For breast cancer, one SD decrease of FDPS expression was associated with 34% lower risk (OR: 0.66, 95% CI: 0.49–0.83, PSMR = 9.77 × 10−7) while 1 SD increase of NSUN4 expression was associated with 5% higher risk (OR: 1.05, 95% CI: 1.03–1.07, PSMR = 5.24 × 10−6). Here, NSUN4 is linked to breast cancer.