The ESCRT (Endosomal Sorting Complexes Required for Transport) machinery is made up of five complexes, ESCRT-0 to -III and the Vps4-Vta1 ATPase complex, which are sequentially recruited to the cytosolic face of the membrane, and mediate cargo recognition, membrane budding and fission. ESCRT-III is a dynamic complex, that assembles on endosomes. The components of the complex are less well defined, but it has four core subunits. It assembles into a filament around the neck of the budding vesicle. ESCRT-III mediates the recruitment of deubiquitinases and, together with the Vps4-Vta1 complex, which it recruits, mediates membrane scission. (Adapted from PMID:22361144 and FBrf0209668).

The ESCRT-III gene group lists the core and accessory proteins of ESCRT-III. In D.mel two there are two genes homologous to yeast Did4 (Vps2), Vps2 and CHMP2B.