
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Tie-2 CRISPR Activation Plasmid (h) | sc-400295-ACT | 20 µg | $397.00 | |||
Tie-2 CRISPR Activation Plasmid (h2) | sc-400295-ACT-2 | 20 µg | $397.00 |
TEK encodes the endothelial receptor tyrosine kinase Tie-2, a key regulator of vascular development and maintenance that integrates angiopoietin signaling to control endothelial cell survival, migration, and barrier integrity. Tie-2 activity coordinates downstream PI3K/AKT and MAPK pathways and cross-talks with VEGF-driven angiogenic programs to shape vessel remodeling and quiescence. Dysregulated TEK/Tie-2 signaling has been associated with pathological angiogenesis, vascular malformations, inflammation-linked endothelial dysfunction, and tumor microenvironment vascular remodeling. As a result, TEK is widely studied in endothelial biology, vascular permeability, and stromal signaling networks relevant to cardiovascular and cancer research.
Tie-2 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous TEK expression without altering the underlying DNA sequence.
Tie-2 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the TEK 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 TEK transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Tie-2 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native TEK locus and enabling the study of Tie-2-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Tie-2 pathway restoration in tumor cells with silenced or reduced TEK expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.