STX2 (Syntaxin 2) is a member of the syntaxin family of SNARE proteins involved in membrane fusion events. STX2 plays important roles in epithelial cell polarity, neutrophil degranulation, and neuronal synaptic transmission. Alterations in STX2 function may contribute to neurodegenerative processes through impaired vesicle fusion.
| Syntaxin 2 (Epimorphin) | |
|---|---|
| Gene Symbol | STX2 |
| Full Name | Syntaxin 2 |
| Chromosome | 12q24.31 |
| NCBI Gene ID | 2054 |
| OMIM | 132050 |
| Ensembl ID | ENSG00000120280 |
| UniProt ID | P32856 |
| Associated Diseases | Alzheimer's Disease, Parkinson's Disease, Synaptic Dysfunction |
STX2 encodes syntaxin 2, a member of the SNARE (Soluble NSF Attachment Protein Receptor) family of proteins that mediate membrane fusion events. Syntaxin 2 is a target-SNARE (t-SNARE) protein involved in various intracellular fusion events, including exocytosis, endocytosis, and plasma membrane repair. In neurons, syntaxin 2 participates in neurotransmitter release and synaptic vesicle recycling. Dysregulation of syntaxin 2 has been implicated in neurodegenerative diseases through impaired synaptic function and membrane trafficking.
Widely expressed in various tissues. In brain, expressed in neurons and glial cells. Particularly important in regulated secretion in neuroendocrine cells.
| Disease | Variants | Inheritance | Mechanism |
|---|---|---|---|
| Alzheimer's Disease | Various | Risk factor | Synaptic dysfunction |
| Parkinson's Disease | Various | Risk factor | Impaired exocytosis |
| Neurodegeneration | Various | Risk factor | General trafficking defects |