A splice variant within GRIK2 6:102337505, c.1525–10 C > T (p = 4.43 × 10−8; OR = 42.26, CI 2.53–704) and a missense variant within GRIK3, R865G, (p = 6.8 × 10−6; OR = 73, CI 4–1226) showed a significant nominal association with risk for schizophrenia (Table 1). Here, GRIK2 is linked to schizophrenia.