SP140 CRISPR Activation Plasmid (m): sc-436685-ACT
- Target species: mouse
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- SP140 CRISPR Activation Plasmid (m) is a synergistic activation mediator (SAM) transcription activation system designed to specifically upregulate gene expression
- SP140 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 SP140 CRISPR Activation Plasmid (m) and SP140 CRISPR Activation Plasmid (m2) target distinct regulatory regions upstream of the Sp140 transcriptional start site. One or both designs may be available
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
SP140 CRISPR Activation Plasmid (m) | sc-436685-ACT | 20 µg | $397.00 |
Mouse Sp140 encodes SP140, a nuclear chromatin reader enriched in immune lineages that helps shape transcriptional programs during innate and adaptive immune responses. SP140 contains epigenetic “reader” modules that interact with modified histones to influence chromatin accessibility, linking it to pathways controlling cytokine signaling, interferon-stimulated gene expression, and inflammatory gene repression/activation. By modulating transcription at immune-relevant loci, SP140 is used to study macrophage and B cell differentiation, antimicrobial responses, and epigenetic regulation of inflammatory networks. Altered SP140 activity has been associated with dysregulated immune homeostasis and inflammatory disease biology, making it a useful node for mechanistic studies of immunogenetics and chromatin-driven gene control.
SP140 CRISPR Activation Plasmid (m) provides a targeted, non-destructive approach to upregulating endogenous Sp140 expression without altering the underlying DNA sequence.
SP140 CRISPR Activation Plasmid (m) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the Sp140 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 Sp140 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous SP140 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native Sp140 locus and enabling the study of SP140-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of SP140 pathway restoration in tumor cells with silenced or reduced Sp140 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.