RAD51 and ovarian carcinoma: In contrast, whereas we observed a 2‐fold increase in RAD51 nuclear intensity as well as formation of nuclear foci in the HRDlow USZ‐21_LG1, neither formation of RAD51 nuclear foci nor increased RAD51 nuclear intensity were observed in the MFS and ovarian carcinoma cell models (Fig 6B and D; Appendix Fig S1B).