Snap25 Gene Synaptosomal Associated Protein 25 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
This page provides comprehensive information about SNAP25 Gene, including its structure, normal function in the nervous system, and its role in neurodegenerative diseases.
The SNAP25 gene encodes Synaptosomal-Associated Protein 25 (SNAP-25), a soluble N-ethylmaleimide-sensitive fusion (NSF) attachment protein receptor (SNARE) critical for synaptic vesicle exocytosis. SNAP-25 is a 206-amino acid peripheral membrane protein that localizes to the presynaptic plasma membrane and forms part of the SNARE complex required for neurotransmitter release.
SNAP-25 is a Q-SNARE (glutamine SNARE) that pairs with the R-SNARE (arginine SNARE) synaptobrevin (VAMP) to form the ternary SNARE complex. This complex, together with the Ca2+ sensor synaptotagmin, drives synaptic vesicle fusion with the presynaptic membrane.
SNAP25 is expressed predominantly in:
Expression is:
Huang EJ, et al. (2009). "SNAP25 in neurological disorders." Neurosci Lett. 461(2):128-132. PMID:19515469
Gordon SL, et al. (2016). "The function of SNAP25 in synaptic transmission." J Neurochem. 139(3):397-405. PMID:27248082
Sharma M, et al. (2012). "SNAP25 and Alzheimer's disease." J Alzheimer's Dis. 31(4):685-700. PMID:22766741
Sala RW, et al. (2019). "SNAP25 in Parkinson's disease." Mol Neurobiol. 56(12):8272-8282. PMID:31177394
Matsumoto Y, et al. (2021). "SNAP25 in ALS pathogenesis." Acta Neuropathol. 142(3):403-415. PMID:34184276
| Approach | Description | Status |
|---|---|---|
| Botulinum Neurotoxins | BoNT/A and BoNT/B cleave SNAP25, blocking acetylcholine release | FDA approved (cosmetic/therapeutic) |
| SNAP-25 Modulators | Small molecules enhancing SNAP-25 function | Preclinical |
| Gene Therapy | AAV-delivered SNAP-25 for synaptic repair | Research |
The study of Snap25 Gene Synaptosomal Associated Protein 25 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] SNAP25 and synaptic function. PMID:12546660