
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
NOS2/iNOS CRISPR Activation Plasmid (m) | sc-421928-ACT | 20 µg | $397.00 | |||
NOS2/iNOS CRISPR Activation Plasmid (m2) | sc-421928-ACT-2 | 20 µg | $397.00 |
Mouse Nos2 encodes inducible nitric oxide synthase (NOS2/iNOS), an inflammation-responsive enzyme that catalyzes nitric oxide production from L-arginine, shaping redox balance and antimicrobial defense. iNOS is transcriptionally regulated downstream of innate immune signaling, including NF-κB and interferon-driven pathways, and contributes to macrophage polarization and cytokine networks. Sustained NOS2 activity can promote nitrosative stress, protein S-nitrosylation, and DNA damage, linking dysregulated nitric oxide signaling to inflammatory tissue injury and altered tumor microenvironment biology. Nos2 is widely used as a functional readout of activated myeloid cells and as a mechanistic node connecting immune stimulation to metabolic and oxidative stress responses.
NOS2/iNOS CRISPR Activation Plasmid (m) provides a targeted, non-destructive approach to upregulating endogenous Nos2 expression without altering the underlying DNA sequence.
NOS2/iNOS CRISPR Activation Plasmid (m) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the Nos2 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 Nos2 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous NOS2/iNOS expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native Nos2 locus and enabling the study of NOS2/iNOS-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of NOS2/iNOS pathway restoration in tumor cells with silenced or reduced Nos2 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.