Streptococcus pyogenes CRISPR associated protein 9 (Cas9), also known as SpCas9, GenBank Accession No. NC_002737.2:854751-858857, a.a. 2-1368(end) with N-terminal HIs-tag, expressed in an E. coli cell expression system. MW = 160 kDa.
Immunogen Region
2-1368(end)
Tag
N-terminal His-tag
Formulation
20 mM HEPES, pH 7.5, 500 mM KCl, 20% Glycerol, 3 mM DTT.
Species
S. pyogenes
Application
Cas9 invitro cleavage assays to identify sgRNA with the highest cutting efficiency.
Notes
The Cas9 nuclease was incubated with sgRNA at 37°C for 10 minutes to form a functional RNP complex. A purified PCR product was then added at 37°C for 60 minutes, before Cas9 activity was visualized by agarose gel.
Avoid freeze/thaw cycles.
GenBank
NC_002737.2:854751-858857
Mw(kda)
160 kDa
Synonyms
SpCas9
Uniprot
Q99ZW2
Shipping Temperature
-80°C (dry ice)
Format
Aqueous buffer solution
Storage
At least 6 months at -80°C.
Reference
1. Liang, X. et al., J Biotechnol. 2017; 241:136-146 2. Kim, S., et al., Genome Res. 2014; 24(6): 1012-1019