
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Olfr666 CRISPR Activation Plasmid (m) | sc-435166-ACT | 20 µg | $397.00 |
Olfr666 encodes a mouse olfactory receptor belonging to the rhodopsin-like class A GPCR superfamily, primarily linked to chemosensory detection and odorant-evoked signal transduction. Upon ligand engagement, olfactory receptors typically couple to G protein signaling cascades that elevate intracellular cAMP and modulate ion channel activity, shaping neuronal excitability and sensory coding. Although olfactory receptors are best characterized in the olfactory epithelium, members of this gene family are also reported in select non-olfactory tissues, supporting broader roles in GPCR-driven cellular communication. Altered olfactory receptor expression and GPCR signaling dynamics are frequently used as readouts in models of sensory dysfunction and as molecular markers in studies of neural development and tissue-specific transcriptional regulation.
Olfr666 CRISPR Activation Plasmid (m) provides a targeted, non-destructive approach to upregulating endogenous Olfr666 expression without altering the underlying DNA sequence.
Olfr666 CRISPR Activation Plasmid (m) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the Olfr666 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 Olfr666 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Olfr666 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native Olfr666 locus and enabling the study of Olfr666-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Olfr666 pathway restoration in tumor cells with silenced or reduced Olfr666 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.