RPA 70 kDa subunit CRISPR Activation Plasmid (h): sc-401454-ACT
- Target species: human
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- RPA 70 kDa subunit CRISPR Activation Plasmid (h) is a synergistic activation mediator (SAM) transcription activation system designed to specifically upregulate gene expression
- RPA 70 kDa subunit CRISPR Activation Plasmid (h) 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 RPA 70 kDa subunit CRISPR Activation Plasmid (h) and RPA 70 kDa subunit CRISPR Activation Plasmid (h2) target distinct regulatory regions upstream of the RPA1 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: RPA 70 kDa subunit Antibody (H-7): sc-48425
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
RPA 70 kDa subunit CRISPR Activation Plasmid (h) | sc-401454-ACT | 20 µg | $397.00 | |||
RPA 70 kDa subunit CRISPR Activation Plasmid (h2) | sc-401454-ACT-2 | 20 µg | $397.00 |
RPA1 encodes the 70 kDa subunit of replication protein A, a high-affinity single-stranded DNA-binding factor that stabilizes exposed ssDNA during replication, recombination, and multiple DNA repair reactions. RPA1 coordinates recruitment and activity of key genome maintenance enzymes, supporting processes such as replication fork protection, nucleotide excision repair, and homologous recombination, and it interfaces with ATR-dependent DNA damage signaling during replication stress. By shaping checkpoint activation and repair pathway choice, RPA1 helps preserve genomic integrity, and altered RPA1 function or expression is frequently studied in the context of genome instability phenotypes observed across diverse disease models.
RPA 70 kDa subunit CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous RPA1 expression without altering the underlying DNA sequence.
RPA 70 kDa subunit CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the RPA1 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 RPA1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous RPA 70 kDa subunit expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native RPA1 locus and enabling the study of RPA 70 kDa subunit-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of RPA 70 kDa subunit pathway restoration in tumor cells with silenced or reduced RPA1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.