BMPR1B and colorectal carcinoma: Moreover, there was negative co-expression of PCTK1 with BMPR1B in CRC patients using the Timer 2.0 dataset (rho = −0.24, p = 1.99 × 10−7) and cBioPortal (Spearman’s correlation coefficient −0.32, p = 2.97 × 10−10) (Figure 6G,H).