
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
CHIP/STUB1 Double Nickase Plasmid (h) | sc-400815-NIC | 20 µg | $410.00 | |||
CHIP/STUB1 Double Nickase Plasmid (h2) | sc-400815-NIC-2 | 20 µg | $410.00 |
STUB1 encodes CHIP, a U-box E3 ubiquitin ligase and co-chaperone that couples HSP70/HSP90 client recognition to ubiquitination and proteasomal turnover, thereby regulating protein quality control. CHIP/STUB1 also interfaces with autophagy pathways and stress-response signaling to maintain proteostasis under conditions such as heat shock and oxidative stress. By controlling the stability of misfolded or damaged proteins, it influences cellular homeostasis, mitochondrial function, and apoptosis-related processes. Dysregulation or pathogenic variation in STUB1 is linked to neurodegeneration and ataxia phenotypes, making it a widely studied node in proteinopathy-relevant pathways.
CHIP/STUB1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the STUB1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within STUB1. 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 STUB1 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 STUB1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.