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Open data
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Basic information
| Entry | Database: PDB / ID: 8sel | ||||||
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| Title | Type IIIb beta-amyloid 40 Filaments from Down Syndrome | ||||||
Components | Amyloid-beta protein 40 | ||||||
Keywords | NEUROPEPTIDE / Beta Amyloid filaments / Down Syndrome / Human Trisomy 21 | ||||||
| Function / homology | Function and homology informationamyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / growth cone filopodium / microglia development / collateral sprouting in absence of injury / Formyl peptide receptors bind formyl peptides and many other ligands / axo-dendritic transport / regulation of Wnt signaling pathway / regulation of synapse structure or activity ...amyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / growth cone filopodium / microglia development / collateral sprouting in absence of injury / Formyl peptide receptors bind formyl peptides and many other ligands / axo-dendritic transport / regulation of Wnt signaling pathway / regulation of synapse structure or activity / axon midline choice point recognition / 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 / Golgi-associated vesicle / PTB domain binding / positive regulation of amyloid fibril formation / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / Lysosome Vesicle Biogenesis / astrocyte projection / neuron remodeling / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / nuclear envelope lumen / dendrite development / positive regulation of protein metabolic process / TRAF6 mediated NF-kB activation / Advanced glycosylation endproduct receptor signaling / signaling receptor activator activity / negative regulation of long-term synaptic potentiation / modulation of excitatory postsynaptic potential / The NLRP3 inflammasome / main axon / transition metal ion binding / intracellular copper ion homeostasis / regulation of multicellular organism growth / ECM proteoglycans / regulation of presynapse assembly / positive regulation of T cell migration / neuronal dense core vesicle / Purinergic signaling in leishmaniasis infection / positive regulation of chemokine production / cellular response to manganese ion / Notch signaling pathway / clathrin-coated pit / extracellular matrix organization / neuron projection maintenance / Mitochondrial protein degradation / astrocyte activation / ionotropic glutamate receptor signaling pathway / positive regulation of calcium-mediated signaling / positive regulation of mitotic cell cycle / axonogenesis / protein serine/threonine kinase binding / response to interleukin-1 / platelet alpha granule lumen / cellular response to copper ion / cellular response to cAMP / positive regulation of glycolytic process / central nervous system development / endosome lumen / positive regulation of interleukin-1 beta production / dendritic shaft / trans-Golgi network membrane / positive regulation of long-term synaptic potentiation / adult locomotory behavior / learning / positive regulation of JNK cascade / Post-translational protein phosphorylation / locomotory behavior / serine-type endopeptidase inhibitor activity / microglial cell activation / positive regulation of non-canonical NF-kappaB signal transduction / TAK1-dependent IKK and NF-kappa-B activation / regulation of long-term neuronal synaptic plasticity / cellular response to nerve growth factor stimulus / recycling endosome / synapse organization / visual learning / 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) / endocytosis / cellular response to amyloid-beta / neuron projection development / positive regulation of inflammatory response / positive regulation of tumor necrosis factor production / Platelet degranulation / heparin binding / regulation of translation / regulation of gene expression / early endosome membrane / G alpha (i) signalling events / perikaryon / G alpha (q) signalling events / dendritic spine Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3.8 Å | ||||||
Authors | Hoq, M.R. / Vago, F.S. / Bharath, S.R. / Jiang, W. | ||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Struct Mol Biol / Year: 2024Title: Cryo-EM structures of amyloid-β and tau filaments in Down syndrome. Authors: Anllely Fernandez / Md Rejaul Hoq / Grace I Hallinan / Daoyi Li / Sakshibeedu R Bharath / Frank S Vago / Xiaoqi Zhang / Kadir A Ozcan / Kathy L Newell / Holly J Garringer / Wen Jiang / ...Authors: Anllely Fernandez / Md Rejaul Hoq / Grace I Hallinan / Daoyi Li / Sakshibeedu R Bharath / Frank S Vago / Xiaoqi Zhang / Kadir A Ozcan / Kathy L Newell / Holly J Garringer / Wen Jiang / Bernardino Ghetti / Ruben Vidal / ![]() Abstract: Adult individuals with Down syndrome (DS) develop Alzheimer disease (AD). Whether there is a difference between AD in DS and AD regarding the structure of amyloid-β (Aβ) and tau filaments is ...Adult individuals with Down syndrome (DS) develop Alzheimer disease (AD). Whether there is a difference between AD in DS and AD regarding the structure of amyloid-β (Aβ) and tau filaments is unknown. Here we report the structure of Aβ and tau filaments from two DS brains. We found two Aβ filaments (types IIIa and IIIb) that differ from those previously reported in sporadic AD and two types of Aβ filaments (I and II) identical to those found in sporadic and familial AD. Tau filaments (paired helical filaments and straight filaments) were identical to those in AD, supporting the notion of a common mechanism through which amyloids trigger aggregation of tau. This knowledge is important for understanding AD in DS and assessing whether adults with DS could be included in AD clinical trials. | ||||||
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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 | 8sel.cif.gz | 136 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8sel.ent.gz | 110.9 KB | Display | PDB format |
| PDBx/mmJSON format | 8sel.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8sel_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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| Full document | 8sel_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML | 8sel_validation.xml.gz | 33.1 KB | Display | |
| Data in CIF | 8sel_validation.cif.gz | 49.5 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/se/8sel ftp://data.pdbj.org/pub/pdb/validation_reports/se/8sel | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 40421MC ![]() 8sehC ![]() 8seiC ![]() 8sejC ![]() 8sekC 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: 4335.852 Da / Num. of mol.: 20 / Source method: isolated from a natural source Details: Type IIIb beta-amyloid 40 Filaments from Human Trisomy 21 Source: (natural) Homo sapiens (human) / References: UniProt: P05067 |
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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: Type IIIb beta amyloid 40 from Human trisomy 21 Case 2. Type: TISSUE / Entity ID: all / Source: NATURAL |
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| Source (natural) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.4 |
| 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: OTHER |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 400 nm |
| Image recording | Electron dose: 52.35 e/Å2 / Detector mode: COUNTING / Film or detector model: DIRECT ELECTRON DE-12 (4k x 3k) |
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Processing
| EM software | Name: RELION / Version: 4 / Category: 3D reconstruction |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| Helical symmerty | Angular rotation/subunit: -0.46 ° / Axial rise/subunit: 4.76 Å / Axial symmetry: C2 |
| 3D reconstruction | Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 4295 / Num. of class averages: 1 / Symmetry type: HELICAL |
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About Yorodumi




Homo sapiens (human)
United States, 1items
Citation








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FIELD EMISSION GUN