
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Fnk CRISPR Activation Plasmid (h) | sc-404710-ACT | 20 µg | $397.00 | |||
Fnk CRISPR Activation Plasmid (h2) | sc-404710-ACT-2 | 20 µg | $397.00 |
Human PLK3 encodes the serine/threonine kinase Fnk, a polo-like kinase family member that participates in stress-responsive signaling and cell-cycle control. PLK3/Fnk activity has been linked to regulation of checkpoint signaling, DNA damage responses, and apoptosis-related pathways, integrating cues from oxidative stress and genotoxic insults. Through phosphorylation of downstream substrates, PLK3 influences mitotic progression and cellular homeostasis, making it relevant to studies of proliferation, genome stability, and stress adaptation. Altered PLK3 expression or signaling has been reported across multiple disease contexts, including cancer-associated deregulation of cell-cycle and damage-response networks.
Fnk CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous PLK3 expression without altering the underlying DNA sequence.
Fnk CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the PLK3 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 PLK3 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Fnk expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native PLK3 locus and enabling the study of Fnk-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Fnk pathway restoration in tumor cells with silenced or reduced PLK3 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.