
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
CYP21A2 CRISPR Activation Plasmid (h) | sc-402919-ACT | 20 µg | $397.00 | |||
CYP21A2 CRISPR Activation Plasmid (h2) | sc-402919-ACT-2 | 20 µg | $397.00 |
CYP21A2 encodes cytochrome P450 21-hydroxylase, an endoplasmic reticulum–associated monooxygenase required for adrenal steroidogenesis. By catalyzing 21-hydroxylation steps in the biosynthesis of cortisol and aldosterone precursors, CYP21A2 helps regulate glucocorticoid and mineralocorticoid pathways that shape electrolyte balance and stress-responsive endocrine signaling. Altered CYP21A2 expression or activity perturbs steroid hormone flux through the adrenal cortex, influencing downstream transcriptional programs controlled by nuclear hormone receptors. Dysregulation of this gene is strongly linked to congenital adrenal hyperplasia phenotypes and is frequently studied in endocrine genetics and steroid metabolism research.
CYP21A2 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous CYP21A2 expression without altering the underlying DNA sequence.
CYP21A2 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the CYP21A2 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 CYP21A2 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous CYP21A2 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native CYP21A2 locus and enabling the study of CYP21A2-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of CYP21A2 pathway restoration in tumor cells with silenced or reduced CYP21A2 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.