SLC68A1 and schizophrenia: Our TWAS analysis showed that rs2902544 was simultaneously associated with schizophrenia (P = 3.45 × 10–13) and TMEM180 expression (P = 2.88 × 10−10) in EAS (table 1), suggesting that genetic variation may confer schizophrenia risk by regulating TMEM180 mRNA expression.