As shown in Additional file 2: Fig. S2, there was a high correlation (R2 from 0.815 to 0.979 in breast cancer tissues, and R2 from 0.927 to 0.995 in breast cancer cell lines) between stable RGs and SF1 + TRA2B + THRAP3 + RHOA + QRICH1. Here, SF1 is linked to breast cancer.