
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
GCN5 Double Nickase Plasmid (h) | sc-400767-NIC | 20 µg | $410.00 | |||
GCN5 Double Nickase Plasmid (h2) | sc-400767-NIC-2 | 20 µg | $410.00 |
KAT2A encodes the lysine acetyltransferase GCN5, a catalytic subunit of SAGA/ATAC coactivator complexes that acetylate histone H3 (notably H3K9 and H3K14) to promote chromatin accessibility and transcriptional activation. Through coordinated regulation of enhancer and promoter activity, GCN5 influences cell-cycle progression, DNA damage responses, and lineage-specific differentiation programs. GCN5 also acetylates non-histone substrates, linking acetylation dynamics to signaling networks and metabolic state. Dysregulated KAT2A/GCN5 activity and altered histone acetylation patterns have been associated with oncogenic transcriptional programs and developmental disorders, making it a useful node for studying epigenetic control of gene expression.
GCN5 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the KAT2A locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within KAT2A. 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 KAT2A 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 KAT2A-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.