Cited by 27Cellular transport and secretionUbiquitin and proteasome pathwaysAutophagy in Disease and Therapy

Evolution and assembly of ESCRTs

Ghazi-Tabatabai, Sara, Obita, Takayuki, Pobbati, Ajaybabu V., Perisic, Olga, Samson, Rachel Y., Bell, Stephen D., Williams, Roger L.·2009·Biochemical Society Transactions

Abstract

The AAA (ATPase associated with various cellular activities) proteins participate in membrane trafficking, organelle biogenesis, DNA replication, intracellular locomotion, cytoskeletal remodelling, protein folding and proteolysis. The AAA Vps (vacuolar protein sorting) 4 is central to traffic to lysosomes, retroviral budding and mammalian cell division. It dissociates ESCRTs (endosomal sorting complexes required for transport) from endosomal membranes, enabling their recycling to the cytosol, and plays a role in fission of intraluminal vesicles within MVBs (multivesicular bodies). The mechanism of Vps4-catalysed disassembly of ESCRT networks is unknown; however, it requires interaction between Vps4 and ESCRT-III subunits. The 30 C-terminal residues of Vps2 and Vps46 (Did2) subunits are both necessary and sufficient for interaction with the Vps4 N-terminal MIT (microtubule-interacting and transport) domain, and the crystal structure of the Vps2 C-terminus in a complex with the Vps4 MIT domain shows that MIT helices α2 and α3 recognize a (D/E)XXLXXRLXXL(K/R) MIM (MIT-interacting motif). These Vps2–MIT interactions are essential for vacuolar sorting and for Vps4-catalysed disassembly of ESCRT-III networks in vitro. Electron microscopy of ESCRT-III filaments assembled in vitro has enabled us to identify surfaces of the Vps24 subunit that are critical for protein sorting in vivo. The ESCRT-III–Vps4 interaction predates the divergence of Archaea and Eukarya. The Crenarchaea have three classes of ESCRT-III-like subunits, and one of these subunits interacts with an archaeal Vps4-like protein in a manner closely related to the human Vps4–human ESCRT-III subunit Vps20 interaction. This archaeal Vps4–ESCRT-III interaction appears to have a fundamental role in cell division in the Crenarchaea.

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Crossref · 10.1042/bst0370151

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  • CHMP2B is a subunit of the endosomal sorting complex required for transport-III (ESCRT-III).

    “CHMP2B (charged multivesicular body protein 2B) is a subunit of the endosomal sorting complex required for transport-III (ESCRT-III) [262].”

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Authors
Ghazi-Tabatabai, S., Obita, T., Pobbati, A. V., Perisic, O., Samson, R. Y., Bell, S. D., & Williams, R. L.
Affiliations
  • MRC Laboratory of Molecular Biology (GB)
  • MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, U.K.
  • University of Oxford (GB)
Corresponding author
Obita, Takayuki
Venue
Biochemical Society Transactions
Published
2009-01-20
Volume
37
Issue
1
Pages
151-155
ISSN
  • 0300-5127 (ISSN-L)
  • 1470-8752
OpenAlex
W1965914003
Cited by
27
References
36
Citations by year
2026: 2 · 2021: 3 · 2019: 1 · 2016: 2 · 2015: 2 · 2013: 1 · 2012: 5
FWCI
2.36
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical Society Transactions (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust (083639/Z/07/Z)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
Keywords
ESCRT, ESCRT-III, MIT domain, protein-protein interaction, multivesicular bodies, membrane trafficking, crenarchaeon, cell division
MeSH terms
Amino Acid Sequence, Humans, Molecular Sequence Data, Protein Binding, Endosomes, Saccharomyces cerevisiae, Evolution, Molecular, Protein Transport, Saccharomyces cerevisiae Proteins, Multiprotein Complexes

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