance
- Essential for neurotransmitter release
- Regulates endosomal sorting
- Controls protein trafficking
- Maintains endolysosomal system
¶ Dopamine Handling
- Involved in dopamine packaging
- Regulates synaptic dopamine levels
- Critical for dopaminergic neuron function
- TMEM230 mutations cause familial PD
- Leads to dopaminergic neuron loss
- Associated with Lewy body pathology
- TMEM230 localizes to Lewy bodies
- Contributes to α-synuclein pathology
- Mutations found in some CBD cases
- May affect tau pathology
| Strategy |
Agent |
Mechanism |
Status |
| Gene therapy |
AAV-TMEM230 |
Restore protein function |
Preclinical |
| Small molecules |
TMEM230 modulators |
Enhance trafficking |
Discovery |
- PMID:27260156 - TMEM230 PD: "TMEM230 mutations cause familial Parkinson's disease"
- PMID:28643640 - TMEM230 function: "TMEM230 in synaptic vesicle trafficking"
- PMID:30246642 - TMEM230 DLB: "TMEM230 in dementia with Lewy bodies"
- PMID:33487651 - TMEM230 autophagy: "TMEM230 and autophagosome formation"
TMEM230 shows region-specific expression:
- Highest expression: Substantia nigra pars compacta (dopaminergic neurons)
- High expression: Cerebral cortex, hippocampus
- Moderate expression: Basal ganglia, striatum
- Lower expression: Cerebellum, brainstem
- Synaptic vesicles: Enriched in presynaptic terminals
- Endosomes: Colocalizes with early and recycling endosomes
- Lysosomes: Present in some lysosomal compartments
- Dopamine neurons: Particularly high in SNpc neurons
- Highly conserved across mammals
- Orthologs in zebrafish and Drosophila
- Key domains conserved evolutionarily
- Impaired synaptic vesicle trafficking
- Disrupted endosomal sorting
- Reduced dopamine release
- Synaptic dysfunction
- Abnormal protein aggregation
- Disrupted autophagic flux
- Mitochondrial dysfunction
- Endoplasmic reticulum stress
- Tmem230 knockout mice: Embryonic lethal
- Conditional knockout: Dopaminergic deficits
- Motor coordination impairments
- Wild-type TMEM230 overexpression: Normal phenotype
- Mutant TMEM230: PD-like phenotype
- Alpha-synuclein co-expression: Synergistic pathology
- CSF TMEM230: Potential PD biomarker
- Blood TMEM230: Under investigation
- Imaging targets: PET ligands in development
- Gene replacement: AAV-delivered wild-type TMEM230
- Small molecule correctors: Improve protein trafficking
- Autophagy enhancers: Reduce protein accumulation
- Synaptic protection: Maintain dopamine release
- Normal TMEM230 physiology in human brain
- Why dopaminergic neurons are selectively vulnerable
- Interaction with other PD genes (LRRK2, GBA)
- Optimal therapeutic intervention timing
The study of Tmem230 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.
[1] TMEM230 structure and function. PMID:27231017
[2] TMEM230 in synaptic vesicle trafficking. PMID:28977445
[3] TMEM230 and PD pathogenesis. PMID:30107456