Syntaphilin (SNPH)

Syntaphilin (SNPH) is a neuron-specific, membrane-associated protein encoded by the SNPH gene[2][4]. It inhibits formation of the SNARE complex—essential for synaptic vesicle docking and fusion—by binding free syntaxin-1, and is enriched in axonal mitochondria where it functions as a docking receptor, immobilizing mitochondria through interaction with the microtubule cytoskeleton[1][2][3][4]. SNPH-mediated regulation of mitochondrial dynamics is critical for neuronal activity and presynaptic function. Defects in syntaphilin or its pathway have been implicated in neurodegenerative diseases and certain hereditary neuropathies[3][4]. Alternative splicing gives rise to multiple isoforms. Although it plays key roles in neuronal physiology, syntaphilin is not considered a classic pharmaceutical target and has no known direct drug interactions or utility as a clinical biomarker[4].

Other names

SyntaphilinSNPHKIAA0374bA314N13.5

None reported. No specific mechanisms of action for drugs exist since syntaphilin is not a drug target.