CACNA1D and cancer: So, the Cacna1d, Kcnj12 Tgfb2, Cav1, Mecom, Kitlg, and Bmp2 genes had associations with any of the five pathways of PC1 (glutamatergic synapse, cholinergic synapse, proteoglycans in cancer, pathways in cancer, and MAPK signaling pathway).