
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
DSPP Double Nickase Plasmid (h) | sc-401195-NIC | 20 µg | $410.00 | |||
DSPP Double Nickase Plasmid (h2) | sc-401195-NIC-2 | 20 µg | $410.00 |
Dentin sialophosphoprotein (DSPP) is a secreted extracellular matrix precursor that is proteolytically processed into dentin sialoprotein and dentin phosphoprotein, key components that regulate mineral nucleation, crystal growth, and matrix organization in mineralized tissues. In odontoblasts, DSPP contributes to dentinogenesis by coordinating collagen-rich matrix maturation and hydroxyapatite deposition, influencing calcium/phosphate handling and extracellular matrix remodeling. Altered DSPP expression or sequence disrupts dentin mineralization dynamics and is linked to inherited dentin defects, making it a useful locus for studying genotype–phenotype relationships in craniofacial biology. DSPP also serves as a marker for odontogenic differentiation in stem cell and developmental models where extracellular matrix cues shape tissue architecture.
DSPP Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the DSPP locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within DSPP. 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 DSPP 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 DSPP-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.