Supporting this hypothesis, PROT mutations and Slc6A7 expression changes have been related to susceptibility to autism as well as schizophrenia (Hager et al., 2005; Voineagu et al., 2011; Hedges et al., 2012; Wen et al., 2014), and microdeletions at the 5q32 locus containing the Slc6a7 gene have been associated with intellectual disability (Vincent et al., 2014). The gene discussed is SLC6A7; the disease is Intellectual disability.