
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
ARID3B CRISPR Activation Plasmid (h) | sc-411492-ACT | 20 µg | $397.00 | |||
ARID3B CRISPR Activation Plasmid (h2) | sc-411492-ACT-2 | 20 µg | $397.00 |
ARID3B (AT-rich interaction domain 3B) encodes a DNA-binding transcription factor of the ARID family that regulates chromatin-dependent gene expression programs during development and lineage specification. By engaging AT-rich regulatory elements and cooperating with other transcriptional regulators, ARID3B influences processes such as cell fate determination, proliferation control, and differentiation-associated transcriptional networks. Altered ARID3B expression has been reported in multiple cancer contexts and other proliferative disorders, where dysregulated transcriptional control can impact pathways linked to growth, survival, and cellular identity. These features make ARID3B a useful node for studying transcriptional circuitry, epigenetic regulation, and gene regulatory network rewiring in human cells.
ARID3B CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous ARID3B expression without altering the underlying DNA sequence.
ARID3B CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the ARID3B 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 ARID3B transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous ARID3B expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native ARID3B locus and enabling the study of ARID3B-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of ARID3B pathway restoration in tumor cells with silenced or reduced ARID3B expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.