
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
TLR9 Double Nickase Plasmid (m) | sc-429882-NIC | 20 µg | $410.00 | |||
TLR9 Double Nickase Plasmid (m2) | sc-429882-NIC-2 | 20 µg | $410.00 |
Mouse Tlr9 encodes Toll-like receptor 9 (TLR9), an endosomal pattern-recognition receptor that detects unmethylated CpG motifs in microbial and self-derived DNA. Upon ligand engagement and endosomal maturation, TLR9 signals primarily through MYD88 to activate IRAK–TRAF6 cascades, inducing NF-κB and IRF7-dependent transcription of proinflammatory cytokines and type I interferons. This pathway coordinates innate immune activation in macrophages, dendritic cells, and B cells, shaping antigen presentation and adaptive immune polarization. Dysregulated TLR9 signaling has been implicated in inflammatory and autoimmune phenotypes, aberrant responses to nucleic acids, and tumor-immune interactions in mouse models.
TLR9 Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Tlr9 locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Tlr9. 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 Tlr9 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 Tlr9-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.