FOSB and schizophrenia: These findings, which involve genes/proteins related to AP-1 transcription factor family gene regulation, cytoskeleton, histone binding activity, the intracellular trafficking of receptors and endocytosis of a variety of macromolecules, and nuclear localisation signal, are particularly significant as they shed light on the molecular underpinnings of the clinical efficacy of amisulpride and the pathogenesis of schizophrenia.