To explore if expression of ZNF501, ZNF502, B3GALTL were associated with schizophrenia and bipolar disorder, we further examined TWAS results of these three genes (i.e. ZNF501, ZNF502 and B3GALTL) in PsychENCODE24 (Supplementary Table 6). This evidence concerns the gene B3GLCT and schizophrenia.