
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
TROP-2 CRISPR Activation Plasmid (h) | sc-402046-ACT | 20 µg | $397.00 |
TACSTD2 encodes the human trophoblast cell surface antigen TROP-2, a type I transmembrane glycoprotein that functions in cell–cell interactions and epithelial signaling. TROP-2 modulates intracellular Ca²⁺ signaling and couples to proliferative and survival pathways, including MAPK/ERK and PI3K/AKT, influencing adhesion, migration, and differentiation programs. Dysregulated TACSTD2 expression is frequently observed in epithelial malignancies and is associated with altered invasive behavior and tumor heterogeneity, making it a useful marker in studies of epithelial biology. In addition, TACSTD2 loss-of-function variants are linked to corneal epithelial defects, supporting roles in tissue integrity and barrier maintenance.
TROP-2 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous TACSTD2 expression without altering the underlying DNA sequence.
TROP-2 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the TACSTD2 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 TACSTD2 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous TROP-2 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native TACSTD2 locus and enabling the study of TROP-2-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of TROP-2 pathway restoration in tumor cells with silenced or reduced TACSTD2 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.