



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
LDLR Double Nickase Plasmid (m) | sc-421408-NIC | 20 µg | $410.00 |
Mouse Ldlr encodes the low-density lipoprotein receptor (LDLR), a cell-surface endocytic receptor that clears circulating LDL particles through clathrin-mediated internalization in hepatocytes and other tissues. LDLR governs cholesterol uptake and contributes to lipid homeostasis by regulating intracellular sterol availability that feeds back on SREBP-controlled transcriptional programs and broader lipoprotein metabolism pathways. Disruption or reduced activity of LDLR is classically linked to dyslipidemia phenotypes and atherosclerosis-relevant biology, making Ldlr a central node for studying cholesterol trafficking and systemic lipid regulation in vivo and in cultured cells. Experimental perturbation of Ldlr is commonly used to interrogate LDL particle uptake kinetics, receptor recycling, and downstream sterol-responsive gene networks.
LDLR Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Ldlr locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Ldlr. 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 Ldlr 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 Ldlr-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.