
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Nox3 CRISPR Activation Plasmid (h) | sc-402542-ACT | 20 µg | $397.00 |
NOX3 encodes Nox3, a catalytic subunit of the NADPH oxidase family that generates reactive oxygen species (ROS) by transferring electrons from NADPH to molecular oxygen. Nox3-derived ROS contribute to redox signaling that can modulate kinase cascades, transcriptional programs, and ion transport processes, linking oxidant production to cellular homeostasis. Although NOX3 is classically associated with inner ear biology in mammalian systems, aberrant NADPH oxidase activity more broadly is relevant to oxidative stress mechanisms implicated in inflammation, epithelial dysfunction, and tissue remodeling. In human research models, NOX3 expression and activity can be interrogated to understand compartmentalized ROS signaling and its downstream effects on redox-sensitive pathways.
Nox3 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous NOX3 expression without altering the underlying DNA sequence.
Nox3 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the NOX3 locus in human cell lines. The system is built around a catalytically inactive Cas9 (dCas9) carrying two inactivating mutations (D10A and N863A) that eliminate nuclease activity while preserving DNA binding. This dCas9 is fused to VP64, a potent transcriptional activator, and is co-expressed with a blasticidin resistance gene for selection. The second plasmid encodes the MS2-p65-HSF1 fusion protein, a secondary activator complex that works in concert with dCas9-VP64, alongside a hygromycin resistance gene. The third plasmid encodes a target-specific 20 nt sgRNA fused to two MS2 RNA aptamers that recruit the MS2-p65-HSF1 complex to the activation site, accompanied by a puromycin resistance gene. The three plasmids are delivered at a 1:1:1 mass ratio for balanced expression of all system components.
Once assembled at the target locus, the SAM complex binds within approximately 200 bp upstream of the NOX3 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Nox3 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native NOX3 locus and enabling the study of Nox3-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Nox3 pathway restoration in tumor cells with silenced or reduced NOX3 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.