
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Eme1 CRISPR Activation Plasmid (h) | sc-403404-ACT | 20 µg | $397.00 |
Human EME1 encodes Eme1, a structure-specific endonuclease that forms the MUS81–EME1 complex to resolve Holliday junctions and other branched DNA intermediates generated during DNA replication and homologous recombination. This nuclease activity supports replication fork restart, processing of stalled or collapsed forks, and maintenance of genome stability, linking EME1 to S-phase checkpoint coordination and DNA damage response pathways. Dysregulation of MUS81–EME1–dependent DNA repair can increase chromosomal instability, a hallmark of many cancers, and is relevant to studying mechanisms that shape sensitivity to replication stress and genotoxic insults.
Eme1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous EME1 expression without altering the underlying DNA sequence.
Eme1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the EME1 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 EME1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Eme1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native EME1 locus and enabling the study of Eme1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Eme1 pathway restoration in tumor cells with silenced or reduced EME1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.