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SpCas9 (D10A, H840A)-NLS

Recombinant full-length Streptococcus pyogenes SpCas9 (D10A, H840A)-NLS with a His tag expressed in E. coli. SpCas9 (D10A, H840A)-NLS contains a nuclear localization sequence for optimal activity.

CS09N-E333H

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$ 75

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Overview:

Cas9 is a multidomain nuclease from the bacterium Streptococcus pyogenes characteristic of type II CRISPR- Cas systems (1). Using single guide RNA (sgRNA), Cas9 is targeted to specific genomic loci where it generates a blunt ended double strand break (2). SpCas9 (D10A, H840A)-NLS is a catalytic mutant of Cas9 containing a nuclear localization sequence for optimal activity (3). Unlike wild type Cas9, SpCas9 (D10A, H840A)-NLS lacks all nuclease activity (3). SpCas9 (D10A, H840A)-NLS can be used for various genome editing applications.


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Formulation:

Recombinant protein stored 50mM sodium phosphate, pH 7.5, 300mM NaCl, 200mM imidazole, 1mM DTT, 10% glycerol.


References:

1. Nishimasu H, et.al. Crystal structure of Cas9 in complex with guide RNA and target DNA. 2014. Cell. 156(5):935-49.

2. Sapranauskas R et al. The Streptococcus thermophilus CRISPR/Cas system provides immunity in Escherichia coli. 2011.Nucleic Acids Res. 39(21):9275-82.

3. Jiang F, Doudna JA. 2017. CRISPR-Cas9 Structures and Mechanisms. Annu Rev Biophys.46:505-529.

4. Brezgin S, et. al. Dead Cas Systems: Types, Principles, and Applications. Int J Mol Sci. 2019 Nov 30;20(23):6041.




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