Anisotropic ESCRT-III architecture governs helical membrane tube formation
نویسندگان
چکیده
منابع مشابه
Coordinated binding of Vps4 to ESCRT-III drives membrane neck constriction during MVB vesicle formation
Five endosomal sorting complexes required for transport (ESCRTs) mediate the degradation of ubiquitinated membrane proteins via multivesicular bodies (MVBs) in lysosomes. ESCRT-0, -I, and -II interact with cargo on endosomes. ESCRT-II also initiates the assembly of a ringlike ESCRT-III filament consisting of Vps20, Snf7, Vps24, and Vps2. The AAA-adenosine triphosphatase Vps4 disassembles and re...
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ESCRT-III proteins catalyze membrane fission during multi vesicular body biogenesis, budding of some enveloped viruses and cell division. We suggest and analyze a novel mechanism of membrane fission by the mammalian ESCRT-III subunits CHMP2 and CHMP3. We propose that the CHMP2-CHMP3 complexes self-assemble into hemi-spherical dome-like structures within the necks of the initial membrane buds ge...
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ESCRT-III is required for lipid membrane remodeling in many cellular processes, from abscission to viral budding and multi-vesicular body biogenesis. However, how ESCRT-III polymerization generates membrane curvature remains debated. Here, we show that Snf7, the main component of ESCRT-III, polymerizes into spirals at the surface of lipid bilayers. When covering the entire membrane surface, the...
متن کاملESCRT-II coordinates the assembly of ESCRT-III filaments for cargo sorting and MVB vesicle formation
As you will see from their comments the referees express interest in the role of Vps25 in activating Vps20 and the requirement of two Snf7 oligomers for cargo sorting and request some further experimental analysis to make the study suitable for publication in the EMBO Journal. All the referees would like to see some further evidence for Snf7 oligomerisation in determining vesicle size, referee ...
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2020
ISSN: 2041-1723
DOI: 10.1038/s41467-020-15327-4