Recent GWAS studies have highlighted the significant involvement of SNPs located in GRIA3 and GRIN2A in the functioning of the glutamatergic system (Schizophrenia Working Group of the Psychiatric Genomics Consortium*, 2014; Singh et al., 2022; Trubetskoy et al., 2022). The gene discussed is GRIN2A; the disease is schizophrenia.