



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
cytochrome c1 Double Nickase Plasmid (h) | sc-404958-NIC | 20 µg | $410.00 | |||
cytochrome c1 Double Nickase Plasmid (h2) | sc-404958-NIC-2 | 20 µg | $410.00 |
Human CYC1 encodes cytochrome c1, an essential subunit of mitochondrial complex III (cytochrome bc1 complex) that transfers electrons from ubiquinol to cytochrome c within the inner mitochondrial membrane. This activity supports oxidative phosphorylation by contributing to proton translocation that helps establish the electrochemical gradient used for ATP synthesis. Perturbation of complex III components can alter mitochondrial redox balance and reactive oxygen species production, linking CYC1 biology to pathways governing cellular energy metabolism and stress responses. Dysregulated mitochondrial respiration and electron transport chain integrity are frequently studied in the context of metabolic remodeling and neurodegeneration-associated mitochondrial dysfunction.
cytochrome c1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the CYC1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within CYC1. 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 CYC1 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 CYC1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.