The CRISPR-Cas9 system is a kind of natural immune system that exists in bacteria. Whenever a virus invades, the system can edit foreign genomes to protect the immune functions of bacterial cells. Based on CRISPR-Cas9’s powerful genome editing capabilities, researchers have transformed the bacteria’s natural immune system into a gene editing tool that can be widely used in the laboratory. CRISPR-Cas9 is the third generation of gene editing tools following ZFN and TALEN.
Applications of CRISPR-Cas9