MT1X and obesity due to melanocortin 4 receptor deficiency: Details of several other genes on this list linked to longevity (MT1X), body size (CHRNB1, DPEP2), development (FZD5, CDK20), cancer (C2orf78, FZD5, DDX24, NCAM1, MT1X, XRCC1, CDK20), obesity and diabetes (DPEP2), and the immune system (NCAM1) are available in Table 2 and Wiki pages on OSF (Bukhman et al. 2021b).