
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
EPAS-1/HIF-2 alpha Double Nickase Plasmid (h) | sc-400647-NIC | 20 µg | $410.00 | |||
EPAS-1/HIF-2 alpha Double Nickase Plasmid (h2) | sc-400647-NIC-2 | 20 µg | $410.00 |
EPAS1 encodes EPAS-1/HIF-2 alpha, an oxygen-sensitive bHLH-PAS transcription factor that heterodimerizes with ARNT (HIF-1β) to coordinate hypoxia-adaptive gene expression. Under low oxygen, EPAS-1/HIF-2 alpha escapes prolyl hydroxylase–VHL–mediated degradation, accumulates in the nucleus, and activates programs controlling angiogenesis, erythropoiesis, iron metabolism, and metabolic rewiring. EPAS1 signaling intersects with PI3K–AKT–mTOR and MAPK pathways and contributes to cell fate decisions in endothelial and other oxygen-responsive tissues. Dysregulated EPAS1 activity and altered hypoxia signaling are implicated in tumor biology and vascular remodeling, and EPAS1 variants have been associated with oxygen-sensing disorders.
EPAS-1/HIF-2 alpha Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the EPAS1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within EPAS1. 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 EPAS1 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 EPAS1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.