KCNJ11 and type 2 diabetes mellitus: KCNJ11 polymorphisms rs5219 (E23K), rs1800467 (L270V), rs5215 (V337I), rs41282930 (S385C) are four common missense polymorphisms that have been observed in KCNJ11 gene and has shown to influence the risk of T2D in multiple studies including recent large scale genetic studies [2]–[4], [7].