
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
FcRn Double Nickase Plasmid (m) | sc-420308-NIC | 20 µg | $410.00 | |||
FcRn Double Nickase Plasmid (m2) | sc-420308-NIC-2 | 20 µg | $410.00 |
Mouse Fcgrt encodes the neonatal Fc receptor (FcRn), an MHC class I–related molecule that binds IgG and albumin in a pH-dependent manner to regulate their intracellular trafficking and systemic half-life. FcRn functions prominently in endosomal sorting and recycling pathways, limiting lysosomal degradation and supporting transcytosis across polarized epithelia and endothelium. Through these processes, FcRn influences humoral immunity, antigen handling, and tissue distribution of immunoglobulins, with relevance to inflammatory and autoimmune mechanisms driven by IgG homeostasis. Dysregulated FcRn activity has been associated with altered IgG persistence and immune complex biology, making Fcgrt a useful target for studying Fc-dependent immune regulation in mouse models.
FcRn Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Fcgrt locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Fcgrt. 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 Fcgrt 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 Fcgrt-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.