
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
MC4-R Double Nickase Plasmid (m) | sc-421586-NIC | 20 µg | $410.00 | |||
MC4-R Double Nickase Plasmid (m2) | sc-421586-NIC-2 | 20 µg | $410.00 |
Mouse Mc4r encodes melanocortin-4 receptor (MC4-R), a G protein–coupled receptor that couples primarily to Gs to stimulate adenylyl cyclase and cAMP/PKA signaling in response to melanocortin peptides such as α-MSH. In hypothalamic circuits, MC4-R integrates POMC and AgRP neuronal inputs to regulate appetite, energy expenditure, and autonomic output, linking nutrient status to systemic metabolic control. MC4-R signaling intersects with neuroendocrine pathways controlling glucose homeostasis, thermogenesis, and sympathetic tone. Genetic disruption or altered signaling of Mc4r is widely used to model neuro-metabolic phenotypes and to interrogate GPCR-dependent transcriptional and neuronal activity programs.
MC4-R Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Mc4r locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Mc4r. 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 Mc4r 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 Mc4r-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.