Among these candidate genes, dystrobrevin-binding protein 1 gene (DTNBP1) located on chromosome 6q22.3 has been associated with schizophrenia in diverse populations (Bray et al., 2005; Tochigi et al., 2006; Tosato et al., 2007; Vilella et al., 2008). Here, DTNBP1 is linked to schizophrenia.