
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
PSGL-1 Double Nickase Plasmid (h) | sc-401534-NIC | 20 µg | $410.00 | |||
PSGL-1 Double Nickase Plasmid (h2) | sc-401534-NIC-2 | 20 µg | $410.00 |
SELPLG encodes P-selectin glycoprotein ligand-1 (PSGL-1), a mucin-like, sialylated and fucosylated cell-surface glycoprotein expressed on most leukocytes that mediates tethering and rolling on activated endothelium via binding to P-, E-, and L-selectins. Through its role in selectin-dependent adhesion, PSGL-1 coordinates early steps of leukocyte recruitment, transmigration, and inflammatory cell trafficking, integrating with chemokine signaling and integrin activation to stabilize leukocyte-endothelial interactions. PSGL-1 also participates in leukocyte-platelet crosstalk and can influence downstream immune activation programs by modulating cell contact-dependent signaling. Dysregulated PSGL-1–selectin biology is implicated in chronic inflammatory disorders, vascular inflammation, thrombosis-associated leukocyte recruitment, and cancer-associated metastasis research contexts, making SELPLG a useful target for mechanistic studies of adhesion and immune regulation.
PSGL-1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the SELPLG locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within SELPLG. 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 SELPLG 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 SELPLG-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.