Emx1 CRISPR Activation Plasmid (h): sc-402711-ACT

EMX1 encodes the homeobox transcription factor Emx1, a DNA-binding regulator that helps specify regional identity and neuronal lineage programs during human forebrain and cortical development. Emx1 influences gene networks controlling progenitor proliferation, neuronal differentiation, and migration, integrating with developmental signaling pathways such as Wnt, FGF, and Notch to shape neuroepithelial patterning. Dysregulated EMX1-associated transcriptional programs have been linked to altered neurodevelopmental trajectories, making EMX1 a useful locus for studying mechanisms of cortical circuit formation and cell fate specification. In biomedical research, EMX1 serves as a model transcription factor for interrogating enhancer–promoter control, chromatin state dynamics, and lineage-restricted gene expression in neural systems.

Emx1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous EMX1 expression without altering the underlying DNA sequence.

Emx1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the EMX1 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 EMX1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Emx1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native EMX1 locus and enabling the study of Emx1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Emx1 pathway restoration in tumor cells with silenced or reduced EMX1 expression.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.