Application

Functional Genomics/Target Validation Creation of gene knockouts in cell lines Creation of knock-in cell lines with promoters, fusion tags or reporters integrated into endogenous genes

Components

1 vial containing 1ug of a plasmid expressing the forward strand guide sequence. 1 vial containing 1ug of a plasmid expressing the reverse strand guide sequence. 1 vial containing 1ug of a plasmid expressing Cas9-D10A.

Features and Benefits

Serves as an experimental control for the CRISPR editing workflow using Cas9-D10A Nickase. Allows for validation of your system with the CRSIPR/Cas9 system. A positive result in a miss-match detection assay will indicate validation of your system.

General description

Validated CRISPR site, which serves as an experimental control for the Cas9-D10A Nickase system. A three component positive control system consisting of a CMV-driven Cas9-D10A Nickase plasmid, a U6-driven guide RNA plasmid targeting the sense strand of the human EMX1 gene and a U6-driven guide RNA plasmid targeting the antisense strand of the human EMX1 gene.

Legal Information

CRISPR Use License AgreementLentiviral and WPRE License Agreements

Other Notes

Typical transfection concentrations used in literature are in the ranges of >= 1.0ug/UL and ﹤= 5uL of Cas9-D10A Nickase plasmids combined with >= 1.0ug/UL and ﹤= 5uL of U6-gRNA plasmids. (All dosages above assume 0.5 to 1 million cells nucleofected)

Physical form

Sigma U6-gRNA plasmid expressing a guide sequence to human EMX1 supplied at a concentration of 20ng/ul in 50ul. Sigma Cas9-D10A Nickase plasmid at a concentration of 20ng/ul in 50ul.

Preparation Note

Sigma CRISPR plasmid products are delivered as mini-prep aliquots, which may not be suitable for transfection into particular cell types. For best results, we advise maxi-prepping plasmids using endotoxin-free DNA purification kits prior to transfection.

Principle

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.