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CAS9RFPVP Sigma-Aldrich

Cas9-RFP Lenti Plasmid



recombinant   expressed in E. coli
packaging   vial of 50 μL
concentration   20 ng/μL in TE buffer; DNA (1μg of Plasmid DNA)
application(s)   CRISPR: suitable
reporter gene   RFP
selection   ampicillin
shipped in   dry ice
storage temp.   −20°C


General description

This product is a lentiviral plasmid that utilizes the EF1 alpha promoter to drive expression of Cas9 and RFP linked by a 2A peptide (EF1a-Cas9-2A-RFP) allowing for easy visualization of successful transfection or transduction. Use Sigma’s lentiviral Cas9 plasmid for generation of lentiviral particles and efficient production of stable cell lines expressing Cas9 for CRISPR based genome editing. Sigma’s Cas9-RFP lenti plasmid is one part of a two part CRISPR system with individual Cas9 and gRNA expression vectors. For easy fluorescence microscopy a MOI greater than 200 should be employed when packaged into lentiviral particles.

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Functional Genomics/Target Validation
• Creation of gene knockouts in multiple cell lines
•  Complete knockout of genes not amenable to RNAi
• Manufacture of Cas9-RFP expressing Lentiviral Particles

Features and Benefits

• Highly specific
• Highly active
• Ready to use purified plasmid DNA


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.

Legal Information

CRISPR Use License Agreement

Lentiviral, WPRE and Evrogen Fluorophore Licenses

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles

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