
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
AIRE-1 Double Nickase Plasmid (h) | sc-401225-NIC | 20 µg | $410.00 | |||
AIRE-1 Double Nickase Plasmid (h2) | sc-401225-NIC-2 | 20 µg | $410.00 |
AIRE (autoimmune regulator) encodes the transcriptional regulator AIRE-1, a key driver of central immune tolerance in medullary thymic epithelial cells. AIRE-1 promotes ectopic expression of tissue-restricted antigens and supports negative selection and regulatory T cell development through transcriptional and chromatin-associated processes that shape thymic antigen presentation. Disruption of AIRE perturbs tolerance pathways and is strongly linked to autoimmune phenotypes, including autoimmune polyendocrine syndromes and broader immune dysregulation. These functions make AIRE a valuable target for dissecting transcriptional control of immune tolerance, antigen presentation networks, and thymus-associated epigenetic regulation.
AIRE-1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the AIRE locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within AIRE. 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 AIRE 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 AIRE-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.