This analysis identified 23 sub-pathways, including those in endocytosis, Huntington’s disease, MAPK signaling pathway, chronic myeloid leukemia, adherens junction, hypertrophic cardiomyopathy (HCM), and TGF-β signaling pathway, that showed abundant genes in sub-pathways (Table 4 and Table S2). Here, TGFB1 is linked to Huntington disease.