
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
14-3-3 σ Double Nickase Plasmid (h) | sc-401096-NIC | 20 µg | $410.00 | |||
14-3-3 σ Double Nickase Plasmid (h2) | sc-401096-NIC-2 | 20 µg | $410.00 |
SFN encodes the human 14-3-3 sigma (stratifin) adaptor protein, a member of the 14-3-3 family that binds phosphoserine/phosphothreonine motifs to modulate protein localization, stability, and signaling output. It is best known for coordinating cell-cycle checkpoint control and stress responses by influencing cyclin-CDK regulators and other phosphorylated effectors, thereby linking DNA damage signaling to cell-cycle arrest and differentiation programs. Through these interactions, 14-3-3 sigma contributes to epithelial homeostasis and cytoskeletal organization, and it intersects with pathways commonly perturbed in oncogenic transformation and genotoxic stress. Altered SFN expression or regulation has been reported across multiple cancer contexts and is frequently studied as a marker of disrupted checkpoint signaling and epithelial tumor biology.
14-3-3 σ Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the SFN locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within SFN. 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 SFN 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 SFN-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.