
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
I2PP2A Double Nickase Plasmid (h) | sc-400881-NIC | 20 µg | $410.00 | |||
I2PP2A Double Nickase Plasmid (h2) | sc-400881-NIC-2 | 20 µg | $410.00 |
SET encodes I2PP2A (also known as SET/TAF-Iβ), a multifunctional nuclear phosphoprotein that inhibits protein phosphatase 2A (PP2A) and modulates phosphorylation-dependent signaling. I2PP2A participates in chromatin organization and epigenetic control through interactions with histones and nucleosome assembly factors, influencing transcriptional programs, DNA replication, and DNA damage responses. By constraining PP2A activity, SET impacts MAPK/ERK, AKT, and cell cycle checkpoint pathways, shaping proliferation and stress signaling outputs. Dysregulated SET expression or function has been linked to altered phosphatase balance and chromatin states observed across diverse cancer contexts and other proliferative or genome-instability–associated phenotypes.
I2PP2A Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the SET locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within SET. 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 SET 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 SET-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.