



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
IRF-1 Double Nickase Plasmid (m) | sc-421146-NIC | 20 µg | $410.00 |
Mouse Irf1 encodes interferon regulatory factor 1 (IRF-1), a nuclear transcription factor induced by type I and type II interferons that integrates cytokine and pathogen-sensing cues into gene expression programs. IRF-1 coordinates innate and adaptive immune functions by regulating interferon-stimulated genes, antigen presentation machinery, and pro-inflammatory transcriptional networks downstream of JAK/STAT and related signaling pathways. It also contributes to cell-cycle control and apoptosis, linking immune activation to growth regulation and stress responses. Dysregulated IRF-1 activity is implicated in altered antiviral defense, immune-mediated inflammation, and tumor-immune interactions, making Irf1 a common target in mechanistic immunology and cancer biology studies.
IRF-1 Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Irf1 locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Irf1. 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 Irf1 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 Irf1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.