
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Mucin 5AC/MUC5AC Double Nickase Plasmid (m) | sc-421752-NIC | 20 µg | $410.00 |
Muc5ac encodes the gel-forming mucin Mucin 5AC/MUC5AC, a heavily O-glycosylated secreted glycoprotein that is a major structural component of the airway and gastrointestinal mucus barrier in mouse epithelia. Its regulated expression supports mucociliary clearance, epithelial hydration, and innate defense by shaping mucus viscoelastic properties and limiting pathogen contact with the cell surface. Muc5ac is induced during epithelial differentiation and inflammatory remodeling through cytokine- and stress-responsive programs, including EGFR/MAPK signaling and IL-13–STAT6–driven goblet cell metaplasia. Dysregulated Muc5ac production and altered mucin glycosylation are linked to mucus plugging and chronic inflammation in respiratory disease models and to epithelial barrier changes in gastrointestinal pathology, making it a common readout in studies of airway hypersecretion and mucosal immunity.
Mucin 5AC/MUC5AC Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Muc5ac locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Muc5ac. 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 Muc5ac 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 Muc5ac-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.