
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
cathepsin D Double Nickase Plasmid (m) | sc-419875-NIC | 20 µg | $410.00 | |||
cathepsin D Double Nickase Plasmid (m2) | sc-419875-NIC-2 | 20 µg | $410.00 |
Mouse Ctsd encodes cathepsin D, a lysosomal aspartyl endopeptidase that mediates bulk and selective proteolysis of endocytosed and autophagic cargo after delivery to the endo-lysosomal system. By regulating protein turnover, lysosome biogenesis, and antigen processing, cathepsin D influences cellular homeostasis programs linked to autophagy–lysosome flux, endosomal trafficking, and stress responses. Altered CTSD activity or expression has been associated with neurodegeneration and lysosomal storage phenotypes, as well as tumor biology through effects on extracellular matrix remodeling and survival signaling in the microenvironment. Ctsd is therefore widely used as a mechanistic node for studying lysosomal dysfunction, proteostasis collapse, and inflammatory signaling in mouse models.
cathepsin D Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Ctsd locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Ctsd. 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 Ctsd 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 Ctsd-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.