
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
VDUP1 Double Nickase Plasmid (h) | sc-400664-NIC | 20 µg | $410.00 | |||
VDUP1 Double Nickase Plasmid (h2) | sc-400664-NIC-2 | 20 µg | $410.00 |
TXNIP, also known as VDUP1, encodes a thioredoxin-interacting protein that constrains cellular redox buffering by inhibiting thioredoxin activity, thereby linking oxidative stress to downstream signaling outcomes. It is induced by metabolic and endoplasmic reticulum stress and integrates inputs from glucose sensing, inflammatory cues, and transcriptional regulators to modulate apoptosis, proliferation, and cellular metabolism. TXNIP participates in pathways governing reactive oxygen species homeostasis and can promote NLRP3 inflammasome activation in contexts where oxidative and metabolic stress converge. Dysregulated TXNIP expression has been associated with cardiometabolic disorders, neuroinflammation, and tumor biology, making it a useful node for mechanistic studies of stress adaptation and immunometabolic signaling.
VDUP1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the TXNIP locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within TXNIP. 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 TXNIP 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 TXNIP-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.