
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Tenascin-R CRISPR Activation Plasmid (h) | sc-402968-ACT | 20 µg | $397.00 | |||
Tenascin-R CRISPR Activation Plasmid (h2) | sc-402968-ACT-2 | 20 µg | $397.00 |
TNR encodes Tenascin-R, an extracellular matrix glycoprotein enriched in the central nervous system that modulates cell–cell and cell–matrix interactions during neural development and adult synaptic organization. Tenascin-R contributes to axon guidance, neurite outgrowth, myelination, and perineuronal net architecture by coordinating adhesion and signaling with proteoglycans and other matrix components. Through these functions it influences neuronal plasticity, inhibitory circuit maturation, and glial–neuronal communication, processes frequently studied in neurodevelopmental and neurodegenerative disease biology. Altered extracellular matrix remodeling and perineuronal net dynamics linked to TNR dysregulation are relevant to research on epilepsy, psychiatric disorders, and injury-associated plasticity without implying clinical outcomes.
Tenascin-R CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous TNR expression without altering the underlying DNA sequence.
Tenascin-R CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the TNR 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 TNR transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Tenascin-R expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native TNR locus and enabling the study of Tenascin-R-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Tenascin-R pathway restoration in tumor cells with silenced or reduced TNR expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.