
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
SMCHD1 CRISPR Activation Plasmid (h) | sc-404142-ACT | 20 µg | $397.00 | |||
SMCHD1 CRISPR Activation Plasmid (h2) | sc-404142-ACT-2 | 20 µg | $397.00 |
SMCHD1 (structural maintenance of chromosomes flexible hinge domain containing 1) is an epigenetic regulator that supports long-range chromatin interactions and stable transcriptional repression across the genome. In human cells, SMCHD1 contributes to higher-order chromatin architecture, DNA methylation maintenance at selected loci, and silencing of repetitive elements, intersecting with X-chromosome inactivation and broader chromatin-compaction programs. Its activity influences gene expression networks governing differentiation and genome stability through chromatin remodeling and heterochromatin-associated processes. Altered SMCHD1 function is linked to dysregulated epigenetic control in disorders such as facioscapulohumeral muscular dystrophy type 2 and Bosma arhinia microphthalmia syndrome, making it a key target for mechanistic studies of chromatin-mediated gene regulation.
SMCHD1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous SMCHD1 expression without altering the underlying DNA sequence.
SMCHD1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the SMCHD1 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 SMCHD1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous SMCHD1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native SMCHD1 locus and enabling the study of SMCHD1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of SMCHD1 pathway restoration in tumor cells with silenced or reduced SMCHD1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.