Tumour samples expressed 68% less LMTK2 mRNA than did non-malignant BPH samples (figure 3; relative expression levels were 1.10 [IQR 0.77] in BPH versus 0.35 [IQR 0.30] in prostate cancer; p = 2.4 × 10-7), after correction for the potential effect of genotype at rs6465657. Here, LMTK2 is linked to prostate cancer.