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- PDB-9eo7: PHF type tau filament from V337M mutant -

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Basic information

Entry
Database: PDB / ID: 9eo7
TitlePHF type tau filament from V337M mutant
ComponentsIsoform Tau-F of Microtubule-associated protein tau
KeywordsPROTEIN FIBRIL / PHF / tau filament / V337M
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 / rRNA metabolic process / axonal transport of mitochondrion / regulation of mitochondrial fission / axon development / regulation of microtubule-based movement / regulation of chromosome organization / central nervous system neuron development / intracellular distribution of mitochondria / 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 / main axon / protein polymerization / axolemma / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / negative regulation of mitochondrial fission / glial cell projection / neurofibrillary tangle assembly / positive regulation of axon extension / regulation of cellular response to heat / Activation of AMPK downstream of NMDARs / positive regulation of superoxide anion generation / positive regulation of protein localization / regulation of long-term synaptic depression / cellular response to brain-derived neurotrophic factor stimulus / positive regulation of microtubule polymerization / supramolecular fiber organization / synapse assembly / cytoplasmic microtubule organization / regulation of calcium-mediated signaling / somatodendritic compartment / axon cytoplasm / phosphatidylinositol binding / astrocyte activation / enzyme inhibitor activity / nuclear periphery / stress granule assembly / protein phosphatase 2A binding / regulation of microtubule cytoskeleton organization / cellular response to reactive oxygen species / Hsp90 protein binding / microglial cell activation / cellular response to nerve growth factor stimulus / synapse organization / PKR-mediated signaling / regulation of synaptic plasticity / protein homooligomerization / regulation of autophagy / response to lead ion / SH3 domain binding / microtubule cytoskeleton organization / memory / cytoplasmic ribonucleoprotein granule / neuron projection development / cell-cell signaling / single-stranded DNA binding / protein-folding chaperone binding / cellular response to heat / microtubule cytoskeleton / actin binding / growth cone / cell body / double-stranded DNA binding / protein-macromolecule adaptor activity / microtubule binding / sequence-specific DNA binding / dendritic spine / amyloid fibril formation / microtubule / learning or memory / 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)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 2.8 Å
AuthorsQi, C. / Scheres, S.H.W. / Michel, G.
Funding support United Kingdom, 2items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom)MC_UP_A025_1013 United Kingdom
Medical Research Council (MRC, United Kingdom)MC_U105184291 United Kingdom
Citation
Journal: Nat Struct Mol Biol / Year: 2025
Title: Tau filaments with the Alzheimer fold in human MAPT mutants V337M and R406W.
Authors: Chao Qi / Sofia Lövestam / Alexey G Murzin / Sew Peak-Chew / Catarina Franco / Marika Bogdani / Caitlin Latimer / Jill R Murrell / Patrick W Cullinane / Zane Jaunmuktane / Thomas D Bird / ...Authors: Chao Qi / Sofia Lövestam / Alexey G Murzin / Sew Peak-Chew / Catarina Franco / Marika Bogdani / Caitlin Latimer / Jill R Murrell / Patrick W Cullinane / Zane Jaunmuktane / Thomas D Bird / Bernardino Ghetti / Sjors H W Scheres / Michel Goedert /
Abstract: Frontotemporal dementia (FTD) and Alzheimer's disease (AD) are the most common forms of early-onset dementia. Unlike AD, FTD begins with behavioral changes before the development of cognitive ...Frontotemporal dementia (FTD) and Alzheimer's disease (AD) are the most common forms of early-onset dementia. Unlike AD, FTD begins with behavioral changes before the development of cognitive impairment. Dominantly inherited mutations in MAPT, the microtubule-associated protein tau gene, give rise to cases of FTD and parkinsonism linked to chromosome 17. These individuals develop abundant filamentous tau inclusions in brain cells in the absence of β-amyloid deposits. Here, we used cryo-electron microscopy to determine the structures of tau filaments from the brains of human MAPT mutants V337M and R406W. Both amino acid substitutions gave rise to tau filaments with the Alzheimer fold, which consisted of paired helical filaments in all V337M and R406W cases and of straight filaments in two V337M cases. We also identified another assembly of the Alzheimer fold into triple tau filaments in a V337M case. Filaments assembled from recombinant tau (297-391) with substitution V337M had the Alzheimer fold and showed an increased rate of assembly.
#1: Journal: bioRxiv / Year: 2024
Title: Tau filaments with the Alzheimer fold in cases with mutations V337M and R406W.
Authors: Chao Qi / Sofia Lövestam / Alexey G Murzin / Sew Peak-Chew / Catarina Franco / Marika Bogdani / Caitlin Latimer / Jill R Murrell / Patrick W Cullinane / Zane Jaunmuktane / Thomas D Bird / ...Authors: Chao Qi / Sofia Lövestam / Alexey G Murzin / Sew Peak-Chew / Catarina Franco / Marika Bogdani / Caitlin Latimer / Jill R Murrell / Patrick W Cullinane / Zane Jaunmuktane / Thomas D Bird / Bernardino Ghetti / Sjors H W Scheres / Michel Goedert /
Abstract: Frontotemporal dementia (FTD) and Alzheimer's disease are the most common forms of early-onset dementia. Dominantly inherited mutations in , the microtubule-associated protein tau gene, cause FTD and ...Frontotemporal dementia (FTD) and Alzheimer's disease are the most common forms of early-onset dementia. Dominantly inherited mutations in , the microtubule-associated protein tau gene, cause FTD and parkinsonism linked to chromosome 17 (FTDP-17). Individuals with FTDP-17 develop abundant filamentous tau inclusions in brain cells. Here we used electron cryo-microscopy to determine the structures of tau filaments from the brains of individuals with mutations V337M and R406W. Both mutations gave rise to tau filaments with the Alzheimer fold, which consisted of paired helical filaments in all V337M and R406W cases and of straight filaments in two V337M cases. We also identified a new assembly of the Alzheimer fold into triple tau filaments in a V337M case. Filaments assembled from recombinant tau(297-391) with mutation V337M had the Alzheimer fold and showed an increased rate of assembly.
History
DepositionMar 14, 2024Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 10, 2024Provider: repository / Type: Initial release
Revision 1.1Mar 26, 2025Group: Data collection / Database references / Structure summary
Category: citation / citation_author ...citation / citation_author / em_admin / pdbx_entry_details
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification
Revision 1.2Jul 23, 2025Group: Data collection / Database references / Category: citation / em_admin
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Isoform Tau-F of Microtubule-associated protein tau


Theoretical massNumber of molelcules
Total (without water)45,9521
Polymers45,9521
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein Isoform Tau-F of Microtubule-associated protein tau / Neurofibrillary tangle protein / Paired helical filament-tau / PHF-tau


Mass: 45951.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P10636
Has ligand of interestY
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: FILAMENT / 3D reconstruction method: helical reconstruction

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Sample preparation

ComponentName: tau filament V337M / Type: COMPLEX / Entity ID: all / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 40 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

CTF correctionType: NONE
Helical symmertyAngular rotation/subunit: 179.4 ° / Axial rise/subunit: 2.37 Å / Axial symmetry: C1
3D reconstructionResolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 330371 / Symmetry type: HELICAL

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