Fig. 5. Subunit composition and molecular interactions of the BLOC-1 complex. (A) The model depicts the known subunit structure of the BLOC-1 complex. (B) The name of each subunit is denoted by the initial letter of the protein name. The diagram describes the intrinsic interactions between subunits of the BLOC-1 complex. For details see (Di Pietro and Dell'Angelica, 2005). (C) The diagram represents a partial list of interactions (solid lines), functional relationships (dashed line), or potential relationships (double-headed arrow with question mark) relevant to vesicle generation, fusion, and the pathogenesis of schizophrenia. A detailed list of interactions is described in (Di Pietro and Dell'Angelica, 2005).