
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
IL-33 Double Nickase Plasmid (h) | sc-417699-NIC | 20 µg | $410.00 | |||
IL-33 Double Nickase Plasmid (h2) | sc-417699-NIC-2 | 20 µg | $410.00 |
Human IL33 encodes IL-33, a nuclear-associated cytokine of the IL-1 family that is released upon cellular stress or damage and functions as an alarmin to shape innate and adaptive immunity. Extracellular IL-33 signals primarily through the ST2/IL1RL1–IL-1RAcP receptor complex to activate MyD88-dependent pathways, including NF-κB and MAPK cascades, promoting type 2 inflammatory programs and tissue remodeling. IL-33 activity influences epithelial–stromal and immune cell crosstalk at barrier sites, affecting eosinophil, mast cell, basophil, and ILC2 responses. Dysregulated IL33 signaling has been implicated in asthma and allergic inflammation, as well as inflammatory and fibrotic processes in multiple organ systems, making it a relevant node for mechanistic studies of immunopathology.
IL-33 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the IL33 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within IL33. 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 IL33 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 IL33-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.