SLX4 and breast cancer: Thirty-seven HRRGs had effects on the prognosis of BC patients, with some HRRGs having a significant positive correlation with prognoses, such as SLX4, RAD54L, RECQL4, and RECQ, and some HRRGs, including RAD51B, RAD50, and PD55B, were negatively correlated with prognosis (Fig. 2A).