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.
SSB-2 Double Nickase Plasmid (h): sc-408079-NIC
- Target species: human
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- SSB-2 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
- SSB-2 Double Nickase Plasmid (h) and SSB-2 Double Nickase Plasmid (h2) encode distinct paired gRNA designs targeting SPSB2. One or both designs may be available
- Following transfection, gene knockout efficiency can be assayed by WB, IF or IHC using antibody: SSB-2 Antibody (32-K): sc-100863
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
SSB-2 Double Nickase Plasmid (h) | sc-408079-NIC | 20 µg | $410.00 |
Human SPSB2 encodes SSB-2, a SOCS box–containing adaptor protein that functions as a substrate recognition component of Cullin-RING E3 ubiquitin ligase complexes. Through its SPRY domain, SSB-2 binds specific client proteins and promotes their ubiquitination and proteasomal turnover, shaping signal transduction networks downstream of cytokine and growth factor inputs. SPSB2 activity has been linked to regulation of inflammatory signaling and innate immune responses, including modulation of pathways that intersect with JAK/STAT and NF-κB–associated processes. Dysregulated ubiquitin-mediated proteostasis involving SPSB2 may contribute to altered immune homeostasis and disease-relevant phenotypes in contexts where cytokine signaling and protein stability are perturbed.
SSB-2 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the SPSB2 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within SPSB2. 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 SPSB2 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 SPSB2-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.