HtrA CRISPR Activation Plasmid (h): sc-403306-ACT
- Target species: human
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- HtrA CRISPR Activation Plasmid (h) is a synergistic activation mediator (SAM) transcription activation system designed to specifically upregulate gene expression
- HtrA 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 HtrA CRISPR Activation Plasmid (h) and HtrA CRISPR Activation Plasmid (h2) target distinct regulatory regions upstream of the HTRA1 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: HtrA Antibody (B-8): sc-377050
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
HtrA CRISPR Activation Plasmid (h) | sc-403306-ACT | 20 µg | $397.00 |
Human HTRA1 encodes the secreted serine protease HtrA1, a regulator of extracellular matrix (ECM) proteostasis that cleaves multiple matrix and signaling-associated substrates. HtrA1 activity influences tissue remodeling and cell–matrix interactions, and it modulates growth factor signaling pathways including TGF-β by altering the availability and processing of pathway components in the pericellular environment. Dysregulated HTRA1 expression or function has been linked to vascular and connective tissue pathology, age-related macular degeneration, and tumor microenvironment remodeling, making it a useful node for studying ECM-driven signaling and stress responses.
HtrA CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous HTRA1 expression without altering the underlying DNA sequence.
HtrA CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the HTRA1 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 HTRA1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous HtrA expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native HTRA1 locus and enabling the study of HtrA-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of HtrA pathway restoration in tumor cells with silenced or reduced HTRA1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.