
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
LRIG1 CRISPR Activation Plasmid (h) | sc-403210-ACT | 20 µg | $397.00 |
LRIG1 (leucine-rich repeats and immunoglobulin-like domains 1) encodes a transmembrane regulator of receptor tyrosine kinase signaling that modulates the abundance and activity of receptors such as EGFR/ERBB family members and MET. Through effects on receptor turnover and downstream MAPK/ERK and PI3K/AKT signaling, LRIG1 contributes to control of proliferation, differentiation, and tissue homeostasis. In many experimental contexts LRIG1 is linked to epithelial and neural stem/progenitor biology, where it can influence niche signaling and cell-cycle restraint. Altered LRIG1 expression has been associated with dysregulated growth factor signaling observed in multiple disease-relevant models, supporting its use as a node for pathway interrogation.
LRIG1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous LRIG1 expression without altering the underlying DNA sequence.
LRIG1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the LRIG1 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 LRIG1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous LRIG1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native LRIG1 locus and enabling the study of LRIG1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of LRIG1 pathway restoration in tumor cells with silenced or reduced LRIG1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.