
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
CX3CR1 CRISPR Activation Plasmid (h) | sc-401206-ACT | 20 µg | $397.00 | |||
CX3CR1 CRISPR Activation Plasmid (h2) | sc-401206-ACT-2 | 20 µg | $397.00 |
CX3CR1 encodes the CX3C chemokine receptor 1, a seven-transmembrane GPCR that binds fractalkine (CX3CL1) to regulate leukocyte chemotaxis, adhesion, and tissue surveillance. CX3CR1 signaling influences inflammatory trafficking and myeloid cell programs through GPCR-linked pathways that converge on Ca2+ mobilization, MAPK signaling, and cytoskeletal remodeling. In human biology, CX3CR1 is prominently studied in microglia and monocyte subsets where it shapes neuroimmune communication and vascular–immune interactions. Altered CX3CR1–CX3CL1 axis activity has been associated with chronic inflammation and neurodegeneration-relevant processes, making it a useful node for mechanistic studies of immune cell behavior in disease contexts.
CX3CR1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous CX3CR1 expression without altering the underlying DNA sequence.
CX3CR1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the CX3CR1 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 CX3CR1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous CX3CR1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native CX3CR1 locus and enabling the study of CX3CR1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of CX3CR1 pathway restoration in tumor cells with silenced or reduced CX3CR1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.