SpCas9 mRNA expresses an optimized version of Streptococcus pyogenes protein. It can be used with a purified guideRNA sequence for genomic DNA target recognition and cleavage in the CRISPR-Cas genome editing system. Type II CRISPR-Cas system from the bacterium S. pyogenes has been adapted for genome engineering in eukaryotic systems, which requires two main components: the endoculease Cas9 and non-coding guide RNA (gRNA). The Cas9 protein can be programmed with gRNA, targeting a site-specific DNA double-strand break (DSB). Other sizes are available. Please inqury us for quote.