
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
cathepsin B Double Nickase Plasmid (m) | sc-419873-NIC | 20 µg | $410.00 | |||
cathepsin B Double Nickase Plasmid (m2) | sc-419873-NIC-2 | 20 µg | $410.00 |
Mouse Ctsb encodes cathepsin B, a lysosomal cysteine protease that mediates intracellular protein turnover and contributes to endosomal–lysosomal proteolysis, autophagy, and antigen processing. Beyond lysosomes, cathepsin B can influence extracellular matrix remodeling through protease networks, shaping cell migration and tissue remodeling programs. Dysregulated cathepsin B activity has been associated with inflammatory signaling, neurodegeneration-related proteostasis defects, and tumor microenvironment remodeling in experimental models, making Ctsb a frequently used node for studying protease-dependent pathology. As part of the broader cathepsin family, it interfaces with pathways controlling lysosomal biogenesis, phagosome maturation, and cell death mechanisms linked to lysosomal membrane permeabilization.
cathepsin B Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Ctsb locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Ctsb. 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 Ctsb 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 Ctsb-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.