Not CRISPR data: the image illustrates antibody quality for visualizing CRISPR experiment results.
Not CRISPR data: the image illustrates antibody quality for visualizing CRISPR experiment results.
TCF-1 Double Nickase Plasmid (m): sc-423299-NIC
- Target species: mouse
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- TCF-1 Double Nickase Plasmid (m) consists of a pair of plasmids each encoding a D10A mutated Cas9 nuclease and a target-specific 20 nt guide RNA (gRNA) designed to knockout gene expression with greater specificity than its CRISPR/Cas9 KO counterpart
- Paired gRNA sequences are offset by approximately 20 bp to allow for specific Cas9-mediated double nicking of the genomic DNA, which mimics a DSB
- One plasmid in the pair contains a puromycin-resistance gene for selection; the other plasmid in the pair contains a GFP marker to visually confirm transfection
- TCF-1 Double Nickase Plasmid (m) and TCF-1 Double Nickase Plasmid (m2) encode distinct paired gRNA designs targeting Tcf7. One or both designs may be available
- Following transfection, gene knockout efficiency can be assayed by WB, IF or IHC using antibody: TCF-1 Antibody (C-5): sc-271453
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
TCF-1 Double Nickase Plasmid (m) | sc-423299-NIC | 20 µg | $410.00 | |||
TCF-1 Double Nickase Plasmid (m2) | sc-423299-NIC-2 | 20 µg | $410.00 |
Tcf7 encodes the T cell factor 1 (TCF-1) transcription factor, a central effector of canonical Wnt/β-catenin signaling that binds TCF/LEF motifs to regulate gene programs controlling lymphocyte development, stem-like self-renewal states, and lineage specification. In mouse immune cells, TCF-1 shapes thymocyte maturation and peripheral T cell differentiation by coordinating chromatin accessibility and transcriptional networks that integrate signals from Wnt, Notch, and cytokine pathways. Dysregulated TCF-1 activity has been implicated in altered immune homeostasis and inflammatory phenotypes, and its pathway-level roles make it relevant to studies of tumor immunology and hematopoietic regulation. As a nuclear DNA-binding regulator, TCF-1 is also used as a node to interrogate context-specific transcriptional circuitry and epigenetic control in development and disease modeling.
TCF-1 Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Tcf7 locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Tcf7. 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 Tcf7 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 Tcf7-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.