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- EMDB-56599: Tau filament with G272V mutation -

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Basic information

Entry
Database: EMDB / ID: EMD-56599
TitleTau filament with G272V mutation
Map data
Sample
  • Complex: tau filament with G272V mutation
    • Protein or peptide: Isoform Tau-F of Microtubule-associated protein tau
Keywordstau / filament / amyloid / G272V / Pick's disease / PROTEIN FIBRIL
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 / central nervous system neuron development / regulation of mitochondrial fission / regulation of microtubule-based movement / 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 / glial cell projection / regulation of microtubule polymerization or depolymerization / 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 / regulation of calcium-mediated signaling / cytoplasmic microtubule organization / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / axon cytoplasm / supramolecular fiber organization / 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 / memory / regulation of synaptic plasticity / 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)
Methodhelical reconstruction / cryo EM / Resolution: 2.1 Å
AuthorsQi C / Lovestam S / Scheres HWS / Goedert M
Funding support United Kingdom, China, 3 items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom)MC_UP_A025_1013 United Kingdom
Medical Research Council (MRC, United Kingdom)MC_1051284291 United Kingdom
National Natural Science Foundation of China (NSFC)32571423 China
CitationJournal: Acta Neuropathol / Year: 2026
Title: The Pick fold in tau filaments from human MAPT mutants.
Authors: Chao Qi / Sofia Lövestam / Jenny Shi / Alexey G Murzin / Sew Peak-Chew / Thomas T Warner / Harro Seelaar / Patrick W Cullinane / Zane Jaunmuktane / John C van Swieten / Sjors H W Scheres / Michel Goedert /
Abstract: Mutations in MAPT, the tau gene, give rise to forms of frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17 T), with abundant filamentous tau inclusions in brain cells. Some ...Mutations in MAPT, the tau gene, give rise to forms of frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17 T), with abundant filamentous tau inclusions in brain cells. Some mutations that encode missense and deletion variants can give rise to a clinical picture of Pick's disease and filaments made of three-repeat tau in nerve cells. Here we report the electron cryo-microscopy (cryo-EM) structures of tau filaments from the brains of individuals with MAPT mutations D252V, G272V, S320F and ΔG389-I392. The two-layered Pick fold was present in the brains of individuals with mutations D252V and ΔG389-I392 who had also abundant tau inclusions in glial cells. By contrast, mutations G272V and S320F gave rise to a more open variant of the Pick fold, with residues 272-341 rotated by 20-25° with respect to the rest of the structure. These findings show that missense mutations within the filament core can modify the Pick fold, generating closely related structural variants. In addition, we were able to reconstitute the Pick fold and some of its variants using seeded assembly with recombinant 0N3R tau carrying 12 serine or threonine to aspartate substitutions (PAD12) and missense mutations D252V, G272V and S320F. This work provides a foundation for the development of structure-based diagnostic and therapeutic approaches.
History
DepositionFeb 5, 2026-
Header (metadata) releaseJul 29, 2026-
Map releaseJul 29, 2026-
UpdateJul 29, 2026-
Current statusJul 29, 2026Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_56599.png

Downloads & links

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Map

FileDownload / File: emd_56599.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.74 Å/pix.
x 400 pix.
= 297.6 Å		0.74 Å/pix.
x 400 pix.
= 297.6 Å		0.74 Å/pix.
x 400 pix.
= 297.6 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.744 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.002
Minimum - Maximum-0.008026132 - 0.024231598
Average (Standard dev.)0.00005569242 (±0.0007633453)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 297.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_56599_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_56599_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : tau filament with G272V mutation

EntireName: tau filament with G272V mutation
Components
  • Complex: tau filament with G272V mutation
    • Protein or peptide: Isoform Tau-F of Microtubule-associated protein tau

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Supramolecule #1: tau filament with G272V mutation

SupramoleculeName: tau filament with G272V mutation / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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

MacromoleculeName: Isoform Tau-F 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: 45.961949 KDa
SequenceString: MAEPRQEFEV MEDHAGTYGL GDRKDQGGYT MHQDQEGDTD AGLKESPLQT PTEDGSEEPG SETSDAKSTP TAEDVTAPLV DEGAPGKQA AAQPHTEIPE GTTAEEAGIG DTPSLEDEAA GHVTQARMVS KSKDGTGSDD KKAKGADGKT KIATPRGAAP P GQKGQANA ...String:
MAEPRQEFEV MEDHAGTYGL GDRKDQGGYT MHQDQEGDTD AGLKESPLQT PTEDGSEEPG SETSDAKSTP TAEDVTAPLV DEGAPGKQA AAQPHTEIPE GTTAEEAGIG DTPSLEDEAA GHVTQARMVS KSKDGTGSDD KKAKGADGKT KIATPRGAAP P GQKGQANA TRIPAKTPPA PKTPPSSGEP PKSGDRSGYS SPGSPGTPGS RSRTPSLPTP PTREPKKVAV VRTPPKSPSS AK SRLQTAP VPMPDLKNVK SKIGSTENLK HQPGVGKVQI INKKLDLSNV QSKCGSKDNI KHVPGGGSVQ IVYKPVDLSK VTS KCGSLG NIHHKPGGGQ VEVKSEKLDF KDRVQSKIGS LDNITHVPGG GNKKIETHKL TFRENAKAKT DHGAEIVYKS PVVS GDTSP RHLSNVSSTG SIDMVDSPQL ATLADEVSAS LAKQGL

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
VitrificationCryogen name: ETHANE

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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: 2.0 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Helical parameters - Δz: 4.89 Å
Applied symmetry - Helical parameters - Δ&Phi: -0.66 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 2.1 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION / Number images used: 335295
CTF correctionType: NONE
Startup modelType of model: INSILICO MODEL
Final angle assignmentType: NOT APPLICABLE
FSC plot (resolution estimation)

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