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- PDB-8bfb: Sarkosyl-extracted AppNL-G-F Abeta42 fibril structure (Methoxy-X0... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8bfb | |||||||||
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Title | Sarkosyl-extracted AppNL-G-F Abeta42 fibril structure (Methoxy-X04-labelled mice) | |||||||||
![]() | Amyloid-beta precursor protein | |||||||||
![]() | PROTEIN FIBRIL / Amyloid / fibril / helical / cross-beta / beta amyloid / ex vivo / arctic mutant / alzheimers disease | |||||||||
Function / homology | ![]() regulation of epidermal growth factor-activated receptor activity / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / regulation of synapse structure or activity / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands / axo-dendritic transport / synaptic assembly at neuromuscular junction / signaling receptor activator activity ...regulation of epidermal growth factor-activated receptor activity / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / regulation of synapse structure or activity / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands / axo-dendritic transport / synaptic assembly at neuromuscular junction / signaling receptor activator activity / axon midline choice point recognition / smooth endoplasmic reticulum calcium ion homeostasis / astrocyte activation involved in immune response / regulation of spontaneous synaptic transmission / mating behavior / NMDA selective glutamate receptor signaling pathway / ciliary rootlet / Lysosome Vesicle Biogenesis / PTB domain binding / Golgi-associated vesicle / neuron remodeling / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / positive regulation of amyloid fibril formation / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / nuclear envelope lumen / COPII-coated ER to Golgi transport vesicle / suckling behavior / dendrite development / presynaptic active zone / modulation of excitatory postsynaptic potential / TRAF6 mediated NF-kB activation / Advanced glycosylation endproduct receptor signaling / neuromuscular process controlling balance / The NLRP3 inflammasome / regulation of presynapse assembly / transition metal ion binding / negative regulation of long-term synaptic potentiation / regulation of multicellular organism growth / negative regulation of neuron differentiation / ECM proteoglycans / intracellular copper ion homeostasis / smooth endoplasmic reticulum / positive regulation of T cell migration / spindle midzone / Purinergic signaling in leishmaniasis infection / protein serine/threonine kinase binding / positive regulation of chemokine production / clathrin-coated pit / regulation of peptidyl-tyrosine phosphorylation / forebrain development / Notch signaling pathway / Mitochondrial protein degradation / neuron projection maintenance / positive regulation of G2/M transition of mitotic cell cycle / positive regulation of protein metabolic process / positive regulation of calcium-mediated signaling / ionotropic glutamate receptor signaling pathway / positive regulation of glycolytic process / response to interleukin-1 / cholesterol metabolic process / positive regulation of mitotic cell cycle / extracellular matrix organization / adult locomotory behavior / axonogenesis / platelet alpha granule lumen / trans-Golgi network membrane / positive regulation of peptidyl-threonine phosphorylation / positive regulation of interleukin-1 beta production / learning / dendritic shaft / positive regulation of long-term synaptic potentiation / central nervous system development / locomotory behavior / endosome lumen / astrocyte activation / positive regulation of JNK cascade / Post-translational protein phosphorylation / synapse organization / microglial cell activation / regulation of long-term neuronal synaptic plasticity / TAK1-dependent IKK and NF-kappa-B activation / serine-type endopeptidase inhibitor activity / visual learning / neuromuscular junction / recycling endosome / cognition / Golgi lumen / positive regulation of inflammatory response / neuron cellular homeostasis / positive regulation of non-canonical NF-kappaB signal transduction / positive regulation of interleukin-6 production / cellular response to amyloid-beta / endocytosis / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / G2/M transition of mitotic cell cycle / positive regulation of tumor necrosis factor production / neuron projection development / cell-cell junction / synaptic vesicle / Platelet degranulation Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
![]() | Wilkinson, M. / Leistner, C. / Burgess, A. / Goodfellow, S. / Deuchars, S. / Ranson, N.A. / Radford, S.E. / Frank, R.A.W. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: The in-tissue molecular architecture of β-amyloid pathology in the mammalian brain. Authors: Conny Leistner / Martin Wilkinson / Ailidh Burgess / Megan Lovatt / Stanley Goodbody / Yong Xu / Susan Deuchars / Sheena E Radford / Neil A Ranson / René A W Frank / ![]() Abstract: Amyloid plaques composed of Aβ fibrils are a hallmark of Alzheimer's disease (AD). However, the molecular architecture of amyloid plaques in the context of fresh mammalian brain tissue is unknown. ...Amyloid plaques composed of Aβ fibrils are a hallmark of Alzheimer's disease (AD). However, the molecular architecture of amyloid plaques in the context of fresh mammalian brain tissue is unknown. Here, using cryogenic correlated light and electron tomography we report the in situ molecular architecture of Aβ fibrils in the App familial AD mouse model containing the Arctic mutation and an atomic model of ex vivo purified Arctic Aβ fibrils. We show that in-tissue Aβ fibrils are arranged in a lattice or parallel bundles, and are interdigitated by subcellular compartments, extracellular vesicles, extracellular droplets and extracellular multilamellar bodies. The Arctic Aβ fibril differs significantly from an earlier App fibril structure, indicating a striking effect of the Arctic mutation. These structural data also revealed an ensemble of additional fibrillar species, including thin protofilament-like rods and branched fibrils. Together, these results provide a structural model for the dense network architecture that characterises β-amyloid plaque pathology. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 70.3 KB | Display | ![]() |
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PDB format | ![]() | 53.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 16019MC ![]() 8bfaC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein/peptide | Mass: 4448.025 Da / Num. of mol.: 10 / Source method: isolated from a natural source Details: Humanised Abeta42 from App^NL-G-F mice with arctic mutation (E22G) Source: (natural) ![]() ![]() |
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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: Sarkosyl-extracted AppNL-G-F Abeta42 fibril / Type: COMPLEX Details: Fibrils purified from mouse brain labelled with Methoxy-X04 Entity ID: all / Source: NATURAL | |||||||||||||||
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Molecular weight | Value: 4.441 kDa/nm / Experimental value: NO | |||||||||||||||
Source (natural) | Organism: ![]() ![]() | |||||||||||||||
Buffer solution | pH: 7.4 | |||||||||||||||
Buffer component |
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Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: Sarkosyl-insoluble fibrils from App^NL-G-F mouse brain labelled with Methoxy-X04 | |||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: C-flat-1.2/1.3 | |||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 90 % / Chamber temperature: 277 K / Details: 6s blot |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 2900 nm / Nominal defocus min: 1400 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE |
Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 6 sec. / Electron dose: 41 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 4165 Details: 1442 raw EER frames were collected per image and combined into 40 fractions for processing |
EM imaging optics | Energyfilter name: TFS Selectris / Energyfilter slit width: 10 eV |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
Helical symmerty | Angular rotation/subunit: 179.355 ° / Axial rise/subunit: 2.414 Å / Axial symmetry: C1 | ||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 136214 Details: Manually picked a subset of images to train a model for automatic fibril segment picking in crYOLO | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 3640 / Symmetry type: HELICAL | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | B value: 52 / Protocol: AB INITIO MODEL / Space: REAL / Target criteria: Correlation coefficient |