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- EMDB-21201: Singlet Tau Fibril from Corticobasal Degeneration Human Brain Tissue -

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Basic information

Entry
Database: EMDB / ID: EMD-21201
TitleSinglet Tau Fibril from Corticobasal Degeneration Human Brain Tissue
Map dataSinglet Tau Fibril from Corticobasal Degeneration Human Brain Tissue
Sample
  • Tissue: Singlet Tau Fibril from Corticobasal Degeneration Human Brain Tissue
    • Protein or peptide: Microtubule-associated protein tauTau protein
KeywordsPathological amyloid fibril / cross-beta fold / parallel beta-sheets / PROTEIN FIBRIL
Function / homology
Function and homology information


plus-end-directed organelle transport along microtubule / axonal transport / histone-dependent DNA binding / neurofibrillary tangle assembly / positive regulation of diacylglycerol kinase activity / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / positive regulation of protein localization to synapse / microtubule lateral binding / tubulin complex ...plus-end-directed organelle transport along microtubule / axonal transport / histone-dependent DNA binding / neurofibrillary tangle assembly / positive regulation of diacylglycerol kinase activity / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / positive regulation of protein localization to synapse / microtubule lateral binding / 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 / regulation of chromosome organization / positive regulation of protein localization / rRNA metabolic process / internal protein amino acid acetylation / regulation of mitochondrial fission / intracellular distribution of mitochondria / axonal transport of mitochondrion / 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 / negative regulation of mitochondrial membrane potential / apolipoprotein binding / protein polymerization / negative regulation of mitochondrial fission / axolemma / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / positive regulation of axon extension / supramolecular fiber organization / Activation of AMPK downstream of NMDARs / regulation of microtubule cytoskeleton organization / cytoplasmic microtubule organization / stress granule assembly / regulation of cellular response to heat / axon cytoplasm / regulation of calcium-mediated signaling / positive regulation of microtubule polymerization / cellular response to brain-derived neurotrophic factor stimulus / somatodendritic compartment / synapse assembly / phosphatidylinositol binding / nuclear periphery / cellular response to nerve growth factor stimulus / positive regulation of superoxide anion generation / protein phosphatase 2A binding / regulation of autophagy / astrocyte activation / synapse organization / response to lead ion / microglial cell activation / regulation of synaptic plasticity / Hsp90 protein binding / PKR-mediated signaling / protein homooligomerization / cytoplasmic ribonucleoprotein granule / memory / microtubule cytoskeleton organization / cellular response to reactive oxygen species / SH3 domain binding / activation of cysteine-type endopeptidase activity involved in apoptotic process / neuron projection development / microtubule cytoskeleton / protein-macromolecule adaptor activity / single-stranded DNA binding / cell-cell signaling / cellular response to heat / cell body / actin binding / growth cone / protein-folding chaperone binding / double-stranded DNA binding / microtubule binding / microtubule / amyloid fibril formation / sequence-specific DNA binding / dendritic spine / learning or memory / neuron projection / nuclear speck / membrane raft / axon / negative regulation of gene expression / neuronal cell body / dendrite / DNA damage response / protein kinase binding / enzyme binding / mitochondrion / DNA binding
Similarity search - Function
: / Microtubule associated protein, tubulin-binding repeat / Microtubule-associated protein Tau / 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: 4.3 Å
AuthorsArakhamia T / Lee CE
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS) United States
National Institutes of Health/National Institute on Aging (NIH/NIA) United States
CitationJournal: Cell / Year: 2020
Title: Posttranslational Modifications Mediate the Structural Diversity of Tauopathy Strains.
Authors: Tamta Arakhamia / Christina E Lee / Yari Carlomagno / Duc M Duong / Sean R Kundinger / Kevin Wang / Dewight Williams / Michael DeTure / Dennis W Dickson / Casey N Cook / Nicholas T Seyfried ...Authors: Tamta Arakhamia / Christina E Lee / Yari Carlomagno / Duc M Duong / Sean R Kundinger / Kevin Wang / Dewight Williams / Michael DeTure / Dennis W Dickson / Casey N Cook / Nicholas T Seyfried / Leonard Petrucelli / Anthony W P Fitzpatrick /
Abstract: Tau aggregation into insoluble filaments is the defining pathological hallmark of tauopathies. However, it is not known what controls the formation and templated seeding of strain-specific structures ...Tau aggregation into insoluble filaments is the defining pathological hallmark of tauopathies. However, it is not known what controls the formation and templated seeding of strain-specific structures associated with individual tauopathies. Here, we use cryo-electron microscopy (cryo-EM) to determine the structures of tau filaments from corticobasal degeneration (CBD) human brain tissue. Cryo-EM and mass spectrometry of tau filaments from CBD reveal that this conformer is heavily decorated with posttranslational modifications (PTMs), enabling us to map PTMs directly onto the structures. By comparing the structures and PTMs of tau filaments from CBD and Alzheimer's disease, it is found that ubiquitination of tau can mediate inter-protofilament interfaces. We propose a structure-based model in which cross-talk between PTMs influences tau filament structure, contributing to the structural diversity of tauopathy strains. Our approach establishes a framework for further elucidating the relationship between the structures of polymorphic fibrils, including their PTMs, and neurodegenerative disease.
History
DepositionJan 9, 2020-
Header (metadata) releaseFeb 5, 2020-
Map releaseMar 4, 2020-
UpdateMar 6, 2024-
Current statusMar 6, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.012
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.012
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6vha
  • Surface level: 0.012
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_21201.png

Downloads & links

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Map

FileDownload / File: emd_21201.map.gz / Format: CCP4 / Size: 75.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationSinglet Tau Fibril from Corticobasal Degeneration Human Brain Tissue
Voxel sizeX=Y=Z: 1.414 Å
Density
Contour LevelBy AUTHOR: 0.012 / Movie #1: 0.012
Minimum - Maximum-0.006696246 - 0.039061278
Average (Standard dev.)0.000033534434 (±0.0007102807)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions270270270
Spacing270270270
CellA=B=C: 381.78 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.4141.4141.414
M x/y/z270270270
origin x/y/z0.0000.0000.000
length x/y/z381.780381.780381.780
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ512512512
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS270270270
D min/max/mean-0.0070.0390.000

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Supplemental data

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Sample components

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Entire : Singlet Tau Fibril from Corticobasal Degeneration Human Brain Tissue

EntireName: Singlet Tau Fibril from Corticobasal Degeneration Human Brain Tissue
Components
  • Tissue: Singlet Tau Fibril from Corticobasal Degeneration Human Brain Tissue
    • Protein or peptide: Microtubule-associated protein tauTau protein

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Supramolecule #1: Singlet Tau Fibril from Corticobasal Degeneration Human Brain Tissue

SupramoleculeName: Singlet Tau Fibril from Corticobasal Degeneration Human Brain Tissue
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: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.608375 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
KVQIINKKLD LSNVQSKCGS KDNIKHVPGG GSVQIVYKPV DLSKVTSKCG SLGNIHHKPG GGQVEVKSEK LDFKDRVQSK IGSLDNITH VPGGGNKKIE THKLTFRE

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: 7.4
GridDetails: unspecified
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 60.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Final angle assignmentType: NOT APPLICABLE
Final reconstructionApplied symmetry - Helical parameters - Δz: 4.8 Å
Applied symmetry - Helical parameters - Δ&Phi: -0.85 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 4.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 9929

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