
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
MASP-2 CRISPR Activation Plasmid (h) | sc-402549-ACT | 20 µg | $397.00 |
MASP2 encodes mannan-binding lectin serine protease 2 (MASP-2), a liver-derived protease that initiates the lectin pathway of complement after binding of pattern-recognition molecules such as MBL and ficolins to microbial glycans or altered self-surfaces. Upon activation, MASP-2 cleaves C4 and C2 to generate the C3 convertase, amplifying opsonization, inflammation, and downstream membrane attack complex formation as part of innate immune surveillance. This pathway intersects with coagulation and inflammatory signaling through complement effector fragments and regulators that shape leukocyte recruitment and tissue injury responses. Altered MASP2 activity or genetic variation has been associated with susceptibility to infection and immune-mediated inflammatory states, supporting its use in mechanistic studies of complement-driven pathology.
MASP-2 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous MASP2 expression without altering the underlying DNA sequence.
MASP-2 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the MASP2 locus in human cell lines. The system is built around a catalytically inactive Cas9 (dCas9) carrying two inactivating mutations (D10A and N863A) that eliminate nuclease activity while preserving DNA binding. This dCas9 is fused to VP64, a potent transcriptional activator, and is co-expressed with a blasticidin resistance gene for selection. The second plasmid encodes the MS2-p65-HSF1 fusion protein, a secondary activator complex that works in concert with dCas9-VP64, alongside a hygromycin resistance gene. The third plasmid encodes a target-specific 20 nt sgRNA fused to two MS2 RNA aptamers that recruit the MS2-p65-HSF1 complex to the activation site, accompanied by a puromycin resistance gene. The three plasmids are delivered at a 1:1:1 mass ratio for balanced expression of all system components.
Once assembled at the target locus, the SAM complex binds within approximately 200 bp upstream of the MASP2 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous MASP-2 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native MASP2 locus and enabling the study of MASP-2-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of MASP-2 pathway restoration in tumor cells with silenced or reduced MASP2 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.