S-100 β chain CRISPR Activation Plasmid (h): sc-400707-ACT
- Target species: human
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- S-100 β chain CRISPR Activation Plasmid (h) is a synergistic activation mediator (SAM) transcription activation system designed to specifically upregulate gene expression
- S-100 β chain CRISPR Activation Plasmid (h) 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 S-100 β chain CRISPR Activation Plasmid (h) and S-100 β chain CRISPR Activation Plasmid (h2) target distinct regulatory regions upstream of the S100B transcriptional start site. One or both designs may be available
- Following transfection, gene knockout efficiency can be assayed by WB, IF or IHC using antibody: S-100 β chain Antibody (C-3): sc-393919
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
S-100 β chain CRISPR Activation Plasmid (h) | sc-400707-ACT | 20 µg | $397.00 |
S100B encodes the S-100β chain, a Ca2+-binding member of the S100 protein family that functions as a signaling hub by modulating protein phosphorylation, enzyme activity, and cytoskeletal dynamics. In the central nervous system it is enriched in astrocytes and can influence neuronal support programs, calcium homeostasis, and stress-responsive transcriptional states. S-100β interacts with key regulatory proteins to shape processes such as cell cycle progression, differentiation, migration, and inflammatory signaling. Dysregulated S100B expression is frequently used as a molecular correlate of neuroinflammation and gliosis and has been linked to altered signaling landscapes in neurological disorders and cancer-associated phenotypes.
S-100 β chain CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous S100B expression without altering the underlying DNA sequence.
S-100 β chain CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the S100B 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 S100B transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous S-100 β chain expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native S100B locus and enabling the study of S-100 β chain-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of S-100 β chain pathway restoration in tumor cells with silenced or reduced S100B expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.