SLC6A11 and type 2 diabetes mellitus: Notable examples include the discovery of the T2D associated genes KCNQ1 in East Asians (Yasuda et al., 2008; Unoki et al., 2008), SGCG in Punjabi Sikhs (Saxena et al., 2013) and of SLC6A11 in Mexicans (SIGMA Type 2 Diabetes Consortium et al., 2014).