Snap25 Knockout N1E-115 Cell Line

The choice depends on whether you are studying SNAP-25's role in neuronal SNARE-mediated vesicle fusion or in non-neuronal exocytosis contexts. The Knockout line in N1E-115 is appropriate for asking whether SNAP-25 is required for regulated neurotransmitter release and synaptic vesicle exocytosis in a neuronal cell context. Overexpression is useful for testing isoform-specific functions (SNAP-25a vs SNAP-25b) or for studying SNAP-25 mutations in encephalopathy models. For neuronal SNARE biology research, the EDITGENE SNAP-25 Knockout in N1E-115 provides a neuronal-relevant background — N1E-115 is a murine neuroblastoma line that has long served as a neurosecretion model. Rescue with wild-type, BoNT/A/E-resistant (cleavage site mutant), or disease-associated mutant SNAP-25 enables mechanistic studies of SNARE function and botulinum toxin specificity.

Primary applications: • Neurotransmitter release assays: depolarization-induced exocytosis measurement using FM dye uptake/release or amperometric detection in the absence of SNAP-25. • SNARE complex formation: in vitro reconstitution and pull-down assays for SNAP-25 interactions with syntaxin-1 and synaptobrevin-2 (VAMP2). • Botulinum toxin sensitivity: rescue with BoNT/A or BoNT/E cleavage-resistant SNAP-25 variants enables botulinum neurotoxin specificity studies. • Disease mutation studies: rescue with developmental and epileptic encephalopathy-associated SNAP-25 variants for genotype-phenotype correlation. EDITGENE recommends this model for researchers investigating neuronal SNARE biology, synaptic vesicle fusion mechanisms, and SNAP-25-related encephalopathy modeling.

Yes. SNAP-25 rescue experiments require attention to SNARE motif function and isoform selection: • Construct design: use a codon-modified Snap25 sequence with a small internal or C-terminal tag (small FLAG/HA only; large tags disrupt SNARE assembly). SNAP-25 has two SNARE motifs and a central palmitoylated linker that anchors the protein to membranes. • Isoform-specific rescue: SNAP-25a versus SNAP-25b isoforms have different developmental expression patterns and exocytic properties. • Cleavage-resistant variants: BoNT/A cleaves SNAP-25 at Q197-R198, BoNT/E at R180-I181. Resistant point mutations enable specificity studies of botulinum neurotoxins. • Functional readout: rescue should restore depolarization-induced exocytosis and SNARE complex formation in N1E-115 neuronal context. N1E-115 is a mouse neuroblastoma cell line that transduces with lentivirus at moderate efficiency; differentiation conditions (serum reduction, DMSO) may be required for neurosecretion phenotyping.