E2F2 and ovarian carcinoma: As demonstrated in the right two panel in Figure 4A, cotransfection with miR‐455‐5p or miR‐491‐5p mimic could significantly reduce the production of Gaussia luciferase in the two ovarian cancer cell lines governed by the wild‐type binding sites (E2F2‐wt) but not those governed by the scrambled ones (E2F2‐mut), while cotransfection with miRNA mimic negative control (miR‐NC) showed minimal effect.