
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Bcl-xS/L CRISPR Activation Plasmid (h) | sc-400170-ACT | 20 µg | $397.00 | |||
Bcl-xS/L CRISPR Activation Plasmid (h2) | sc-400170-ACT-2 | 20 µg | $397.00 |
BCL2L1 encodes the Bcl-xS/L protein isoforms, central regulators of mitochondrial apoptosis that modulate outer membrane permeabilization through interactions with BCL2 family members such as BAX and BAK. Alternative splicing yields anti-apoptotic Bcl-xL and pro-apoptotic Bcl-xS, linking BCL2L1 to cell fate decisions during development, immune homeostasis, and responses to cellular stress. BCL2L1 activity integrates signals from growth factor and stress pathways, influencing caspase activation, mitochondrial integrity, and survival under genotoxic or metabolic challenge. Dysregulated BCL2L1 expression and isoform balance are frequently studied in cancer cell survival, therapy resistance mechanisms, and neurodegeneration-relevant models of apoptotic vulnerability.
Bcl-xS/L CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous BCL2L1 expression without altering the underlying DNA sequence.
Bcl-xS/L CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the BCL2L1 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 BCL2L1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Bcl-xS/L expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native BCL2L1 locus and enabling the study of Bcl-xS/L-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Bcl-xS/L pathway restoration in tumor cells with silenced or reduced BCL2L1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.