Among the 15 significant genes, five candidate causal genes were prioritized mainly by cis genetic variants (i.e., cis variants of these genes showed significant association with schizophrenia and gene expression simultaneously), including ALMS1, GLT8D1, ZNF323, CSNK2B, and TBC1D15. These five genes therefore represent the most likely causal genes for schizophrenia. This evidence concerns the gene TBC1D15 and schizophrenia.