Exo1 Double Nickase Plasmid (h): sc-402356-NIC
- Target species: human
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- Exo1 Double Nickase Plasmid (h) consists of a pair of plasmids each encoding a D10A mutated Cas9 nuclease and a target-specific 20 nt guide RNA (gRNA) designed to knockout gene expression with greater specificity than its CRISPR/Cas9 KO counterpart
- Paired gRNA sequences are offset by approximately 20 bp to allow for specific Cas9-mediated double nicking of the genomic DNA, which mimics a DSB
- One plasmid in the pair contains a puromycin-resistance gene for selection; the other plasmid in the pair contains a GFP marker to visually confirm transfection
- Exo1 Double Nickase Plasmid (h) and Exo1 Double Nickase Plasmid (h2) encode distinct paired gRNA designs targeting EXO1. One or both designs may be available
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Exo1 Double Nickase Plasmid (h) | sc-402356-NIC | 20 µg | $410.00 | |||
Exo1 Double Nickase Plasmid (h2) | sc-402356-NIC-2 | 20 µg | $410.00 |
EXO1 encodes Exo1, a structure-specific 5′→3′ exonuclease that participates in DNA end resection during homologous recombination and in the processing of stalled replication forks. It also contributes to mismatch repair by coordinating with MutS/MutL pathway components to excise mispaired DNA, thereby maintaining genome stability. Through these activities, EXO1 influences cell-cycle checkpoint signaling, replication stress responses, and the resolution of recombination intermediates. Altered EXO1 function or expression has been associated with mutator phenotypes and genomic instability observed across multiple cancer-related contexts, supporting its utility as a mechanistic node in DNA repair research.
Exo1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the EXO1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within EXO1. 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 EXO1 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 EXO1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.