
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
HNF-3α Double Nickase Plasmid (h) | sc-400743-NIC | 20 µg | $410.00 | |||
HNF-3α Double Nickase Plasmid (h2) | sc-400743-NIC-2 | 20 µg | $410.00 |
FOXA1 (HNF-3α) is a winged-helix pioneer transcription factor that binds compacted chromatin to establish regulatory accessibility and coordinate lineage-specific transcriptional programs in human epithelial tissues. It regulates networks controlling differentiation, hormone receptor signaling, and metabolic homeostasis, including crosstalk with androgen and estrogen receptor pathways and modulation of enhancer activity. Through its effects on cell identity and transcriptional output, altered FOXA1 function has been linked to changes in proliferation and differentiation states observed across multiple tumor types and endocrine-associated disorders. FOXA1 is therefore widely used as a model for studying chromatin remodeling, enhancer selection, and context-dependent transcriptional regulation.
HNF-3α Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the FOXA1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within FOXA1. 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 FOXA1 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 FOXA1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.