Fig. 3

Cytotoxicity effects of E. coli KUB-36 metabolites on various cancer cells. Data are plotted as average values of IC50 ± standard error. Different lowercase (a-b) letters indicate (p < 0.05) significant difference between mean scores of each incubation time in the column. Different uppercase (A–C) letters indicate different (p < 0.05) between mean scores of each cancer cell type