
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
DEP-1 CRISPR Activation Plasmid (h) | sc-402501-ACT | 20 µg | $397.00 | |||
DEP-1 CRISPR Activation Plasmid (h2) | sc-402501-ACT-2 | 20 µg | $397.00 |
PTPRJ encodes DEP-1, a receptor-type protein tyrosine phosphatase enriched at the plasma membrane where it counterbalances receptor tyrosine kinase signaling. By dephosphorylating substrates involved in pathways such as EGFR/ERK and PI3K/AKT, DEP-1 modulates cell proliferation, adhesion, migration, and contact-dependent growth control. DEP-1 activity intersects with cytoskeletal and junctional programs, influencing endothelial and epithelial barrier biology as well as immune cell signaling thresholds. Altered PTPRJ expression or function has been associated with dysregulated signaling networks observed across multiple cancer contexts and inflammatory phenotypes, making it a useful node for mechanistic studies of phosphotyrosine homeostasis.
DEP-1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous PTPRJ expression without altering the underlying DNA sequence.
DEP-1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the PTPRJ 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 PTPRJ transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous DEP-1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native PTPRJ locus and enabling the study of DEP-1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of DEP-1 pathway restoration in tumor cells with silenced or reduced PTPRJ expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.