



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
KIR6.1 Double Nickase Plasmid (h) | sc-401477-NIC | 20 µg | $410.00 | |||
KIR6.1 Double Nickase Plasmid (h2) | sc-401477-NIC-2 | 20 µg | $410.00 |
KCNJ8 encodes the inwardly rectifying potassium channel subunit KIR6.1, a core component of ATP-sensitive potassium (KATP) channels that couple cellular metabolic state to membrane excitability. By partnering with sulfonylurea receptor subunits, KIR6.1 contributes to regulation of vascular smooth muscle tone and other excitable-cell processes through ATP/ADP-dependent gating and downstream control of calcium influx and contractility. This metabolic-sensing pathway influences responses to hypoxia, ischemic stress, and energy depletion by modulating membrane potential and excitability. Genetic variation or dysregulation of KCNJ8 has been associated with cardiovascular and excitability-related phenotypes, supporting its relevance for mechanistic studies of ion channel biology and bioenergetic signaling.
KIR6.1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the KCNJ8 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within KCNJ8. 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 KCNJ8 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 KCNJ8-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.