Fig. 1From: CRISPR/Cas9: the Jedi against the dark empire of diseasesVarious CRISPR/Cas systems have different signature endonucleases. CRISPR/Cas has six types and is divided into two classes. The class I system contains type I, III and IV, while the class II system comprises of type II, V, and VI. The CRISPR/Cas9 system is a type II of the class II systemBack to article page