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-Structure paper
| タイトル | Asgard archaea reveal the conserved principles of ESCRT-III membrane remodeling. |
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| ジャーナル・号・ページ | Sci Adv, Vol. 11, Issue 6, Page eads5255, Year 2025 |
| 掲載日 | 2025年2月7日 |
著者 | Diorge P Souza / Javier Espadas / Sami Chaaban / Edmund R R Moody / Tomoyuki Hatano / Mohan Balasubramanian / Tom A Williams / Aurélien Roux / Buzz Baum / ![]() |
| PubMed 要旨 | ESCRT-III proteins assemble into composite polymers that undergo stepwise changes in composition and structure to deform membranes across the tree of life. Here, using a phylogenetic analysis, we ...ESCRT-III proteins assemble into composite polymers that undergo stepwise changes in composition and structure to deform membranes across the tree of life. Here, using a phylogenetic analysis, we demonstrate that the two endosomal sorting complex required for transport III (ESCRT-III) proteins present in eukaryote's closest Asgard archaeal relatives are evolutionarily related to the B- and A-type eukaryotic paralogs that initiate and execute membrane remodeling, respectively. We show that Asgard ESCRT-IIIB assembles into parallel arrays on planar membranes to initiate membrane deformation, from where it recruits ESCRT-IIIA to generate composite polymers. Last, we show that Asgard ESCRT-IIIA is able to remodel membranes into tubes as a likely prelude to scission. Together, these data reveal a set of conserved principles governing ESCRT-III-dependent membrane remodeling that first emerged in a two-component ESCRT-III system in archaea. |
リンク | Sci Adv / PubMed:39919172 / PubMed Central |
| 手法 | EM (らせん対称) |
| 解像度 | 2.91 - 6.5 Å |
| 構造データ | EMDB-50748, PDB-9ftl: EMDB-50749, PDB-9ftm: |
| 由来 |
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キーワード | MEMBRANE PROTEIN / ESCRT-III / filament / membrane binding protein / membrane remodelling / Asgard archaea / membrane remodeling |
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candidatus heimdallarchaeota archaeon (古細菌)
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