KV4.3 Double Nickase Plasmid (h): sc-404247-NIC
- Target species: human
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- KV4.3 Double Nickase Plasmid (h) consists of a pair of plasmids each encoding a D10A mutated Cas9 nuclease and a target-specific 20 nt guide RNA (gRNA) designed to knockout gene expression with greater specificity than its CRISPR/Cas9 KO counterpart
- Paired gRNA sequences are offset by approximately 20 bp to allow for specific Cas9-mediated double nicking of the genomic DNA, which mimics a DSB
- One plasmid in the pair contains a puromycin-resistance gene for selection; the other plasmid in the pair contains a GFP marker to visually confirm transfection
- KV4.3 Double Nickase Plasmid (h) and KV4.3 Double Nickase Plasmid (h2) encode distinct paired gRNA designs targeting KCND3. One or both designs may be available
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
KV4.3 Double Nickase Plasmid (h) | sc-404247-NIC | 20 µg | $410.00 | |||
KV4.3 Double Nickase Plasmid (h2) | sc-404247-NIC-2 | 20 µg | $410.00 |
Human KCND3 encodes the voltage-gated potassium channel subunit KV4.3, a principal mediator of rapidly inactivating A-type K+ currents that shape action potential repolarization and regulate firing frequency in excitable cells. KV4.3 activity integrates with membrane excitability programs that couple ionic conductance to Ca2+ signaling, synaptic transmission, and activity-dependent gene expression. In the nervous system, KCND3 contributes to neuronal pacemaking and dendritic signal processing, and variants have been linked to disorders of excitability including spinocerebellar ataxia and cardiac arrhythmia phenotypes. These features make KCND3 a useful target for studying mechanisms of electrical signaling, channel biophysics, and genotype–phenotype relationships in disease-relevant cellular models.
KV4.3 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the KCND3 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within KCND3. 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 KCND3 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 KCND3-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.