
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
galectin-4 Double Nickase Plasmid (h) | sc-404255-NIC | 20 µg | $410.00 | |||
galectin-4 Double Nickase Plasmid (h2) | sc-404255-NIC-2 | 20 µg | $410.00 |
LGALS4 encodes galectin-4, a β-galactoside–binding lectin enriched in intestinal and epithelial tissues that functions at the cell surface and in the extracellular milieu to organize glycan-dependent interactions. By binding specific glycoproteins and glycolipids, galectin-4 contributes to epithelial polarity, adherens/tight junction stability, and modulation of cell–cell and cell–matrix adhesion, influencing migration and barrier homeostasis. Galectin-4 activity intersects with processes linked to mucosal immunity and inflammatory signaling through regulation of receptor clustering and endocytic trafficking. Dysregulated LGALS4 expression has been associated with altered epithelial differentiation and colorectal disease contexts, making it a useful target for dissecting glycan-mediated signaling and barrier biology.
galectin-4 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the LGALS4 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within LGALS4. 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 LGALS4 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 LGALS4-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.