



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
TET3 Double Nickase Plasmid (h) | sc-414997-NIC | 20 µg | $410.00 |
Human TET3 encodes a Fe(II)/2-oxoglutarate–dependent dioxygenase that catalyzes iterative oxidation of 5-methylcytosine to 5-hydroxymethylcytosine and further derivatives, supporting active and passive DNA demethylation. This activity shapes epigenetic programming, chromatin accessibility, and transcriptional control during early development, neuronal maturation, and cellular reprogramming, and interfaces with DNA repair and replication-associated processes. Dysregulated TET3-dependent hydroxymethylation has been implicated in altered gene expression programs observed in neurodevelopmental phenotypes and tumor biology, making it a relevant target for mechanistic studies of epigenome dynamics.
TET3 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the TET3 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within TET3. 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 TET3 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 TET3-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.