PSS2 Double Nickase Plasmid (h): sc-404133-NIC
- Target species: human
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- PSS2 Double Nickase Plasmid (h) consists of a pair of plasmids each encoding a D10A mutated Cas9 nuclease and a target-specific 20 nt guide RNA (gRNA) designed to knockout gene expression with greater specificity than its CRISPR/Cas9 KO counterpart
- Paired gRNA sequences are offset by approximately 20 bp to allow for specific Cas9-mediated double nicking of the genomic DNA, which mimics a DSB
- One plasmid in the pair contains a puromycin-resistance gene for selection; the other plasmid in the pair contains a GFP marker to visually confirm transfection
- PSS2 Double Nickase Plasmid (h) and PSS2 Double Nickase Plasmid (h2) encode distinct paired gRNA designs targeting PTDSS2. One or both designs may be available
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
PSS2 Double Nickase Plasmid (h) | sc-404133-NIC | 20 µg | $410.00 | |||
PSS2 Double Nickase Plasmid (h2) | sc-404133-NIC-2 | 20 µg | $410.00 |
PTDSS2 encodes phosphatidylserine synthase 2 (PSS2), an endoplasmic reticulum membrane enzyme that catalyzes phosphatidylserine production via base-exchange using phosphatidylethanolamine. This activity supports glycerophospholipid remodeling, membrane biogenesis, and organelle homeostasis, and it influences downstream processes such as apoptotic signaling where phosphatidylserine externalization serves as a key cellular cue. PTDSS2-dependent lipid composition can modulate vesicular trafficking, ER stress responses, and lipid-mediated signal transduction. Altered phosphatidylserine metabolism and ER lipid balance have been linked to dysregulated growth and survival pathways in multiple disease contexts, including cancer-associated metabolic rewiring.
PSS2 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the PTDSS2 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within PTDSS2. 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 PTDSS2 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 PTDSS2-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.