
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
GFAT1 CRISPR Activation Plasmid (h) | sc-403022-ACT | 20 µg | $397.00 |
Human GFPT1 encodes glutamine—fructose-6-phosphate amidotransferase 1 (GFAT1), the rate-limiting enzyme of the hexosamine biosynthetic pathway that converts fructose-6-phosphate and glutamine to glucosamine-6-phosphate, thereby controlling cellular UDP-GlcNAc pools. By regulating substrate availability for N- and O-linked glycosylation, GFAT1 influences proteostasis, membrane trafficking, and signaling programs responsive to nutrient status. GFPT1 activity links glucose and amino acid metabolism to stress-adaptive pathways, including ER homeostasis and redox balance, and modulates O-GlcNAcylation-dependent transcriptional and cytoskeletal dynamics. Altered GFPT1 function has been associated with congenital myasthenic syndromes and has been studied in the context of metabolic remodeling and glycosylation changes observed across diverse disease-relevant cellular states.
GFAT1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous GFPT1 expression without altering the underlying DNA sequence.
GFAT1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the GFPT1 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 GFPT1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous GFAT1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native GFPT1 locus and enabling the study of GFAT1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of GFAT1 pathway restoration in tumor cells with silenced or reduced GFPT1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.