
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
4E-BP1 CRISPR Activation Plasmid (m) | sc-420149-ACT | 20 µg | $397.00 |
Mouse Eif4ebp1 encodes 4E-BP1, a phosphorylation-sensitive translational repressor that binds eIF4E to restrain cap-dependent translation and global protein synthesis. In response to growth factors and nutrients, mTORC1-mediated phosphorylation of 4E-BP1 releases eIF4E, promoting assembly of the eIF4F complex and selective translation programs that regulate cell growth, metabolism, stress adaptation, and proliferation. This node integrates PI3K–AKT–mTOR signaling with ribosome biogenesis and proteostasis, making Eif4ebp1 a key determinant of translational control in contexts such as metabolic regulation and oncogenic signaling. Altered 4E-BP1 phosphorylation state and eIF4E availability are widely used readouts of pathway activation and have been associated with dysregulated growth and survival phenotypes in disease-relevant models.
4E-BP1 CRISPR Activation Plasmid (m) provides a targeted, non-destructive approach to upregulating endogenous Eif4ebp1 expression without altering the underlying DNA sequence.
4E-BP1 CRISPR Activation Plasmid (m) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the Eif4ebp1 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 Eif4ebp1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous 4E-BP1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native Eif4ebp1 locus and enabling the study of 4E-BP1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of 4E-BP1 pathway restoration in tumor cells with silenced or reduced Eif4ebp1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.