



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
neurexin I Double Nickase Plasmid (r) | sc-437279-NIC | 20 µg | $410.00 | |||
neurexin I Double Nickase Plasmid (r2) | sc-437279-NIC-2 | 20 µg | $410.00 |
Neurexin I (NRXN1) is a presynaptic cell-adhesion molecule that organizes synapse formation and maturation by binding postsynaptic partners such as neuroligins and LRRTMs. Through alternative splicing, neurexin I diversifies synaptic recognition programs and influences neurotransmitter release probability, vesicle docking, and calcium-dependent exocytosis, integrating into pathways controlling synaptic assembly and plasticity. In rat nervous system models, NRXN1 function is commonly studied in the context of excitatory/inhibitory balance, circuit connectivity, and activity-dependent remodeling. Altered neurexin signaling has been linked in the literature to neurodevelopmental and neuropsychiatric disease mechanisms, supporting its use in dissecting synaptic vulnerability and network phenotypes in vivo and in vitro.
neurexin I Double Nickase Plasmid (r) consists of a matched pair of plasmids engineered for high-specificity editing of the locus in rat cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within . When directed to adjacent sites on opposite DNA strands, the two nickases generate offset single-strand nicks that together produce a staggered double-strand break, requiring coordinated on-target activity from both guides. The resulting DNA break is resolved by endogenous cellular repair pathways, most commonly through non-homologous end joining (NHEJ), leading to insertions or deletions that disrupt function. By requiring dual sgRNA engagement at the target locus, the double nicking approach enhances editing specificity and provides a complementary CRISPR strategy for applications where additional control over targeting precision is desired.
To support efficient identification of edited cells, one plasmid encodes GFP for fluorescent visualization of transfected populations, while the companion plasmid carries a puromycin resistance gene for antibiotic selection. Together, these features support efficient enrichment of co-transfected populations and simplify the validation of -disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.