
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
UPIIIa CRISPR Activation Plasmid (h) | sc-401796-ACT | 20 µg | $397.00 |
UPK3A encodes uroplakin IIIa (UPIIIa), a tetraspanin-like membrane protein that assembles with other uroplakins to form crystalline plaques on the apical surface of urothelial umbrella cells. These plaques are integral to terminal urothelial differentiation and contribute to epithelial barrier integrity and mechanochemical stability during bladder filling and voiding. UPIIIa participates in urothelial membrane organization and vesicle trafficking associated with plaque delivery to the cell surface, linking differentiation programs to specialized apical membrane biogenesis. Altered uroplakin expression patterns are used to study urothelial remodeling and lineage state changes in contexts such as bladder epithelial injury responses and urothelial carcinoma biology.
UPIIIa CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous UPK3A expression without altering the underlying DNA sequence.
UPIIIa CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the UPK3A 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 UPK3A transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous UPIIIa expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native UPK3A locus and enabling the study of UPIIIa-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of UPIIIa pathway restoration in tumor cells with silenced or reduced UPK3A expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.