Cas9 Nuclease, S. pyogenes, is an RNA-guided endonuclease that catalyzes site-specific cleavage of double stranded DNA. The location of the break is within the target sequence 3 bases from the NGG PAM (Protospacer Adjacent Motif) (1). The PAM sequence, NGG, must follow the targeted region on the opposite strand of the DNA with respect to the region complementary sgRNA sequence.
Cas9 in vivo: Bacterial Adaptive Immunity
CRISPR loci in the bacterial genome are transcribed and processed into crRNA. Cas9 endonuclease complexed with a crRNA and separate tracrRNA cleaves foreign DNA containing a 20-nucleotide crRNA complementary sequence adjacent to the PAM sequence. (Figure not drawn to scale.)
Cas9 nuclease, S. pyogenes, complexed with an sgRNA
Cleavage occurs three nucleotides upstream of the PAM sequence (shown in red). sgRNAs are complimentary to the strand of DNA opposite of the PAM.
In vitro DNA cleavage using Cas9 Nuclease, S. pyogenes
Reactions were set up according to recommended conditions, and cleavage products were resolved on a 1% agarose TBE gel. Input DNA is PvuII-linearized pBR322 plasmid DNA.
Product Source
An E. coli strain that carries the cloned Cas9 gene from Streptococcus pyogenes
Reagents Supplied
The following reagents are supplied with this product:
If planning to use higher concentration Cas9 Nuclease, S. pyogenes (M0386T and M0386M) for in vitro digestion of DNA, the enzyme should be diluted to 1 µM using Diluent B (NEB #B8002S) prior to the reaction assembly.
The Product Summary Sheet, or Data Card, includes details for how to use the product, as well as details of its formulation and quality controls. The following file naming structure is used to name the majority of these document files: [Catalog Number]Datasheet-Lot[Lot Number]. For those product lots not listed below, please contact NEB at [email protected] or fill out the Technical Support Form for appropriate document.)
Haussmann IU, Ustaoglu P, Brauer U, Hemani Y, Dix TC, Soller M. (2018) Plasmid-based gap-repair recombineered transgenes reveal a central role for introns in mutually exclusive alternative splicing in Down Syndrome Cell Adhesion Molecule exon 4 Nucleic Acids Res; Dec 12, PubMedID: 30541104, DOI: 10.1093/nar/gky1254
Lee, NC., Larionov, V., Kouprina, N. (2015) Highly efficient CRISPR/Cas9-mediated TAR cloning of genes and chromosomal loci from complex genomes in yeast Nucleic Acids Res; 43(8), e55. PubMedID: 25690893
Pardee P, Green A A, Takahashi M K, Braff D, Lambert G, Lee J W, Ferrante T, Ma D, Donghia N, Fan M, Daringer N M, Bosch I, Dudley D M, O’Connor D H, Gehrke H, Collins J J (2016) . Rapid, Low-Cost Detection of Zika Virus Using Programmable Biomolecular Components Cell.; DOI: 10.1016/j.cell.2016.04.059
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The Specification sheet is a document that includes the storage temperature, shelf life and the specifications designated for the product. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]
The Certificate of Analysis (COA) is a signed document that includes the storage temperature, expiration date and quality controls for an individual lot. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]_[Lot Number]
The Product Summary Sheet, or Data Card, includes details for how to use the product, as well as details of its formulation and quality controls. The following file naming structure is used to name the majority of these document files: [Catalog Number]Datasheet-Lot[Lot Number]. For those product lots not listed below, please contact NEB at [email protected] or fill out the Technical Support Form for appropriate document.)
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