CRISPR-gRNA Design

Gene editing has great therapeutic impact, being of interest for many scientists worldwide. Clustered regularly interspaced short palindromic repeats (CRISPR) technology has been adapted for gene editing to serve as an efficient, rapid, and cost-effective tool. To fulfill CRISPR experiment’s goals, two components are important: an endonuclease and a gRNA. The most commonly used endonucleases are Cpf1 and Cas9 and are described in depth in this chapter. The gRNA targets the genome site to be edited, giving great importance to its design to obtain increased efficiency and decreased off-target events. In this chapter, we describe different tools to design suitable gRNAs for a variety of experimental purposes.