No pathogenic rearrangement within the DISC 1 gene in psychosis.

A translocation disrupting the DISC 1 gene segregates with schizophrenia and related psychiatric disorders in a large Scottish family. Mutation screening of this gene by routine PCR-based methods has remained largely negative. We sought to detect rearrangements affecting DISC 1 in 347 individuals meeting the DSM3R criteria for schizophrenia or schizoaffective disorder, 70 subjects with bipolar disorder and 377 psychiatrically healthy controls, but failed to detect any pathological rearrangement.