
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
ERAP1 Double Nickase Plasmid (m) | sc-429840-NIC | 20 µg | $410.00 | |||
ERAP1 Double Nickase Plasmid (m2) | sc-429840-NIC-2 | 20 µg | $410.00 |
Mouse ERAP1 (Erap1) is an endoplasmic reticulum–resident zinc metallopeptidase that trims antigenic peptide precursors to optimal lengths for loading onto MHC class I molecules, shaping the immunopeptidome and CD8+ T cell recognition. Beyond antigen processing, ERAP1 contributes to ER protein quality control and can influence ER stress responses through its roles in peptide handling and proteostasis. Variation in ERAP1 activity has been linked to immune dysregulation and inflammatory phenotypes, making Erap1 a useful target for studying antigen presentation pathways and immune signaling networks. In mouse models, perturbing Erap1 supports mechanistic research into autoimmunity- and infection-relevant processes without implying clinical outcomes.
ERAP1 Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Erap1 locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Erap1. 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 Erap1 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 Erap1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.