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Open data
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Basic information
| Entry | Database: PDB / ID: 8owe | ||||||||||||
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| Title | Lipidic amyloid-beta(1-40) fibril - polymorph L2-L3 | ||||||||||||
Components | Amyloid-beta A4 protein | ||||||||||||
Keywords | PROTEIN FIBRIL / amyloid-beta / fibril / lipids | ||||||||||||
| Function / homology | Function and homology informationGolgi-associated vesicle / clathrin-coated pit / serine-type endopeptidase inhibitor activity / endocytosis / heparin binding / growth cone / perikaryon / early endosome / cell surface / endoplasmic reticulum ...Golgi-associated vesicle / clathrin-coated pit / serine-type endopeptidase inhibitor activity / endocytosis / heparin binding / growth cone / perikaryon / early endosome / cell surface / endoplasmic reticulum / extracellular region / metal ion binding / nucleus / plasma membrane Similarity search - Function | ||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||
| Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3.75 Å | ||||||||||||
Authors | Frieg, B. / Han, M. / Giller, K. / Dienemann, C. / Riedel, D. / Becker, S. / Andreas, L.B. / Griesinger, C. / Schroeder, G.F. | ||||||||||||
| Funding support | Germany, 3items
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Citation | Journal: Nat Commun / Year: 2024Title: Cryo-EM structures of lipidic fibrils of amyloid-β (1-40). Authors: Benedikt Frieg / Mookyoung Han / Karin Giller / Christian Dienemann / Dietmar Riedel / Stefan Becker / Loren B Andreas / Christian Griesinger / Gunnar F Schröder / ![]() Abstract: Alzheimer's disease (AD) is a progressive and incurable neurodegenerative disease characterized by the extracellular deposition of amyloid plaques. Investigation into the composition of these plaques ...Alzheimer's disease (AD) is a progressive and incurable neurodegenerative disease characterized by the extracellular deposition of amyloid plaques. Investigation into the composition of these plaques revealed a high amount of amyloid-β (Aβ) fibrils and a high concentration of lipids, suggesting that fibril-lipid interactions may also be relevant for the pathogenesis of AD. Therefore, we grew Aβ40 fibrils in the presence of lipid vesicles and determined their structure by cryo-electron microscopy (cryo-EM) to high resolution. The fold of the major polymorph is similar to the structure of brain-seeded fibrils reported previously. The majority of the lipids are bound to the fibrils, as we show by cryo-EM and NMR spectroscopy. This apparent lipid extraction from vesicles observed here in vitro provides structural insights into potentially disease-relevant fibril-lipid interactions. | ||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8owe.cif.gz | 75.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8owe.ent.gz | 56.1 KB | Display | PDB format |
| PDBx/mmJSON format | 8owe.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8owe_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
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| Full document | 8owe_full_validation.pdf.gz | 1.2 MB | Display | |
| Data in XML | 8owe_validation.xml.gz | 23.9 KB | Display | |
| Data in CIF | 8owe_validation.cif.gz | 36.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ow/8owe ftp://data.pdbj.org/pub/pdb/validation_reports/ow/8owe | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 17235MC ![]() 8ovkC ![]() 8ovmC ![]() 8owdC ![]() 8owjC ![]() 8owkC C: citing same article ( M: map data used to model this data |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments:
NCS oper:
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Components
| #1: Protein/peptide | Mass: 4335.852 Da / Num. of mol.: 10 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: ![]() |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: FILAMENT / 3D reconstruction method: helical reconstruction |
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Sample preparation
| Component | Name: The L2-L3 amyloid-beta(1-40) fibril in complex with lipids Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 6.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 500 nm |
| Image recording | Electron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
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| CTF correction | Type: NONE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helical symmerty | Angular rotation/subunit: -1.69 ° / Axial rise/subunit: 4.65 Å / Axial symmetry: C1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.75 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 13034 / Symmetry type: HELICAL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 67.72 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Refine LS restraints NCS |
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About Yorodumi




Homo sapiens (human)
Germany, 3items
Citation










PDBj




FIELD EMISSION GUN