ASM CRISPR Activation Plasmid (m): sc-423033-ACT
- Target species: mouse
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- ASM CRISPR Activation Plasmid (m) is a synergistic activation mediator (SAM) transcription activation system designed to specifically upregulate gene expression
- ASM CRISPR Activation Plasmid (m) consists of three plasmids at a 1:1:1 mass ratio: a plasmid encoding the deactivated Cas9 (dCas9) nuclease (D10A and N863A) fused to the transactivation domain VP64, and a blasticidin resistance gene; a plasmid encoding the MS2-p65-HSF1 fusion protein, and a hygromycin resistance gene; a plasmid encoding a target-specific 20 nt guide RNA fused to two MS2 RNA aptamers, and a puromycin resistance gene
- The resulting SAM complex binds to a site-specific region approximately 200-250 nt upstream of the transcriptional start site and provides robust recruitment of transcription factors for highly efficient gene activation
- gRNAs encoded by ASM CRISPR Activation Plasmid (m) and ASM CRISPR Activation Plasmid (m2) target distinct regulatory regions upstream of the Smpd1 transcriptional start site. One or both designs may be available
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
ASM CRISPR Activation Plasmid (m) | sc-423033-ACT | 20 µg | $397.00 |
Mouse Smpd1 encodes acid sphingomyelinase (ASM), a lysosomal hydrolase that converts sphingomyelin to ceramide and phosphorylcholine, thereby regulating sphingolipid turnover and membrane remodeling. ASM-dependent ceramide generation influences endolysosomal function, autophagy-lysosome crosstalk, and stress-responsive signaling pathways linked to inflammation and cell death. Perturbation of ASM activity disrupts lipid homeostasis and promotes sphingomyelin accumulation, a hallmark of lysosomal storage pathology and altered myelin and immune cell function. In biomedical research, Smpd1/ASM is used to investigate lysosomal biology, ceramide-mediated signaling, and mechanisms connecting lipid metabolism to neurodegeneration and metabolic stress.
ASM CRISPR Activation Plasmid (m) provides a targeted, non-destructive approach to upregulating endogenous Smpd1 expression without altering the underlying DNA sequence.
ASM CRISPR Activation Plasmid (m) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the Smpd1 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 Smpd1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous ASM expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native Smpd1 locus and enabling the study of ASM-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of ASM pathway restoration in tumor cells with silenced or reduced Smpd1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.