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- EMDB-40413: SF Tau from Down Syndrome -

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ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-40413
TitleSF Tau from Down Syndrome
Map datafull map of SF tau
Sample
  • Tissue: SF Tau
    • Protein or peptide: Microtubule-associated protein tau
KeywordsSF Tau / Tau Filament / Down Syndrome / NEUROPEPTIDE / Human Trisomy 21
Function / homology
Function and homology information


plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / tubulin complex / positive regulation of protein localization to synapse / phosphatidylinositol bisphosphate binding / generation of neurons ...plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / tubulin complex / positive regulation of protein localization to synapse / phosphatidylinositol bisphosphate binding / generation of neurons / axon development / axonal transport of mitochondrion / rRNA metabolic process / regulation of mitochondrial fission / regulation of microtubule-based movement / central nervous system neuron development / intracellular distribution of mitochondria / regulation of chromosome organization / minor groove of adenine-thymine-rich DNA binding / lipoprotein particle binding / microtubule polymerization / negative regulation of mitochondrial membrane potential / regulation of microtubule polymerization / dynactin binding / apolipoprotein binding / protein polymerization / main axon / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / glial cell projection / negative regulation of mitochondrial fission / axolemma / positive regulation of axon extension / neurofibrillary tangle assembly / regulation of cellular response to heat / positive regulation of microtubule polymerization / positive regulation of protein localization / Activation of AMPK downstream of NMDARs / positive regulation of superoxide anion generation / cytoplasmic microtubule organization / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / supramolecular fiber organization / regulation of calcium-mediated signaling / axon cytoplasm / somatodendritic compartment / synapse assembly / astrocyte activation / nuclear periphery / phosphatidylinositol binding / protein phosphatase 2A binding / enzyme inhibitor activity / stress granule assembly / regulation of autophagy / regulation of microtubule cytoskeleton organization / cellular response to reactive oxygen species / microglial cell activation / cellular response to nerve growth factor stimulus / Hsp90 protein binding / regulation of synaptic plasticity / memory / SH3 domain binding / synapse organization / protein homooligomerization / PKR-mediated signaling / microtubule cytoskeleton organization / response to lead ion / neuron projection development / cytoplasmic ribonucleoprotein granule / microtubule cytoskeleton / cell-cell signaling / cellular response to heat / single-stranded DNA binding / growth cone / protein-folding chaperone binding / actin binding / cell body / double-stranded DNA binding / sequence-specific DNA binding / microtubule binding / amyloid fibril formation / dendritic spine / microtubule / learning or memory / protein-macromolecule adaptor activity / neuron projection / membrane raft / negative regulation of gene expression / axon / neuronal cell body / DNA damage response / dendrite / protein kinase binding / enzyme binding / mitochondrion / DNA binding / RNA binding / extracellular region / identical protein binding / nucleus
Similarity search - Function
Microtubule-associated protein Tau / Microtubule associated protein, tubulin-binding repeat / Tau and MAP protein, tubulin-binding repeat / Tau and MAP proteins tubulin-binding repeat signature. / Tau and MAP proteins tubulin-binding repeat profile. / :
Similarity search - Domain/homology
Microtubule-associated protein tau
Similarity search - Component
Biological speciesHomo sapiens (human) / Homo (humans)
Methodhelical reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsHoq MR / Bharath SR / Jiang W / Vago FS
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute on Aging (NIH/NIA)5U01NS110437 and and 1RF1AG071177 United States
CitationJournal: 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
DepositionApr 10, 2023-
Header (metadata) releaseApr 3, 2024-
Map releaseApr 3, 2024-
UpdateJun 26, 2024-
Current statusJun 26, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_40413.png

Downloads & links

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Map

FileDownload / File: emd_40413.map.gz / Format: CCP4 / Size: 1.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationfull map of SF tau
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesX (Sec.)Y (Row.)Z (Col.)
1.05 Å/pix.
x 76 pix.
= 80.104 Å		1.05 Å/pix.
x 123 pix.
= 129.642 Å		1.05 Å/pix.
x 43 pix.
= 45.322 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

generated in cubic-lattice coordinate

Voxel sizeX=Y=Z: 1.054 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.0241
Minimum - Maximum-0.046702504 - 0.09423635
Average (Standard dev.)0.0011495191 (±0.009900101)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderZYX
Origin71120103
Dimensions1234376
Spacing7612343
CellA: 80.104004 Å / B: 129.642 Å / C: 45.322002 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Half map of SF Tau

Fileemd_40413_half_map_1.map
AnnotationHalf map of SF Tau
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map of SF Tau

Fileemd_40413_half_map_2.map
AnnotationHalf map of SF Tau
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : SF Tau

EntireName: SF Tau
Components
  • Tissue: SF Tau
    • Protein or peptide: Microtubule-associated protein tau

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Supramolecule #1: SF Tau

SupramoleculeName: SF Tau / type: tissue / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Microtubule-associated protein tau

MacromoleculeName: Microtubule-associated protein tau / type: protein_or_peptide / ID: 1 / Number of copies: 10 / Enantiomer: LEVO
Source (natural)Organism: Homo (humans)
Molecular weightTheoretical: 7.940141 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
VQIVYKPVDL SKVTSKCGSL GNIHHKPGGG QVEVKSEKLD FKDRVQSKIG SLDNITHVPG GGNKKIETHK LTF

UniProtKB: Microtubule-associated protein tau

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Experimental details

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Structure determination

Methodcryo EM
Processinghelical reconstruction
Aggregation statefilament

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Sample preparation

Concentration1 mg/mL
BufferpH: 7.2
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average exposure time: 1.103 sec. / Average electron dose: 50.46 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 5.0 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 81000
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Helical parameters - Δz: 4.78 Å
Applied symmetry - Helical parameters - Δ&Phi: -1.04 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 21743
Startup modelType of model: NONE
Final angle assignmentType: NOT APPLICABLE
FSC plot (resolution estimation)

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