
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
cyclin F CRISPR Activation Plasmid (h) | sc-401505-ACT | 20 µg | $397.00 |
Human CCNF encodes cyclin F, an F-box protein that serves as the substrate-recognition component of the SCF(Cyclin F) E3 ubiquitin ligase complex and links cell-cycle progression to proteostasis. Cyclin F regulates ubiquitin-dependent turnover of key factors controlling DNA replication licensing, centrosome biology, and genome integrity, thereby coordinating S/G2 transition events and suppressing replication stress. Through these functions, CCNF interfaces with pathways governing DNA damage responses, ubiquitin signaling, and cell-cycle checkpoint control. Dysregulation of cyclin F–mediated substrate ubiquitination has been associated with altered genome maintenance and has been studied in the context of proliferative disorders and neurodegeneration.
cyclin F CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous CCNF expression without altering the underlying DNA sequence.
cyclin F CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the CCNF 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 CCNF transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous cyclin F expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native CCNF locus and enabling the study of cyclin F-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of cyclin F pathway restoration in tumor cells with silenced or reduced CCNF expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.