Figure 5. Significant correlations between mRNA levels of 26S proteasome delta subunit, non-ATPase (PSMD) family members and recurrence-free survival curve (RFS) of patients diagnosed with breast cancer (BRCA). The two survival curves respectively illustrate survival outcomes (including survival percentages and survival times) of BRCA patients with high (red) or low (black) expression levels of PSMD family members. Increased mRNA levels of target genes resulted in poor prognoses, while increasing levels of PSMD9 and PSMD11 were associated with favorable outcomes (p<0.05 was considered statistically significant).