NRXN1 and schizophrenia: Recently, rare exonic micro-deletions and other mutations in NRXN1 have been linked with schizophrenia (Walsh et al., 2008, Rees et al., 2014) and autism (Szatmari et al., 2007, Iossifov et al., 2012, De Rubeis et al., 2014); and early GWA studies provided some evidence for common schizophrenia risk alleles existing in this gene (O’Dushlaine et al., 2011).