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-Structure paper
| タイトル | Distinct filament morphology and membrane tethering features of the dual FtsZ paralogs in Odinarchaeota. |
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| ジャーナル・号・ページ | EMBO J, Vol. 44, Issue 21, Page 5940-5964, Year 2025 |
| 掲載日 | 2025年8月8日 |
著者 | Jayanti Kumari / Akhilesh Uthaman / Sucharita Bose / Ananya Kundu / Vaibhav Sharma / Soumyajit Dutta / Anubhav Dhar / Srijita Roy / Ramanujam Srinivasan / Samay Pande / Kutti R Vinothkumar / Pananghat Gayathri / Saravanan Palani / ![]() |
| PubMed 要旨 | The Asgard phylum has emerged as a model to study eukaryogenesis because of their close relatedness with the eukaryotes. In this study, we use FtsZ proteins from a member of the class Odinarchaeia as ...The Asgard phylum has emerged as a model to study eukaryogenesis because of their close relatedness with the eukaryotes. In this study, we use FtsZ proteins from a member of the class Odinarchaeia as representatives to investigate the probable origin, evolution, and assembly of the FtsZ/tubulin protein superfamily in Asgard archaea. We performed a comparative analysis of the biochemical properties and cytoskeletal assembly of FtsZ1 and FtsZ2, the two FtsZ isoforms in the Odinarchaeota metagenome. Our electron microscopy analysis reveals that OdinFtsZ1 assembles into curved single protofilaments, while OdinFtsZ2 forms stacked spiral ring-like structures. Upon sequence analysis, we identified an N-terminal amphipathic helix in OdinFtsZ1, which mediates direct membrane tethering. In contrast, OdinFtsZ2 is recruited to the membrane by the anchor OdinSepF via OdinFtsZ2's C-terminal tail. Overall, we report the presence of two distant evolutionary paralogs of FtsZ in Odinarchaeota, with distinct filament assemblies and differing modes of membrane targeting. Our findings highlight the diversity of FtsZ proteins in the archaeal phylum Asgardarchaeota, providing valuable insights into the evolution and differentiation of tubulin-family proteins. |
リンク | EMBO J / PubMed:40781499 / PubMed Central |
| 手法 | EM (らせん対称) |
| 解像度 | 3.6 Å |
| 構造データ | EMDB-64825, PDB-9v7v: |
| 化合物 | ![]() ChemComp-G2P: |
| 由来 |
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キーワード | CELL CYCLE / Cell division Protein |
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candidatus odinarchaeota (古細菌)
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