
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
ERGIC-53 CRISPR Activation Plasmid (h) | sc-401602-ACT | 20 µg | $397.00 |
LMAN1 encodes ERGIC-53, a lectin-like cargo receptor that cycles between the endoplasmic reticulum and ER–Golgi intermediate compartment to mediate ER export of select glycoproteins. Through recognition of high-mannose N-glycans and interaction with COPII machinery, ERGIC-53 helps coordinate secretory pathway trafficking and quality control of newly synthesized proteins. LMAN1 also participates in ER homeostasis and links glycoprotein processing to vesicular transport dynamics. Genetic disruption of LMAN1 has been associated with combined factor V and factor VIII deficiency, underscoring its relevance to regulated secretion and protein maturation in the early secretory pathway.
ERGIC-53 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous LMAN1 expression without altering the underlying DNA sequence.
ERGIC-53 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the LMAN1 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 LMAN1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous ERGIC-53 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native LMAN1 locus and enabling the study of ERGIC-53-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of ERGIC-53 pathway restoration in tumor cells with silenced or reduced LMAN1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.