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Yorodumi- PDB-9fh4: Cryo-EM Structure of Amyloid-beta Fibrils Carrying the Uppsala Ab... -
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Basic information
| Entry | Database: PDB / ID: 9fh4 | ||||||||||||||||||||||||
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| Title | Cryo-EM Structure of Amyloid-beta Fibrils Carrying the Uppsala AbetaUpp(1-42)delta(19-24) Mutation - Polymorph 3 | ||||||||||||||||||||||||
Components | Amyloid-beta precursor protein | ||||||||||||||||||||||||
Keywords | PROTEIN FIBRIL / Amyloid Fibril | ||||||||||||||||||||||||
| Function / homology | Function and homology informationamyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / collateral sprouting in absence of injury / growth cone filopodium / microglia development / hippocampal neuron apoptotic process / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of Wnt signaling pathway / axo-dendritic transport ...amyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / collateral sprouting in absence of injury / growth cone filopodium / microglia development / hippocampal neuron apoptotic process / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of Wnt signaling pathway / axo-dendritic transport / axon midline choice point recognition / regulation of synapse structure or activity / astrocyte activation involved in immune response / NMDA selective glutamate receptor signaling pathway / regulation of spontaneous synaptic transmission / mating behavior / growth factor receptor binding / peptidase activator activity / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / positive regulation of amyloid fibril formation / Golgi-associated vesicle / PTB domain binding / astrocyte projection / Lysosome Vesicle Biogenesis / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / neuron remodeling / nuclear envelope lumen / dendrite development / regulation of multicellular organism growth / TRAF6 mediated NF-kB activation / positive regulation of protein metabolic process / signaling receptor activator activity / negative regulation of long-term synaptic potentiation / transition metal ion binding / Advanced glycosylation endproduct receptor signaling / The NLRP3 inflammasome / modulation of excitatory postsynaptic potential / main axon / intracellular copper ion homeostasis / ECM proteoglycans / response to insulin-like growth factor stimulus / positive regulation of T cell migration / regulation of presynapse assembly / Notch signaling pathway / neuronal dense core vesicle / swimming behavior / Purinergic signaling in leishmaniasis infection / positive regulation of mitotic cell cycle / adult locomotory behavior / cellular response to manganese ion / positive regulation of chemokine production / extracellular matrix organization / positive regulation of calcium-mediated signaling / axonogenesis / neuron projection maintenance / clathrin-coated pit / Mitochondrial protein degradation / ionotropic glutamate receptor signaling pathway / astrocyte activation / platelet alpha granule lumen / response to interleukin-1 / regulation of neuron apoptotic process / positive regulation of glycolytic process / cellular response to cAMP / cellular response to copper ion / endosome lumen / trans-Golgi network membrane / positive regulation of interleukin-1 beta production / learning / protein serine/threonine kinase binding / dendritic shaft / positive regulation of long-term synaptic potentiation / central nervous system development / Post-translational protein phosphorylation / serine-type endopeptidase inhibitor activity / regulation of long-term neuronal synaptic plasticity / locomotory behavior / microglial cell activation / cellular response to nerve growth factor stimulus / visual learning / positive regulation of non-canonical NF-kappaB signal transduction / TAK1-dependent IKK and NF-kappa-B activation / synapse organization / positive regulation of JNK cascade / recycling endosome / response to lead ion / positive regulation of interleukin-6 production / Golgi lumen / cognition / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / cellular response to amyloid-beta / neuron projection development / endocytosis / calcium ion transport / positive regulation of inflammatory response / positive regulation of tumor necrosis factor production / Platelet degranulation / heparin binding / regulation of translation / regulation of gene expression Similarity search - Function | ||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 4 Å | ||||||||||||||||||||||||
