



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
AP-3β Double Nickase Plasmid (h) | sc-406082-NIC | 20 µg | $410.00 | |||
AP-3β Double Nickase Plasmid (h2) | sc-406082-NIC-2 | 20 µg | $410.00 |
AP3B1 encodes the β1 subunit of the adaptor protein complex 3 (AP-3β), a heterotetrameric coat adaptor that mediates cargo selection and sorting from endosomal/TGN membranes to lysosomes and related organelles. AP-3-dependent trafficking helps regulate formation and function of lysosome-related compartments, vesicle biogenesis, and delivery of membrane proteins required for intracellular transport and organelle homeostasis. Disruption of AP3B1 is associated with Hermansky–Pudlak syndrome type 2 and broader defects in immune cell granule biology, platelet dense granules, and pigmentation pathways, making it relevant for studies of vesicular trafficking and organelle dysfunction.
AP-3β Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the AP3B1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within AP3B1. 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 AP3B1 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 AP3B1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.