
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
TLR4 Double Nickase Plasmid (m) | sc-423419-NIC | 20 µg | $410.00 |
Mouse Tlr4 encodes Toll-like receptor 4 (TLR4), a pattern-recognition receptor that detects lipopolysaccharide and other damage-associated ligands to initiate innate immune signaling. Upon activation, TLR4 engages MyD88- and TRIF-dependent pathways, driving NF-κB and IRF3 transcriptional programs that regulate pro-inflammatory cytokines, type I interferon responses, and costimulatory signals. TLR4 signaling influences macrophage and dendritic cell activation, cytokine secretion, and leukocyte recruitment, linking pathogen sensing to tissue inflammation. Dysregulated TLR4 activity is widely studied in models of sepsis-like inflammation, metabolic inflammation, atherosclerosis, and neuroinflammatory processes.
TLR4 Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Tlr4 locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Tlr4. 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 Tlr4 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 Tlr4-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.