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Open data
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Basic information
| Entry | Database: PDB / ID: 7q4m | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Title | Type II beta-amyloid 42 Filaments from Human Brain | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Components | Amyloid-beta precursor protein | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Keywords | PROTEIN FIBRIL / amyloid filaments / Abeta42 / human brain / cryo-EM | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands / 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 / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands / 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 / neuron remodeling / Lysosome Vesicle Biogenesis / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / dendrite development / regulation of multicellular organism growth / nuclear envelope lumen / 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 / intracellular copper ion homeostasis / Notch signaling pathway / main axon / ECM proteoglycans / response to insulin-like growth factor stimulus / positive regulation of T cell migration / regulation of presynapse assembly / neuronal dense core vesicle / swimming behavior / adult locomotory behavior / Purinergic signaling in leishmaniasis infection / positive regulation of chemokine production / positive regulation of calcium-mediated signaling / extracellular matrix organization / positive regulation of mitotic cell cycle / axonogenesis / cellular response to manganese ion / neuron projection maintenance / clathrin-coated pit / astrocyte activation / regulation of neuron apoptotic process / Mitochondrial protein degradation / positive regulation of glycolytic process / ionotropic glutamate receptor signaling pathway / platelet alpha granule lumen / learning / response to interleukin-1 / cellular response to cAMP / cellular response to copper ion / endosome lumen / trans-Golgi network membrane / locomotory behavior / positive regulation of interleukin-1 beta production / dendritic shaft / central nervous system development / positive regulation of long-term synaptic potentiation / protein serine/threonine kinase binding / Post-translational protein phosphorylation / regulation of long-term neuronal synaptic plasticity / serine-type endopeptidase inhibitor activity / 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 interleukin-6 production / recycling endosome / positive regulation of JNK cascade / response to lead ion / 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 / endocytosis / neuron projection development / positive regulation of inflammatory response / calcium ion transport / positive regulation of tumor necrosis factor production / regulation of translation / regulation of gene expression / Platelet degranulation / heparin binding Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 2.8 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Authors | Yang, Y. / Arseni, D. / Zhang, W. / Huang, M. / Lovestam, S.K.A. / Schweighauser, M. / Kotecha, A. / Murzin, A.G. / Peak-Chew, S.Y. / Macdonald, J. ...Yang, Y. / Arseni, D. / Zhang, W. / Huang, M. / Lovestam, S.K.A. / Schweighauser, M. / Kotecha, A. / Murzin, A.G. / Peak-Chew, S.Y. / Macdonald, J. / Lavenir, I. / Garringer, H.J. / Gelpi, E. / Newell, K.L. / Kovacs, G.G. / Vidal, R. / Ghetti, B. / Falcon, B. / Scheres, S.H.W. / Goedert, M. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Funding support | United States, 6items
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Citation | Journal: Science / Year: 2022Title: Cryo-EM structures of amyloid-β 42 filaments from human brains. Authors: Yang Yang / Diana Arseni / Wenjuan Zhang / Melissa Huang / Sofia Lövestam / Manuel Schweighauser / Abhay Kotecha / Alexey G Murzin / Sew Y Peak-Chew / Jennifer Macdonald / Isabelle Lavenir ...Authors: Yang Yang / Diana Arseni / Wenjuan Zhang / Melissa Huang / Sofia Lövestam / Manuel Schweighauser / Abhay Kotecha / Alexey G Murzin / Sew Y Peak-Chew / Jennifer Macdonald / Isabelle Lavenir / Holly J Garringer / Ellen Gelpi / Kathy L Newell / Gabor G Kovacs / Ruben Vidal / Bernardino Ghetti / Benjamin Ryskeldi-Falcon / Sjors H W Scheres / Michel Goedert / ![]() Abstract: Filament assembly of amyloid-β peptides ending at residue 42 (Aβ42) is a central event in Alzheimer’s disease. Here, we report the cryo–electron microscopy (cryo-EM) structures of Aβ42 ...Filament assembly of amyloid-β peptides ending at residue 42 (Aβ42) is a central event in Alzheimer’s disease. Here, we report the cryo–electron microscopy (cryo-EM) structures of Aβ42 filaments from human brains. Two structurally related S-shaped protofilament folds give rise to two types of filaments. Type I filaments were found mostly in the brains of individuals with sporadic Alzheimer’s disease, and type II filaments were found in individuals with familial Alzheimer’s disease and other conditions. The structures of Aβ42 filaments from the brain differ from those of filaments assembled in vitro. By contrast, in knock-in mice, Aβ42 deposits were made of type II filaments. Knowledge of Aβ42 filament structures from human brains may lead to the development of inhibitors of assembly and improved imaging agents. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7q4m.cif.gz | 62.1 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7q4m.ent.gz | 44.8 KB | Display | PDB format |
| PDBx/mmJSON format | 7q4m.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/q4/7q4m ftp://data.pdbj.org/pub/pdb/validation_reports/q4/7q4m | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 13809MC ![]() 7q4bC M: map data used to model this data C: citing same article ( |
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| Similar structure data | |
| EM raw data | EMPIAR-10917 (Title: Single particle cryo-EM dataset of sarkosyl-insoluble fraction from the frontal cortex of an individual with pathological aging of amyloid-β 42 filamentsData size: 203.1 Data #1: Unaligned multi-frame movies [micrographs - multiframe]) |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 |
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Components
| #1: Protein/peptide | Mass: 4520.087 Da / Num. of mol.: 10 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P05067#2: Chemical | ChemComp-UNX / Has ligand of interest | Y | Has 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: beta-amyloid 42 filaments extracted from the human brain with Alzheimer's disease Type: TISSUE / Entity ID: #1 / Source: NATURAL |
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| Source (natural) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.5 |
| 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 |
| Image recording | Electron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| Software | Name: PHENIX / Version: 1.18.2_3874: / Classification: refinement | ||||||||||||||||||||||||
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| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| Helical symmerty | Angular rotation/subunit: -2.9 ° / Axial rise/subunit: 4.9 Å / Axial symmetry: C2 | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 128731 / Symmetry type: HELICAL | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)
United States, 6items
Citation

UCSF Chimera













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