



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
E2F-3 Double Nickase Plasmid (h) | sc-400934-NIC | 20 µg | $410.00 | |||
E2F-3 Double Nickase Plasmid (h2) | sc-400934-NIC-2 | 20 µg | $410.00 |
E2F3 encodes the human E2F-3 transcription factor, a core regulator of cell-cycle progression that controls expression of genes required for G1/S transition, DNA replication, and S-phase entry. E2F-3 activity is shaped by the RB/E2F axis, integrating mitogenic signaling with checkpoint control to coordinate proliferation and genome maintenance. Through transcriptional programs linked to cyclins, replication licensing factors, and DNA repair components, E2F-3 influences cellular growth, senescence, and apoptosis under stress. Dysregulation of E2F3 expression or upstream RB pathway control is frequently associated with aberrant proliferation phenotypes and is studied in the context of oncogenic signaling and tumor suppressor network disruption.
E2F-3 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the E2F3 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within E2F3. When directed to adjacent sites on opposite DNA strands, the two nickases generate offset single-strand nicks that together produce a staggered double-strand break, requiring coordinated on-target activity from both guides. The resulting DNA break is resolved by endogenous cellular repair pathways, most commonly through non-homologous end joining (NHEJ), leading to insertions or deletions that disrupt E2F3 function. By requiring dual sgRNA engagement at the target locus, the double nicking approach enhances editing specificity and provides a complementary CRISPR strategy for applications where additional control over targeting precision is desired.
To support efficient identification of edited cells, one plasmid encodes GFP for fluorescent visualization of transfected populations, while the companion plasmid carries a puromycin resistance gene for antibiotic selection. Together, these features support efficient enrichment of co-transfected populations and simplify the validation of E2F3-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.