Fig. 1From: Review of applications of CRISPR-Cas9 gene-editing technology in cancer researchGenomic structure of the bacterial CRISPR-Cas9 system: CRISPR is a special repetitive sequence-spacing array of clustered bacterial genomes made up of spacing sequences from phage DNA and recombination sequences from the host bacteria genome adjacent to the Cas gene. CRISPR mainly includes tracrRNA genes, Cas genes, leaders, repeat sequences and interval sequencesBack to article page