
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
FRP-3 CRISPR Activation Plasmid (h) | sc-402504-ACT | 20 µg | $397.00 | |||
FRP-3 CRISPR Activation Plasmid (h2) | sc-402504-ACT-2 | 20 µg | $397.00 |
Human FRZB encodes frizzled-related protein 3 (FRP-3), a secreted antagonist of Wnt ligands that modulates Frizzled receptor activation and downstream β-catenin–dependent transcription. By shaping Wnt gradients, FRP-3 influences cell fate decisions, proliferation, and extracellular matrix homeostasis in development and adult tissues, including cartilage and connective tissue. Altered FRZB expression or function has been linked to dysregulated Wnt signaling in musculoskeletal biology and tumor-associated pathways, making it relevant to studies of osteoarthritis, skeletal development, and cancer cell behavior. FRP-3 activity also intersects with BMP/TGF-β crosstalk and matrix remodeling programs that impact tissue organization and differentiation.
FRP-3 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous FRZB expression without altering the underlying DNA sequence.
FRP-3 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the FRZB 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 FRZB transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous FRP-3 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native FRZB locus and enabling the study of FRP-3-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of FRP-3 pathway restoration in tumor cells with silenced or reduced FRZB expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.