+Open data
-Basic information
Entry | Database: PDB / ID: 8sei | ||||||
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Title | SF Tau from Down Syndrome | ||||||
Components | Microtubule-associated protein tau | ||||||
Keywords | NEUROPEPTIDE / SF Tau / Tau Filament / Down Syndrome / Human Trisomy 21 | ||||||
Function / homology | Function and homology information plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / neurofibrillary tangle assembly / positive regulation of diacylglycerol kinase activity / axonal transport / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / positive regulation of protein localization to synapse / microtubule lateral binding / negative regulation of mitochondrial fission ...plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / neurofibrillary tangle assembly / positive regulation of diacylglycerol kinase activity / axonal transport / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / positive regulation of protein localization to synapse / microtubule lateral binding / negative regulation of mitochondrial fission / tubulin complex / phosphatidylinositol bisphosphate binding / main axon / regulation of long-term synaptic depression / negative regulation of kinase activity / negative regulation of tubulin deacetylation / generation of neurons / positive regulation of protein localization / rRNA metabolic process / internal protein amino acid acetylation / regulation of chromosome organization / regulation of mitochondrial fission / axonal transport of mitochondrion / intracellular distribution of mitochondria / axon development / central nervous system neuron development / regulation of microtubule polymerization / microtubule polymerization / minor groove of adenine-thymine-rich DNA binding / lipoprotein particle binding / dynactin binding / glial cell projection / apolipoprotein binding / negative regulation of mitochondrial membrane potential / protein polymerization / axolemma / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / positive regulation of axon extension / regulation of microtubule cytoskeleton organization / Activation of AMPK downstream of NMDARs / cytoplasmic microtubule organization / supramolecular fiber organization / regulation of cellular response to heat / stress granule assembly / positive regulation of superoxide anion generation / regulation of calcium-mediated signaling / axon cytoplasm / positive regulation of microtubule polymerization / somatodendritic compartment / synapse assembly / cellular response to brain-derived neurotrophic factor stimulus / astrocyte activation / phosphatidylinositol binding / nuclear periphery / cellular response to nerve growth factor stimulus / protein phosphatase 2A binding / regulation of autophagy / response to lead ion / synapse organization / microglial cell activation / cellular response to reactive oxygen species / Hsp90 protein binding / PKR-mediated signaling / protein homooligomerization / regulation of synaptic plasticity / memory / activation of cysteine-type endopeptidase activity involved in apoptotic process / microtubule cytoskeleton organization / SH3 domain binding / cytoplasmic ribonucleoprotein granule / microtubule cytoskeleton / neuron projection development / cell-cell signaling / double-stranded DNA binding / protein-macromolecule adaptor activity / single-stranded DNA binding / actin binding / protein-folding chaperone binding / cellular response to heat / cell body / growth cone / microtubule binding / sequence-specific DNA binding / amyloid fibril formation / microtubule / learning or memory / dendritic spine / nuclear speck / neuron projection / membrane raft / axon / negative regulation of gene expression / neuronal cell body / DNA damage response / dendrite / protein kinase binding / enzyme binding / mitochondrion / DNA binding Similarity search - Function | ||||||
Biological species | Homo (humans) | ||||||
Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 2.9 Å | ||||||
Authors | Hoq, M.R. / Bharath, S.R. / Jiang, W. / Vago, F.S. / Bharath, S.R. | ||||||
Funding support | United States, 1items
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Citation | Journal: Nat Struct Mol Biol / Year: 2024 Title: 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. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8sei.cif.gz | 140 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8sei.ent.gz | 113.3 KB | Display | PDB format |
PDBx/mmJSON format | 8sei.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8sei_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
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Full document | 8sei_full_validation.pdf.gz | 1.2 MB | Display | |
Data in XML | 8sei_validation.xml.gz | 33.6 KB | Display | |
Data in CIF | 8sei_validation.cif.gz | 45.9 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/se/8sei ftp://data.pdbj.org/pub/pdb/validation_reports/se/8sei | HTTPS FTP |
-Related structure data
Related structure data | 40413MC 8sehC 8sejC 8sekC 8selC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 7940.141 Da / Num. of mol.: 10 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo (humans) / Gene: MAPT, MAPTL, MTBT1, TAU / Production host: Homo sapiens (human) / References: UniProt: P10636 |
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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 |
-Sample preparation
Component | Name: SF Tau / Type: TISSUE / Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: Homo sapiens (human) |
Buffer solution | pH: 7.2 |
Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: TFS KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 81000 X / Nominal defocus max: 5000 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm |
Specimen holder | Cryogen: NITROGEN |
Image recording | Average exposure time: 1.103 sec. / Electron dose: 50.46 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
EM software | Name: CTFFIND / Category: CTF correction |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
Helical symmerty | Angular rotation/subunit: -1.04 ° / Axial rise/subunit: 4.78 Å / Axial symmetry: C1 |
3D reconstruction | Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 21743 / Symmetry type: HELICAL |