The sorting of transmembrane proteins (e.g., cell surface receptors) into the multivesicular body (MVB) pathway to the lysosomal/vacuolar lumen requires the function of the ESCRT protein complexes. The soluble coiled-coil-containing proteins Vps2, Vps20, Vps24, and Snf7 are recruited from the cytoplasm to endosomal membranes where they oligomerize into a protein complex, ESCRT-III. ESCRT-III contains two functionally distinct subcomplexes. The Vps20-Snf7 subcomplex binds to the endosomal membrane, in part via the myristoyl group of Vps20. The Vps2-Vps24 subcomplex binds to the Vps20-Snf7 complex and thereby serves to recruit additional cofactors to this site of protein sorting. We provide evidence for a role for ESCRT-III in sorting and/or concentration of MVB cargoes.
Escrt-III: an endosome-associated heterooligomeric protein complex required for mvb sorting.
M. Babst,D. Katzmann,Eden J Estepa-Sabal,T. Meerloo,S. Emr
Published 2002 in Developmental Cell
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- Publication year
2002
- Venue
Developmental Cell
- Publication date
2002-08-01
- Fields of study
Biology, Medicine
- Identifiers
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- Source metadata
Semantic Scholar, PubMed
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