Recombinant Streptococcus pyogenes Cas9 (wt) protein expressed in an E. coli with a N-terminal nucleic localization signal (NLS).
Form:
Liquid
Preparation Method:
E. coli expression system
Purity:
≥ 95% by SDS-PAGE
Endotoxin Level:
< 0.1 eu/μg
Activity:
20 nM CRISPR/Cas9-C-NLS nuclease incubated for 1 hour at 37℃ result in 90% digestion of the substrate DNA as determined by agarose gel electrophoresis.
Recommend Usage:
CRISPR Genome editing The optimal working dilution should be determined by the end user.
Storage Buffer:
In 10 mM Tris, 300 mM NaCl, 0.1 mM EDTA, 1 mM DTT, 50% Glycerol PH 7.4
Storage Instruction:
Store at -20°C. Aliquot to avoid repeated freezing and thawing.
Electrophoresis DNA cleavage assay with Cas9-N-NLS nuclease. Input DNA is EcoRV-linearized pUC57 plasmid DNA. (1) DNA + gRNA + 50 ng Cas9 (2) DNA +gRNA +25 ng Cas9 (3) DNA +gRNA