
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Evi-1 CRISPR Activation Plasmid (h) | sc-404112-ACT | 20 µg | $397.00 | |||
Evi-1 CRISPR Activation Plasmid (h2) | sc-404112-ACT-2 | 20 µg | $397.00 |
MECOM encodes the transcription factor Evi-1, a zinc finger protein that binds regulatory DNA elements to control lineage specification, self-renewal, and differentiation programs. Evi-1 influences chromatin state and transcriptional networks involved in hematopoiesis and developmental patterning, with downstream effects on proliferation and apoptosis. Dysregulated MECOM/Evi-1 activity is linked to aberrant transcriptional control in cancer biology, particularly in hematologic malignancies, and is also implicated in broader developmental and cell fate phenotypes. These properties make MECOM a relevant node for studying transcriptional circuitry, epigenetic regulation, and oncogenic pathway remodeling in human cells.
Evi-1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous MECOM expression without altering the underlying DNA sequence.
Evi-1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the MECOM 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 MECOM transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Evi-1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native MECOM locus and enabling the study of Evi-1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Evi-1 pathway restoration in tumor cells with silenced or reduced MECOM expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.