CAS9PROT
Cas9 Protein
from Streptococcus pyogenes, recombinant, expressed in E. coli, 1X NLS
Synonym(s):
Cas9, SpCas9, SpyCas9
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About This Item
UNSPSC Code:
12352202
NACRES:
NA.51
Recommended Products
recombinant
expressed in E. coli
Quality Level
Assay
≥95% (SDS-PAGE)
form
lyophilized powder
packaging
pkg of 1 kit (3 components)
application(s)
CRISPR
shipped in
wet ice
storage temp.
−20°C
General description
CAS9, also known as cas5 and csn1, is the signature gene of the type II clustered regularly interspaced short palindromic repeats (CRISPR)-RuvC (RNase H-like fold) cas system. CAS9 contains 1388 amino acids. This protein is predicted to contain a RuvC/ ribonuclease (RNase) H domain involved in crRNA maturation and McrA/HNH signature domain involved in the DNA degradation step.
Recombinant Cas9 protein from Streptococcus pyogenes (~160 KD) is a ready-to-use reagent for genome engineering experiments. When combined with target-specific guide RNAs, wild type Streptococcus pyogenes Cas9 protein will act as a targeted nuclease suitable for transfection of cell cultures and for the accelerated development of genetically-modified animals via one-cell embryo injection.
Application
Functional Genomics/Target Validation/Genome Editing
Biochem/physiol Actions
CAS9 plays a vital role in plasmid DNA interference. It is the only cas protein needed to deliver resistance against foreign DNA. CAS9 stimulates both RNA-guided genome editing and gene regulation in various organisms, but it can facilitate only one activity at a time within any given cell.
Features and Benefits
- Highly specific
- Highly active
- Ready-to-inject/transfect
Packaging
pkg of 50 μg (≥ 300 pmol)
pkg of 250 μg (≥ 1500 pmol)
pkg of 250 μg (≥ 1500 pmol)
Components
Each kit consists of:
- one vial of Cas9 recombinant protein
- one vial containing 1 mL of 1× dilution buffer
- one vial containing 1 mL of nuclease-free water with glycerol
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 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.
Reconstitution
Lyophilized S. pyogenes Cas9 protein should be resuspended in the Reconstitution solution provided to desired concentration. Gently tap tube to completely dissolve lyophilized powder, incubate for 10 minutes on ice, and spin tube to bring material to bottom of tube.
Other Notes
Use our CRISPR Selection Tool to order gRNA
Check out our other MISSION® Cas9 Proteins at SigmaAldrich.com/CRISPRproteins
Check out our other MISSION® Cas9 Proteins at SigmaAldrich.com/CRISPRproteins
Legal Information
MISSION is a registered trademark of Merck KGaA, Darmstadt, Germany
Kit Components Only
Product No.
Description
- Cas9-NLS from Streptococcus pyogenes, expressed in Escherichia coli
- Dilution buffer for Cas9 proteins
- Reconstitution solution for Cas9 proteins
Storage Class Code
10 - Combustible liquids
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Protocols
Sigma-Aldrich® sgRNA, crRNA and tracrRNA come HPLC purified as standard with our performance guarantee—even for custom designs.
The CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) system was discovered in bacteria, where it functions as an adaptive immune system against invading viral and plasmid DNA.
Combine guaranteed sgRNAs with our comprehensive range of CRISPR products and tools, including Cas9 and delivery reagents, for efficient genome modification with higher specificity.
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