From: Genome editing in cotton: challenges and opportunities
Characteristics | Type I | Type II | Type III | Type IV | Type V | Type VI | References |
---|---|---|---|---|---|---|---|
Effector complex | Multisubunit (Class 1) | Single unit (Class 2) | Multisubunit (Class 1) | Multisubunit (Class 1) | Single unit (Class 2) | Single unit (Class 2) | Zhuo et al. (2021) |
Signature Protein | Cas3 | Cas9 | Cas10 | Csf1 | Cas12 | Cas13 | Wada et al. (2022) |
Target molecule | DNA | DNA | RNA/DNA | DNA | DNA | RNA | Niu et al. (2021) |
Details | Cleaves ssDNA strands | Originates blunt DSB | Binds to nascent RNA molecules | Most unknown CRISPR system | Originates staggered DSB | RNA-guided RNase | Gong et al. (2021) |