
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
CUL-1 Double Nickase Plasmid (h) | sc-400972-NIC | 20 µg | $410.00 | |||
CUL-1 Double Nickase Plasmid (h2) | sc-400972-NIC-2 | 20 µg | $410.00 |
Human CUL1 encodes cullin-1 (CUL-1), a core scaffold of SCF (SKP1–CUL1–F-box) E3 ubiquitin ligase complexes that catalyze ubiquitination and proteasomal turnover of phosphorylated substrates. Through regulated assembly with SKP1, RBX1, and diverse F-box adaptors, CUL-1 controls cell-cycle transitions, DNA replication licensing, and signal transduction by directing degradation of key regulators such as cyclins, CDK inhibitors, and pathway-specific transcription factors. CUL-1 activity is modulated by neddylation/deneddylation dynamics and links ubiquitin-dependent proteostasis to checkpoint control and stress responses. Dysregulation of SCF–CUL1-mediated substrate turnover has been associated with oncogenic signaling, genomic instability, and altered inflammatory or metabolic signaling in disease-relevant cellular contexts.
CUL-1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the CUL1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within CUL1. 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 CUL1 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 CUL1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.