FEATURES

FAMILY

DESCRIPTION

Also known as VPS24_YEAST, VPS24, DID3. Class E VPS protein implicated in concentration and sorting of cargo proteins of the multivesicular body (MVB) for incorporation into intralumenal vesicles. The lumenal sequestrated membrane proteins will be targeted into the vacuole after fusion of the endosome with the vacuole. Acts a component of the ESCRT-III complex, which appears to be critical for late steps in MVB sorting, such as membrane invagination and final cargo sorting and recruitment oflate-acting components of the sorting machinery. The MVB pathway requires the sequential function of ESCRT-O, -I, -II and -III complex assemblies. The DID4/VPS2-VPS24 subcomplex is required for the VPS4-dependent dissociation of ESCRT-III. Core component of the ESCRT-III complex (endosomal sorting required for transport complex III). ESCRT-III appears to be sequentially assembled as a flat lattice on the endosome membrane and forms a transient 450 kDa complex that contains DID4, oligomerized SNF7, VPS20 and VPS24. SNF7 oligomerization into a membrane-associated filament is nucleated by association of SNF7 with VPS20; the process is terminated through association of VPS24, possibly by capping the SNF7 filament. VPS24 subsequently associates with DID4/VPS2. Interacts with the VPS4. Interacts with DID2.

EXTERNAL LINKS

VPS24

Vacuolar protein-sorting-associated protein 24

VPS24

Molecular Synopsis