
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
MKP-3 Double Nickase Plasmid (h) | sc-400850-NIC | 20 µg | $410.00 | |||
MKP-3 Double Nickase Plasmid (h2) | sc-400850-NIC-2 | 20 µg | $410.00 |
Dual specificity phosphatase 6 (DUSP6), also known as MAP kinase phosphatase 3 (MKP-3), is a cytosolic phosphatase that preferentially dephosphorylates and inactivates ERK1/2, thereby providing negative feedback control of the RAS–RAF–MEK–ERK/MAPK signaling cascade. By limiting ERK-driven transcriptional programs, MKP-3 helps regulate cell proliferation, differentiation, and responses to growth factor stimulation. Altered DUSP6 expression or activity can perturb MAPK signal amplitude and duration, linking this regulator to mechanisms relevant to oncogenic signaling, developmental processes, and stress-responsive cellular states. As a pathway-specific phosphatase, DUSP6 is frequently used as a readout and modulator in studies of MAPK network dynamics and feedback regulation.
MKP-3 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the DUSP6 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within DUSP6. 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 DUSP6 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 DUSP6-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.