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- PDB-7nrs: Conformation 1 of straight filament from primary age-related tauo... -

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Basic information

Entry
Database: PDB / ID: 7nrs
TitleConformation 1 of straight filament from primary age-related tauopathy brain
ComponentsMicrotubule-associated protein tau
KeywordsPROTEIN FIBRIL / Tau filament
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: 2.68 Å
AuthorsShi, Y. / Murzin, A.G. / Falcon, B. / Epstein, A. / Machin, J. / Tempest, P. / Newell, K.L. / Vidal, R. / Garringer, H.J. / Sahara, N. ...Shi, Y. / Murzin, A.G. / Falcon, B. / Epstein, A. / Machin, J. / Tempest, P. / Newell, K.L. / Vidal, R. / Garringer, H.J. / Sahara, N. / Higuchi, M. / Ghetti, B. / Jang, M. / Scheres, S.H.W. / Goedert, M.
Funding support United Kingdom, European Union, United States, Japan, 6items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom)MC_UP_A025_1013 United Kingdom
Medical Research Council (MRC, United Kingdom)MC_U105184291 United Kingdom
Innovative Medicines Initiative116060European Union
National Institutes of Health/National Institute on Aging (NIH/NIA)P30-AG010133 United States
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)U01-NS110437 United States
Japan Agency for Medical Research and Development (AMED)JP20dm0207072 Japan
CitationJournal: Acta Neuropathol / Year: 2021
Title: Cryo-EM structures of tau filaments from Alzheimer's disease with PET ligand APN-1607.
Authors: Yang Shi / Alexey G Murzin / Benjamin Falcon / Alexander Epstein / Jonathan Machin / Paul Tempest / Kathy L Newell / Ruben Vidal / Holly J Garringer / Naruhiko Sahara / Makoto Higuchi / ...Authors: Yang Shi / Alexey G Murzin / Benjamin Falcon / Alexander Epstein / Jonathan Machin / Paul Tempest / Kathy L Newell / Ruben Vidal / Holly J Garringer / Naruhiko Sahara / Makoto Higuchi / Bernardino Ghetti / Ming-Kuei Jang / Sjors H W Scheres / Michel Goedert /
Abstract: Tau and Aβ assemblies of Alzheimer's disease (AD) can be visualized in living subjects using positron emission tomography (PET). Tau assemblies comprise paired helical and straight filaments (PHFs ...Tau and Aβ assemblies of Alzheimer's disease (AD) can be visualized in living subjects using positron emission tomography (PET). Tau assemblies comprise paired helical and straight filaments (PHFs and SFs). APN-1607 (PM-PBB3) is a recently described PET ligand for AD and other tau proteinopathies. Since it is not known where in the tau folds PET ligands bind, we used electron cryo-microscopy (cryo-EM) to determine the binding sites of APN-1607 in the Alzheimer fold. We identified two major sites in the β-helix of PHFs and SFs and a third major site in the C-shaped cavity of SFs. In addition, we report that tau filaments from posterior cortical atrophy (PCA) and primary age-related tauopathy (PART) are identical to those from AD. In support, fluorescence labelling showed binding of APN-1607 to intraneuronal inclusions in AD, PART and PCA. Knowledge of the binding modes of APN-1607 to tau filaments may lead to the development of new ligands with increased specificity and binding activity. We show that cryo-EM can be used to identify the binding sites of small molecules in amyloid filaments.
History
DepositionMar 4, 2021Deposition site: PDBE / Processing site: PDBE
Revision 1.0Mar 24, 2021Provider: repository / Type: Initial release
Revision 1.1Mar 31, 2021Group: Database references / Category: citation
Item: _citation.journal_id_ISSN / _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Apr 28, 2021Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Jul 10, 2024Group: Data collection / Database references
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / citation / database_2 / em_admin
Item: _citation.country / _database_2.pdbx_DOI ..._citation.country / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update

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Assembly

Deposited unit
A: Microtubule-associated protein tau
I: Microtubule-associated protein tau
B: Microtubule-associated protein tau
D: Microtubule-associated protein tau
F: Microtubule-associated protein tau
H: Microtubule-associated protein tau
C: Microtubule-associated protein tau
E: Microtubule-associated protein tau
G: Microtubule-associated protein tau
J: Microtubule-associated protein tau


Theoretical massNumber of molelcules
Total (without water)459,19910
Polymers459,19910
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area51380 Å2
ΔGint-175 kcal/mol
Surface area31940 Å2
MethodPISA

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Components

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


Mass: 45919.871 Da / Num. of mol.: 10 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P10636

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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: Sarkosyl-insoluble fractions from primary age-related tauopathy brain
Type: TISSUE / Entity ID: all / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
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
Image recordingElectron dose: 58 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: -1.08 ° / Axial rise/subunit: 4.75 Å / Axial symmetry: C1
3D reconstructionResolution: 2.68 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 475025 / Symmetry type: HELICAL

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