DRAM1 and type 2 diabetes mellitus: DRAM1 mainly involves butanoate metabolism, drug metabolism – other enzymes, neuroactive ligand receptor interaction, olfactory transduction, glycine serine and threonine metabolism, glycosphingolipid biosynthesis lacto and neolacto series, hedgehog signaling pathway, basal cell carcinoma, maturity onset diabetes of the young (Figure 6b).