
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Fibulin-3 Double Nickase Plasmid (h) | sc-401978-NIC | 20 µg | $410.00 | |||
Fibulin-3 Double Nickase Plasmid (h2) | sc-401978-NIC-2 | 20 µg | $410.00 |
EFEMP1 encodes fibulin-3, a secreted extracellular matrix glycoprotein that associates with elastic fiber networks and basement membrane architecture. Fibulin-3 modulates cell–matrix interactions, tissue remodeling, and protease balance, including regulation of metalloproteinase activity and signaling cross-talk with pathways such as TGF-β and EGFR that influence adhesion, migration, and stress responses. EFEMP1 expression is linked to extracellular matrix homeostasis in ocular, vascular, and epithelial tissues, and its dysregulation has been studied in contexts involving aberrant matrix deposition, impaired proteostasis, and altered angiogenic signaling. These features make EFEMP1 a useful target for mechanistic studies of ECM-driven cell behavior and microenvironment-dependent phenotypes.
Fibulin-3 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the EFEMP1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within EFEMP1. 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 EFEMP1 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 EFEMP1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.