NLGN4X and schizophrenia: Although NRXN1 was not one of the 108 genes identified from the recent schizophrenia GWA study (Schizophrenia Working Group of the Psychiatric Genomics Consortium, 2014), it is of interest that this study did implicate NLGN4, encoding a neuroligin, which is a postsynaptic binding partner of neurexins.