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Structures, Functions, and Dynamics of ESCRT-III/Vps4 Membrane Remodeling and Fission Complexes

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McCullough, John, Frost, Adam, Sundquist, Wesley I.·2018·Annual Review of Cell and Developmental Biology

Abstract

The endosomal sorting complexes required for transport (ESCRT) pathway mediates cellular membrane remodeling and fission reactions. The pathway comprises five core complexes: ALIX, ESCRT-I, ESCRT-II, ESCRT-III, and Vps4. These soluble complexes are typically recruited to target membranes by site-specific adaptors that bind one or both of the early-acting ESCRT factors: ALIX and ESCRT-I/ESCRT-II. These factors, in turn, nucleate assembly of ESCRT-III subunits into membrane-bound filaments that recruit the AAA ATPase Vps4. Together, ESCRT-III filaments and Vps4 remodel and sever membranes. Here, we review recent advances in our understanding of the structures, activities, and mechanisms of the ESCRT-III and Vps4 machinery, including the first high-resolution structures of ESCRT-III filaments, the assembled Vps4 enzyme in complex with an ESCRT-III substrate, the discovery that ESCRT-III/Vps4 complexes can promote both inside-out and outside-in membrane fission reactions, and emerging mechanistic models for ESCRT-mediated membrane fission.

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Metadata

Authors
McCullough, J., Frost, A., & Sundquist, W. I.
Venue
Annual Review of Cell and Developmental Biology
Published
2018-10-06
Volume
34
Issue
1
Pages
85-109
ISSN
  • 1081-0706 (ISSN-L)
  • 1530-8995
OpenAlex
W2885642918
Cited by
276
References
6
FWCI
2.61
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Structures, Functions, and Dynamics of ESCRT-III/Vps4 Membrane Remodeling and Fission Complexes. https://app.cochat.ai/papers/10.1146/annurev-cellbio-100616-060600
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McCullough, J., Frost, A., & Sundquist, W. I. (2018). Structures, Functions, and Dynamics of ESCRT-III/Vps4 Membrane Remodeling and Fission Complexes. Annual Review of Cell and Developmental Biology. https://doi.org/10.1146/annurev-cellbio-100616-060600

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