
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
O-GlcNAc transferase CRISPR Activation Plasmid (m) | sc-430829-ACT | 20 µg | $397.00 |
Ogt encodes O-GlcNAc transferase (OGT), the essential nucleocytoplasmic enzyme that catalyzes O-linked β-N-acetylglucosamine (O-GlcNAc) addition to serine/threonine residues on diverse protein substrates. This dynamic post-translational modification integrates cellular nutrient status through the hexosamine biosynthetic pathway and shapes signaling, transcription, chromatin regulation, proteostasis, and cell-cycle control. OGT-mediated O-GlcNAcylation interfaces with phosphorylation to fine-tune kinase cascades and stress-responsive programs, influencing differentiation and neuronal function. Dysregulated O-GlcNAc cycling has been associated with metabolic and neurodegenerative disease mechanisms as well as oncogenic signaling networks, making Ogt a central node for pathway-focused studies in mouse systems.
O-GlcNAc transferase CRISPR Activation Plasmid (m) provides a targeted, non-destructive approach to upregulating endogenous Ogt expression without altering the underlying DNA sequence.
O-GlcNAc transferase CRISPR Activation Plasmid (m) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the Ogt 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 Ogt transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous O-GlcNAc transferase expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native Ogt locus and enabling the study of O-GlcNAc transferase-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of O-GlcNAc transferase pathway restoration in tumor cells with silenced or reduced Ogt expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.