
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
MTAP CRISPR Activation Plasmid (m2) | sc-426257-ACT-2 | 20 µg | $397.00 |
Mouse Mtap encodes methylthioadenosine phosphorylase (MTAP), a key enzyme of the methionine salvage pathway that catalyzes phosphorolysis of 5′-methylthioadenosine to support adenine and methionine recycling and maintain cellular purine metabolism. MTAP activity links polyamine biosynthesis byproduct turnover to one-carbon metabolism and methylation capacity, influencing nucleotide pools, redox balance, and proliferative homeostasis. Loss or reduction of MTAP function is frequently associated with altered metabolic dependencies and genomic instability in cancer-relevant contexts, often in proximity to Cdkn2a locus perturbations. Mtap mouse gene editing tools enable mechanistic studies of metabolic rewiring, epigenetic regulation, and cell-state transitions, and support in vivo and in vitro models for dissecting pathway crosstalk in development and disease biology.
MTAP CRISPR Activation Plasmid (m2) provides a targeted, non-destructive approach to upregulating endogenous Mtap expression without altering the underlying DNA sequence.
MTAP CRISPR Activation Plasmid (m2) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the Mtap 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 Mtap transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous MTAP expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native Mtap locus and enabling the study of MTAP-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of MTAP pathway restoration in tumor cells with silenced or reduced Mtap expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.