Gα t1 CRISPR Activation Plasmid (h): sc-401559-ACT
- Target species: human
- 20 µg of transfection-ready, purified plasmid DNA; Suitable for up to 20 transfections
- Gα t1 CRISPR Activation Plasmid (h) is a synergistic activation mediator (SAM) transcription activation system designed to specifically upregulate gene expression
- Gα t1 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 Gα t1 CRISPR Activation Plasmid (h) and Gα t1 CRISPR Activation Plasmid (h2) target distinct regulatory regions upstream of the GNAT1 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: Gα t1 Antibody (C-9): sc-518139
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Gα t1 CRISPR Activation Plasmid (h) | sc-401559-ACT | 20 µg | $397.00 |
GNAT1 encodes the heterotrimeric G protein alpha subunit Gαt1 (transducin alpha), a key signal transducer in rod photoreceptors that couples activated rhodopsin to effector enzymes in the phototransduction cascade. Upon light stimulation, Gαt1 promotes activation of phosphodiesterase to reduce cGMP levels, modulating cyclic nucleotide–gated channel activity and controlling membrane hyperpolarization. This pathway integrates GPCR signaling with second-messenger regulation to support visual sensitivity and adaptation in low-light conditions. Dysregulation or altered expression of phototransduction components, including GNAT1, is relevant to studies of inherited retinal dysfunction and mechanisms that perturb rod signaling homeostasis.
Gα t1 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous GNAT1 expression without altering the underlying DNA sequence.
Gα t1 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the GNAT1 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 GNAT1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous Gα t1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native GNAT1 locus and enabling the study of Gα t1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of Gα t1 pathway restoration in tumor cells with silenced or reduced GNAT1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.