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- PDB-28lp: Tau filament with delG389_I392 mutation -

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Basic information

Entry
Database: PDB / ID: 28lp
TitleTau filament with delG389_I392 mutation
ComponentsIsoform Tau-C of Microtubule-associated protein tau
KeywordsPROTEIN FIBRIL / tau / filament / amyloid / delG389_I392 / Pick's disease
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)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 2.3 Å
AuthorsQi, C. / Lovestam, S. / Scheres, H.W.S. / Goedert, M.
Funding support United Kingdom, China, 3items
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, 2026Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 29, 2026Provider: repository / Type: Initial release
Revision 1.0Jul 29, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jul 29, 2026Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Jul 29, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jul 29, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jul 29, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jul 29, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Isoform Tau-C of Microtubule-associated protein tau
B: Isoform Tau-C of Microtubule-associated protein tau
C: Isoform Tau-C of Microtubule-associated protein tau
D: Isoform Tau-C of Microtubule-associated protein tau
E: Isoform Tau-C of Microtubule-associated protein tau


Theoretical massNumber of molelcules
Total (without water)211,4845
Polymers211,4845
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-C of Microtubule-associated protein tau / Neurofibrillary tangle protein / Paired helical filament-tau / PHF-tau


Mass: 42296.742 Da / Num. of mol.: 5 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P10636
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 with G389_I392 deletion / Type: COMPLEX / Entity ID: all / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
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: TFS 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: GATAN K3 (6k x 4k)

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Processing

EM software
IDNameCategory
1RELIONparticle selection
13RELION3D reconstruction
CTF correctionType: NONE
Helical symmertyAngular rotation/subunit: -0.73 ° / Axial rise/subunit: 4.8 Å / Axial symmetry: C1
3D reconstructionResolution: 2.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 143931 / Symmetry type: HELICAL

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