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-Structure paper
| タイトル | CryoEM-enabled visual proteomics reveals de novo structures of oligomeric protein complexes. |
|---|---|
| ジャーナル・号・ページ | Structure, Vol. 33, Issue 9, Page 1484-11497.e5, Year 2025 |
| 掲載日 | 2025年9月4日 |
著者 | Yuanbo Shen / Ailiena O Maggiolo / Tianzheng Zhang / Rebeccah A Warmack / ![]() |
| PubMed 要旨 | Single particle cryoelectron microscopy (cryoEM) and cryoelectron tomography (cryoET) are powerful methods for unveiling unique and functionally relevant structural states. Aided by mass spectrometry ...Single particle cryoelectron microscopy (cryoEM) and cryoelectron tomography (cryoET) are powerful methods for unveiling unique and functionally relevant structural states. Aided by mass spectrometry and machine learning, they promise to facilitate the visual exploration of proteomes. Leveraging visual proteomics, we interrogate structures isolated from a complex cellular milieu by cryoEM to identify and classify molecular structures and complexes de novo. By comparing three automated model building programs, CryoID, DeepTracer, and ModelAngelo, we determine the identity of six distinct oligomeric protein complexes from partially purified extracts of the nitrogen-fixing bacterium Azotobacter vinelandii using both anaerobic and aerobic cryoEM, including two original oligomeric structures. Overall, by allowing the study of near-native oligomeric protein states, cryoEM-enabled visual proteomics reveals unique structures that correspond to relevant species observed in situ. |
リンク | Structure / PubMed:40664216 / PubMed Central |
| 手法 | EM (らせん対称) / EM (単粒子) |
| 解像度 | 1.85 - 3.7 Å |
| 構造データ | EMDB-48906, PDB-9n4v: EMDB-48907, PDB-9n4w: EMDB-48914, PDB-9n4x: EMDB-48915, PDB-9n4y: EMDB-48918, PDB-9n59: EMDB-48919, PDB-9n5a: EMDB-49753, PDB-9nsv: |
| 化合物 | ![]() ChemComp-HOH: ![]() ChemComp-FAD: ![]() ChemComp-HEM: ![]() ChemComp-ICS: ![]() ChemComp-HCA: ![]() ChemComp-CLF: ![]() ChemComp-FE: |
| 由来 |
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キーワード | TRANSPORT PROTEIN / secretion system / ISOMERASE / Glycolysis / decamer / LIGASE / nitrogen metabolism / FLAVOPROTEIN / transhydrogenase / STRUCTURAL PROTEIN / Flagellum / METAL BINDING PROTEIN / Metal storage / OXIDOREDUCTASE / Metalloprotein |
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azotobacter vinelandii (窒素固定)
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