A growing body of evidence implicates several calcium and potassium channels in the susceptibility of schizophrenia, such as CACNA1C (Cav1.2 α subunit), KCNN3 (SK3), KCNH3 (Ether-A-Go-Go), and KCNJ3 (Kir3.1) (Smolin et al., 2012; Imbrici et al., 2013). Here, KCNH3 is linked to schizophrenia.