
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
PRX III CRISPR Activation Plasmid (h) | sc-401730-ACT | 20 µg | $397.00 |
PRDX3 encodes human peroxiredoxin III (PRX III), a mitochondria-localized thioredoxin-dependent peroxidase that detoxifies hydrogen peroxide and lipid hydroperoxides to maintain redox homeostasis. By limiting mitochondrial reactive oxygen species, PRX III supports oxidative phosphorylation, preserves mitochondrial membrane integrity, and influences redox-sensitive signaling pathways that modulate metabolism, apoptosis, and inflammatory responses. Altered PRDX3 expression or activity is frequently studied in the context of oxidative stress biology, mitochondrial dysfunction, and redox adaptation associated with cancer, neurodegeneration, and cardiometabolic disease mechanisms. As a key component of the mitochondrial antioxidant network, PRX III is commonly used to interrogate ROS-driven changes in gene expression, bioenergetics, and stress-response pathways.
PRX III CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous PRDX3 expression without altering the underlying DNA sequence.
PRX III CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the PRDX3 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 PRDX3 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous PRX III expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native PRDX3 locus and enabling the study of PRX III-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of PRX III pathway restoration in tumor cells with silenced or reduced PRDX3 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.