The nine clusters were “metabolism of lipids,” “metabolism of protein,” “DNA replication,” “G2 or M cell cycle,” “hemostasis,” “metabolic disorder,” “Toll-like receptor (TLR) or G protein–coupled receptor (GPCR) signaling,” “receptor tyrosine kinase (RTK) signaling,” and “cytokine signaling” (shown in different colors in Fig. 3B). This evidence concerns the gene NTRK1 and metabolic disease.