
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
WDHD1 CRISPR Activation Plasmid (h) | sc-408824-ACT | 20 µg | $397.00 |
WDHD1 (WD repeat and HMG-box DNA binding protein 1) is a conserved replication and genome maintenance factor that coordinates DNA replication initiation, fork progression, and the response to replication stress. In human cells, WDHD1 supports replisome organization and proper S-phase progression, linking DNA synthesis with checkpoints and repair processes that preserve genome integrity. Dysregulated WDHD1 expression or activity is associated with proliferative phenotypes and has been reported across multiple cancer contexts, consistent with its role in supporting rapid cell-cycle transit. As a chromatin-associated regulator of replication dynamics, WDHD1 is frequently studied in pathways governing DNA damage signaling, replication fork stability, and chromosome segregation.
WDHD1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous WDHD1 expression without altering the underlying DNA sequence.
WDHD1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the WDHD1 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 WDHD1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous WDHD1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native WDHD1 locus and enabling the study of WDHD1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of WDHD1 pathway restoration in tumor cells with silenced or reduced WDHD1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.