Genetic association analyses have consistently suggested an association between SNPs in the mGlu3R gene (GRM3) and schizophrenia (Fujii et al., 2003; Egan et al., 2004; Chen et al., 2005; Sartorius et al., 2008; Cherlyn et al., 2010) including a recent multi-stage schizophrenia genome-wide association study (Schizophrenia Working Group of the Psychiatric Genomics Consortium, 2014). The gene discussed is GRM3; the disease is schizophrenia.