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- EMDB-53530: Tau filaments seeded by AD homogenate using 0N3R C322S -

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Basic information

Entry
Database: EMDB / ID: EMD-53530
TitleTau filaments seeded by AD homogenate using 0N3R C322S
Map dataSharpened map
Sample
  • Complex: Microtubule associate tau protein assembled into an amyloid filament
    • Protein or peptide: Isoform Tau-D of Microtubule-associated protein tau
KeywordsMAPT / Tau / Alzheimer's Disease / RT-QuiC / PROTEIN FIBRIL
Function / homology
Function and homology information


plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / main axon / phosphatidylinositol bisphosphate binding / regulation of long-term synaptic depression / tubulin complex ...plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / main axon / phosphatidylinositol bisphosphate binding / regulation of long-term synaptic depression / tubulin complex / positive regulation of protein localization to synapse / negative regulation of tubulin deacetylation / generation of neurons / regulation of chromosome organization / rRNA metabolic process / axonal transport of mitochondrion / regulation of mitochondrial fission / axon development / central nervous system neuron development / intracellular distribution of mitochondria / regulation of microtubule polymerization / microtubule polymerization / lipoprotein particle binding / minor groove of adenine-thymine-rich DNA binding / dynactin binding / negative regulation of mitochondrial membrane potential / apolipoprotein binding / axolemma / protein polymerization / glial cell projection / negative regulation of mitochondrial fission / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / positive regulation of axon extension / neurofibrillary tangle assembly / Activation of AMPK downstream of NMDARs / regulation of cellular response to heat / synapse assembly / supramolecular fiber organization / positive regulation of protein localization / regulation of calcium-mediated signaling / somatodendritic compartment / cellular response to brain-derived neurotrophic factor stimulus / cytoplasmic microtubule organization / positive regulation of microtubule polymerization / axon cytoplasm / stress granule assembly / phosphatidylinositol binding / regulation of microtubule cytoskeleton organization / nuclear periphery / protein phosphatase 2A binding / positive regulation of superoxide anion generation / cellular response to reactive oxygen species / astrocyte activation / Hsp90 protein binding / microglial cell activation / cellular response to nerve growth factor stimulus / response to lead ion / synapse organization / PKR-mediated signaling / protein homooligomerization / regulation of synaptic plasticity / SH3 domain binding / memory / microtubule cytoskeleton organization / cytoplasmic ribonucleoprotein granule / neuron projection development / cell-cell signaling / single-stranded DNA binding / protein-folding chaperone binding / actin binding / cellular response to heat / microtubule cytoskeleton / cell body / growth cone / double-stranded DNA binding / microtubule binding / protein-macromolecule adaptor activity / dendritic spine / sequence-specific DNA binding / amyloid fibril formation / microtubule / learning or memory / neuron projection / regulation of autophagy / membrane raft / axon / negative regulation of gene expression / neuronal cell body / dendrite / DNA damage response / protein kinase binding / enzyme binding / mitochondrion / DNA binding / RNA binding / extracellular region / identical protein binding / nucleus / plasma membrane
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)
Methodhelical reconstruction / cryo EM / Resolution: 2.6 Å
AuthorsLovestam S / Scheres HWS
Funding support United Kingdom, 1 items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom) United Kingdom
CitationJournal: To Be Published
Title: Serial amplification of tau filaments using Alzheimers brain homogenates and C322A or C322S recombinant tau
Authors: Santambrogio A / Lovestam S / Metrick AM / Lohr ST / Xu P / Caughey B / Scheres HWS / Vendruscolo M
History
DepositionApr 30, 2025-
Header (metadata) releaseJun 11, 2025-
Map releaseJun 11, 2025-
UpdateJun 11, 2025-
Current statusJun 11, 2025Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_53530.png

Downloads & links

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Map

FileDownload / File: emd_53530.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationSharpened map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 384 pix.
= 317.184 Å		0.83 Å/pix.
x 384 pix.
= 317.184 Å		0.83 Å/pix.
x 384 pix.
= 317.184 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.826 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.0074
Minimum - Maximum-0.03919113 - 0.06474124
Average (Standard dev.)0.00010018195 (±0.0026516106)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 317.184 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Half map 2

Fileemd_53530_half_map_1.map
AnnotationHalf map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map 1

Fileemd_53530_half_map_2.map
AnnotationHalf map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Microtubule associate tau protein assembled into an amyloid filament

EntireName: Microtubule associate tau protein assembled into an amyloid filament
Components
  • Complex: Microtubule associate tau protein assembled into an amyloid filament
    • Protein or peptide: Isoform Tau-D of Microtubule-associated protein tau

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Supramolecule #1: Microtubule associate tau protein assembled into an amyloid filament

SupramoleculeName: Microtubule associate tau protein assembled into an amyloid filament
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Isoform Tau-D of Microtubule-associated protein tau

MacromoleculeName: Isoform Tau-D of Microtubule-associated protein tau / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 14.452269 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
VQIVYKPVDL SKVTSKSGSL GNIHHKPGGG QVEVKSEKLD FKDRVQSKIG SLDNITHVPG GGNKKIETHK LTFRENAKAK TDHGAEIVY KSPVVSGDTS PRHLSNVSST GSIDMVDSPQ LATLADEVSA SLAKQGL

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

BufferpH: 7.2
GridModel: Quantifoil / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Instrument: FEI VITROBOT MARK III

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 0.5 µm
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: -0.93 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 5) / Number images used: 173842
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: OTHER
Final angle assignmentType: NOT APPLICABLE
FSC plot (resolution estimation)

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