
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
NQO1 Double Nickase Plasmid (h) | sc-400326-NIC | 20 µg | $410.00 | |||
NQO1 Double Nickase Plasmid (h2) | sc-400326-NIC-2 | 20 µg | $410.00 |
NQO1 (NAD(P)H quinone dehydrogenase 1) is a cytosolic flavoprotein that catalyzes two-electron reduction of quinones to hydroquinones, limiting redox cycling and reactive oxygen species generation. It functions as a key effector of the NRF2/KEAP1 oxidative stress response and contributes to cellular detoxification, maintenance of redox homeostasis, and protection of macromolecules from electrophilic damage. Through its role in xenobiotic metabolism and antioxidant defenses, NQO1 influences cellular susceptibility to oxidative injury and inflammatory stress. Altered NQO1 activity or expression has been associated with variation in stress tolerance and disease-relevant phenotypes in cancer biology, neurodegeneration, and cardiometabolic dysfunction research.
NQO1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the NQO1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within NQO1. 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 NQO1 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 NQO1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.