NFE2L2 and breast cancer: The prognostic merits of FKBP4 and NRF2 in luminal A and basal-like subtype of BC patients were further analyzed by using bc-GenExMiner v4.7, the Kaplan–Meier curve showed that increased levels of FKBP4 and decreased levels of NRF2 were strongly correlated with worse survival both in luminal A and basal-like subtype of BC patients (Figure S4).