
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
PP2B-Aα CRISPR Activation Plasmid (h) | sc-401810-ACT | 20 µg | $397.00 |
PPP3CA encodes the catalytic Aα subunit of calcineurin (PP2B-Aα), a Ca2+/calmodulin-dependent serine/threonine phosphatase that couples intracellular calcium signals to phosphorylation-dependent transcriptional and synaptic programs. Calcineurin dephosphorylates key substrates including NFAT transcription factors, thereby regulating calcium-dependent gene expression, immune signaling, and neuronal activity-dependent remodeling. In excitable tissues, PPP3CA contributes to synaptic plasticity and ion channel regulation, while in broader contexts it integrates Ca2+ flux with MAPK- and phosphatase-controlled signaling nodes. Altered calcineurin activity and PPP3CA dysregulation have been associated with neurodevelopmental and neurodegenerative phenotypes as well as dysregulated inflammatory signaling, making it a useful target for pathway-focused mechanistic studies.
PP2B-Aα CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous PPP3CA expression without altering the underlying DNA sequence.
PP2B-Aα CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the PPP3CA 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 PPP3CA transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous PP2B-Aα expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native PPP3CA locus and enabling the study of PP2B-Aα-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of PP2B-Aα pathway restoration in tumor cells with silenced or reduced PPP3CA expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.