Date published: 2026-7-8

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BORIS CRISPR Activation Plasmid (m): sc-437064-ACT

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Datasheets
  • Target species: mouse
  • 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
  • BORIS CRISPR Activation Plasmid (m) is a synergistic activation mediator (SAM) transcription activation system designed to specifically upregulate gene expression
  • BORIS CRISPR Activation Plasmid (m) consists of three plasmids at a 1:1:1 mass ratio: a plasmid encoding the deactivated Cas9 (dCas9) nuclease (D10A and N863A) fused to the transactivation domain VP64, and a blasticidin resistance gene; a plasmid encoding the MS2-p65-HSF1 fusion protein, and a hygromycin resistance gene; a plasmid encoding a target-specific 20 nt guide RNA fused to two MS2 RNA aptamers, and a puromycin resistance gene
  • The resulting SAM complex binds to a site-specific region approximately 200-250 nt upstream of the transcriptional start site and provides robust recruitment of transcription factors for highly efficient gene activation
  • gRNAs encoded by BORIS CRISPR Activation Plasmid (m) and BORIS CRISPR Activation Plasmid (m2) target distinct regulatory regions upstream of the Ctcfl transcriptional start site. One or both designs may be available
  • Following transfection, gene knockout efficiency can be assayed by WB, IF or IHC using antibody: BORIS Antibody (F-1): sc-377085
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    Ordering Information

    Product NameCatalog #UNITPriceQtyFAVORITES

    BORIS CRISPR Activation Plasmid (m)

    sc-437064-ACT
    20 µg
    $397.00

    BORIS CRISPR Activation Plasmid (m2)

    sc-437064-ACT-2
    20 µg
    $397.00

    Mouse Ctcfl encodes BORIS (Brother of the Regulator of Imprinted Sites), a testis-enriched paralog of CTCF that binds insulator-like DNA elements and participates in chromatin organization and transcriptional regulation. BORIS can influence epigenetic state by engaging DNA methylation–sensitive regulatory regions and modulating enhancer–promoter communication, thereby affecting gene expression programs linked to germ cell development and cellular identity. Aberrant BORIS expression has been associated with derepression of normally silenced loci, altered chromatin accessibility, and transcriptional rewiring observed in oncogenic contexts. These properties make Ctcfl a useful model for studying genome architecture, imprinting-related regulation, and epigenetic dysregulation mechanisms in mouse systems.

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

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

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