产品说明
一般描述
This product is an expression plasmid that utilizes the CMV promoter for strong transient expression of eSpCas9 and GFP linked by a 2A peptide (CMV-eSpCas9-2A-GFP) allowing for easy visualization of successful transfection. The eSpCas9 expression plasmid is one part of a two part CRISPR system with individual eSpCas9 and gRNA expression vectors.
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应用
Functional Genomics/Target Validation
特点和优势
原理
CRISPR/Cas systems are employed by bacteria and archaea as a defense against invading viruses and plasmids. Recently, the type II CRISPR/Cas system from the bacterium Streptococcus pyogenes has been engineered to function in eukaryotic systems using two molecular components: a single Cas9 protein and a non-coding guide RNA (gRNA). The Cas9 endonuclease can be programmed with a single gRNA, directing a DNA double-strand break (DSB) at a desired genomic location. Similar to DSBs induced by zinc finger nucleases (ZFNs), the cell then activates endogenous DNA repair processes, either non-homologous end joining (NHEJ) or homology-directed repair (HDR), to heal the targeted DSB. Newly engineered eSpCas9 enables the efficient targeted gene editing of established CRISPR systems with the benefit of reduced off-target effects. Point mutations in the chromosome-binding motif of SpCas9, as described by Slaymaker, et al., provide higher on-target fidelity without loss of cleavage efficiency.
法律信息
CRISPR Use License Agreement
Evrogen Fluorophore Licenses
产品性质
质量水平 | 200 |
重组 | expressed in E. coli |
包装 | vial of 50 μL |
浓度 | 20 ng/μL in TE buffer; DNA (1μg of plasmid DNA) |
运输 | dry ice |
储存温度 | −20℃ |
安全信息
储存分类代码 | 12 - Non Combustible Liquids |
WGK | WGK 2 |
闪点(F) | Not applicable |
闪点(C) | Not applicable |
Sigma-Aldrich