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. 2021 Mar 26;12:612826. doi: 10.3389/fimmu.2021.612826

Figure 1.

Figure 1

Pro-tumorigenic effects of pks+ E. coli. Strains having the pathogenicity island pks can synthesize colibactin toxin having oncogenic potential. Colibactin damages colonocyte DNA by inducing double-stranded DNA breaks and single-base substitution, deletion, and insertion mutations, favoring accumulation of damage and increasing the risk of malignant cell transformation.