



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
MKP-1/DUSP1 Double Nickase Plasmid (m) | sc-422507-NIC | 20 µg | $410.00 | |||
MKP-1/DUSP1 Double Nickase Plasmid (m2) | sc-422507-NIC-2 | 20 µg | $410.00 |
Dusp1 encodes mitogen-activated protein kinase phosphatase-1 (MKP-1/DUSP1), a dual-specificity phosphatase that dephosphorylates and inactivates MAPKs including ERK, JNK, and p38. As an inducible immediate-early regulator, MKP-1 provides negative feedback control of stress- and cytokine-driven signaling, shaping transcriptional programs linked to inflammation, apoptosis, and cell-cycle progression. In mouse cells, Dusp1 is commonly studied in pathways downstream of TLR ligands, growth factors, and oxidative stress where it limits MAPK amplitude and duration. Dysregulated DUSP1 activity has been associated with inflammatory phenotypes and altered stress responses relevant to models of immune dysregulation, metabolic disease, and cancer biology.
MKP-1/DUSP1 Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Dusp1 locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Dusp1. 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 Dusp1 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 Dusp1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.