
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
CYP27B1 CRISPR Activation Plasmid (h) | sc-401155-ACT | 20 µg | $397.00 |
CYP27B1 encodes mitochondrial 25-hydroxyvitamin D 1α-hydroxylase, a cytochrome P450 enzyme that catalyzes conversion of 25-hydroxyvitamin D to the active hormone 1,25-dihydroxyvitamin D3. By controlling local and systemic calcitriol production, CYP27B1 regulates vitamin D receptor signaling programs linked to calcium and phosphate homeostasis, epithelial differentiation, and immune modulation. CYP27B1 activity integrates endocrine and paracrine metabolic pathways, including renal and extra-renal vitamin D activation, and is coupled to mitochondrial redox partners within steroid/vitamin D metabolism. Dysregulation or loss-of-function variants in CYP27B1 are associated with impaired vitamin D activation and heritable disorders of mineral metabolism, providing a mechanistic entry point for studying vitamin D–dependent transcriptional networks in human cell models.
CYP27B1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous CYP27B1 expression without altering the underlying DNA sequence.
CYP27B1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the CYP27B1 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 CYP27B1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous CYP27B1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native CYP27B1 locus and enabling the study of CYP27B1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of CYP27B1 pathway restoration in tumor cells with silenced or reduced CYP27B1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.