Authors | Zielinski, M. / Peralta Reyes, F.S. / Gremer, L. / Pagnon de la Vega, M. / Roeder, C. / Heidler, T.V. / Syvaenen, S. / Willbold, D. / Sehlin, D. / Ingelsson, M. / Schroeder, G.F. | ||||||||||||||||||||||||
| Funding support | Germany, 1items
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Citation | Journal: Acta Neuropathol Commun / Year: 2025Title: Cryo-EM studies of amyloid-β fibrils from human and murine brains carrying the Uppsala APP mutation (Δ690-695). Authors: Mara Zielinski / Fernanda S Peralta Reyes / Lothar Gremer / Simon Sommerhage / María Pagnon de la Vega / Christine Röder / Thomas V Heidler / Stina Syvänen / Dieter Willbold / Dag Sehlin ...Authors: Mara Zielinski / Fernanda S Peralta Reyes / Lothar Gremer / Simon Sommerhage / María Pagnon de la Vega / Christine Röder / Thomas V Heidler / Stina Syvänen / Dieter Willbold / Dag Sehlin / Martin Ingelsson / Gunnar F Schröder / ![]() Abstract: Today, 13 intra-amyloid-β (Aβ) amyloid precursor protein (APP) gene mutations are known to cause familial Alzheimer's disease (AD). Most of them are point mutations causing an increased production ...Today, 13 intra-amyloid-β (Aβ) amyloid precursor protein (APP) gene mutations are known to cause familial Alzheimer's disease (AD). Most of them are point mutations causing an increased production or a change in the conformation of Aβ. The Uppsala APP mutation (Δ690-695 in APP, Δ19-24 in Aβ) is the first known multi-codon deletion causing autosomal dominant AD. Here, we applied cryo-electron microscopy (cryo-EM) to investigate the structure of Aβ fibrils with the Uppsala APP mutation from tg-UppSwe mouse brain tissue. Murine AβUpp(1-42) are made of two identical S-shaped protofilaments with an ordered fibril core of S8-A42. The murine Aβ fold is almost identical to previously described human type II filaments, although the amino acid sequences differ considerably. In addition, we report the cryo-EM structure of Aβ fibrils from the temporal cortex of a patient with the Uppsala APP mutation. The observed structure of the human Aβ fold closely resembles previously described type I fibrils. Structural modeling suggests that these fibrils are composed of wild-type Aβ, which implies that AβUpp may be less soluble and thus not readily accessible for cryo-EM image processing and structure determination. Additionally, from the human sample we determined the structures of tau paired helical filaments and tau straight filaments, which are identical to those found in sporadic AD cases. Finally, we present the 3D cryo-EM structures of four dominant AβUpp(1-42) fibril polymorphs, formed in vitro. All four polymorphs differ from the observed folds of Uppsala Aβ in murine and human brain tissue, respectively. | ||||||||||||||||||||||||
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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 | 9fh4.cif.gz | 81.7 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9fh4.ent.gz | 63 KB | Display | PDB format |
| PDBx/mmJSON format | 9fh4.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/fh/9fh4 ftp://data.pdbj.org/pub/pdb/validation_reports/fh/9fh4 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 50439MC ![]() 9fh1C ![]() 9fh2C ![]() 9fh3C ![]() 9fh5C ![]() 9fh6C M: map data used to model this data C: citing same article ( |
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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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Components
| #1: Protein/peptide | Mass: 3811.330 Da / Num. of mol.: 10 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: P05067Has protein modification | N | |
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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: Amyloid fibrils of amyloid-beta(1-42)delta(19-24) / Type: TISSUE / Entity ID: all / Source: NATURAL |
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| Source (natural) | Organism: unidentified (others) |
| Buffer solution | pH: 2 Details: 30% (v/v) acetonitrile (AcN), 0.1% (v/v) trifluoroacetic acid (TFA) at pH 2 (~300 uM monomer concentration) |
| 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: Talos Arctica / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TALOS ARCTICA |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||
| Helical symmerty | Angular rotation/subunit: -2.2 ° / Axial rise/subunit: 4.73 Å / Axial symmetry: C1 | ||||||||||||||||
| 3D reconstruction | Resolution: 4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 52721 / Symmetry type: HELICAL |
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Homo sapiens (human)
Germany, 1items
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FIELD EMISSION GUN