Date published: 2026-7-7
Visit Santa Cruz Animal Health

1-800-457-3801

SCBT Portrait Logo
Seach Input
Contact Us
Sign In Account
Quick Order
Cart (0)
The Double Nickase Plasmid features a U6 promoter for sgRNA expression, a 20 nt targeting sequence, and a gRNA scaffold to guide Cas9n. It includes a CBh promoter for Cas9n (D10A) and puromycin resistance, GFP for transfection verification, and nuclear localization signals (NLS). The 2A peptide allows co-expression of Cas9n and Puro from a single promoter, enabling precise genome editing with reduced off-target effects.
The Double Nickase Plasmid features a U6 promoter for sgRNA expression, a 20 nt targeting sequence, and a gRNA scaffold to guide Cas9n. It includes a CBh promoter for Cas9n (D10A) and puromycin resistance, GFP for transfection verification, and nuclear localization signals (NLS). The 2A peptide allows co-expression of Cas9n and Puro from a single promoter, enabling precise genome editing with reduced off-target effects.
The Double Nickase Plasmid features a U6 promoter for sgRNA expression, a 20 nt targeting sequence, and a gRNA scaffold to guide Cas9n. It includes a CBh promoter for Cas9n (D10A) and puromycin resistance, GFP for transfection verification, and nuclear localization signals (NLS). The 2A peptide allows co-expression of Cas9n and Puro from a single promoter, enabling precise genome editing with reduced off-target effects.
The Double Nickase Plasmid features a U6 promoter for sgRNA expression, a 20 nt targeting sequence, and a gRNA scaffold to guide Cas9n. It includes a CBh promoter for Cas9n (D10A) and puromycin resistance, GFP for transfection verification, and nuclear localization signals (NLS). The 2A peptide allows co-expression of Cas9n and Puro from a single promoter, enabling precise genome editing with reduced off-target effects.
Cas9n Nickase gRNA Plasmid Targeting: Dual gRNA plasmids create single-strand nicks at precise DNA sequences for efficient genome editing using Cas9n Nickase.
Cas9n Nickase gRNA Plasmid Targeting: Dual gRNA plasmids create single-strand nicks at precise DNA sequences for efficient genome editing using Cas9n Nickase.
This image illustrates the Cas9n Nickase mechanism used for precise genome editing. Two plasmids (Plasmid 1 and Plasmid 2) are shown, each containing a targeted DNA sequence. The system utilizes single-guide RNAs (sgRNA) to direct Cas9n Nickase to specific genomic locations, represented by the blue and pink DNA strands. The sgRNA scaffold aids in guiding Cas9n to the 20 nucleotide (nt) target sequence on the DNA. Cas9n makes single-strand cuts at NCC and NGG sites, enabling precise gene modifications without creating double-strand breaks.
This image illustrates the Cas9n Nickase mechanism used for precise genome editing. Two plasmids (Plasmid 1 and Plasmid 2) are shown, each containing a targeted DNA sequence. The system utilizes single-guide RNAs (sgRNA) to direct Cas9n Nickase to specific genomic locations, represented by the blue and pink DNA strands. The sgRNA scaffold aids in guiding Cas9n to the 20 nucleotide (nt) target sequence on the DNA. Cas9n makes single-strand cuts at NCC and NGG sites, enabling precise gene modifications without creating double-strand breaks.
The Double Nickase Plasmid features a U6 promoter for sgRNA expression, a 20 nt targeting sequence, and a gRNA scaffold to guide Cas9n. It includes a CBh promoter for Cas9n (D10A) and puromycin resistance, GFP for transfection verification, and nuclear localization signals (NLS). The 2A peptide allows co-expression of Cas9n and Puro from a single promoter, enabling precise genome editing with reduced off-target effects.

TdT Double Nickase Plasmid (h): sc-406822-NIC

0.0(0)
Write a reviewAsk a question

Datasheets
  • Target species: human
  • 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
  • TdT Double Nickase Plasmid (h) 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
  • TdT Double Nickase Plasmid (h) and TdT Double Nickase Plasmid (h2) encode distinct paired gRNA designs targeting DNTT. One or both designs may be available
  • Following transfection, gene knockout efficiency can be assayed by WB, IF or IHC using antibody: TdT Antibody (C-11): sc-393710
    Gene Editing Promo Banner

    Ordering Information

    Product NameCatalog #UNITPriceQtyFAVORITES

    TdT Double Nickase Plasmid (h)

    sc-406822-NIC
    20 µg
    		$410.00

    TdT Double Nickase Plasmid (h2)

    sc-406822-NIC-2
    20 µg
    		$410.00

    DNA nucleotidylexotransferase (DNTT) encodes terminal deoxynucleotidyl transferase (TdT), a specialized DNA polymerase that adds non-templated nucleotides to DNA ends during V(D)J recombination. TdT activity increases junctional diversity in immunoglobulin and T-cell receptor genes, linking it to programmed double-strand break repair and end-processing within the non-homologous end joining (NHEJ) framework. Expression is largely restricted to developing lymphocytes, making DNTT a key determinant of adaptive immune repertoire formation. Dysregulated TdT expression is widely used as a molecular marker of immature lymphoid states and is relevant to studies of lymphoid malignancy biology and aberrant DNA repair.

    TdT Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the DNTT locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within DNTT. 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 DNTT 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 DNTT-disrupted clones.

    For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

    1-800-457-3801
    Visit Santa Cruz Animal Health|Visit San Juan Ranch
    Santa Cruz Animal Health is a leading provider of animal health care products. ©2026 Santa Cruz Biotechnology Inc. All Rights Reserved.
    Toll-Free: 1-800-457-3801 - Terms & Conditions | Privacy Policy | Legal
    “Santa Cruz Animal Health”, “San Juan Ranch”, the San Juan Ranch logo, “UltraCruz”, “Supplement of Champions”, are registered trademarks of Santa Cruz Biotechnology, Inc. All other trademarks are the property of their respective owners.