Variations associated with T1D susceptibility pointed to genes related to glycoprotein oligosaccharide biosynthesis, phospholipid binding, pancreatic adenocarcinoma, systolic blood pressure, and fasting insulin metabolism, among others that highlight MGAT5 (PFDR = 1.64 × 10−22), RUNX1 (PFDR = 1.8 × 10−12), PSD3 (PFDR = 8.1 × 10−12), and HLA-DBP2 (PFDR = 2.18 × 10−9). The gene discussed is PSD3; the disease is type 1 diabetes mellitus.