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- PDB-6cvj: Model of synthetic tau (four tandem repeats of first repeat seque... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6cvj | ||||||
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Title | Model of synthetic tau (four tandem repeats of first repeat sequence) bound to the microtubule | ||||||
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![]() | STRUCTURAL PROTEIN / microtubule / tau | ||||||
Function / homology | ![]() Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport / COPI-dependent Golgi-to-ER retrograde traffic / Carboxyterminal post-translational modifications of tubulin / RHOH GTPase cycle / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / PKR-mediated signaling ...Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport / COPI-dependent Golgi-to-ER retrograde traffic / Carboxyterminal post-translational modifications of tubulin / RHOH GTPase cycle / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / PKR-mediated signaling / The role of GTSE1 in G2/M progression after G2 checkpoint / Aggrephagy / Resolution of Sister Chromatid Cohesion / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Separation of Sister Chromatids / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / Recruitment of NuMA to mitotic centrosomes / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / MHC class II antigen presentation / COPI-mediated anterograde transport / plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / neurofibrillary tangle assembly / positive regulation of diacylglycerol kinase activity / axonal transport / 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 / positive regulation of protein localization / rRNA metabolic process / internal protein amino acid acetylation / regulation of chromosome organization / regulation of mitochondrial fission / axonal transport of mitochondrion / intracellular distribution of mitochondria / 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 / apolipoprotein binding / negative regulation of mitochondrial membrane potential / protein polymerization / axolemma / negative regulation of mitochondrial fission / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / positive regulation of axon extension / regulation of microtubule cytoskeleton organization / Activation of AMPK downstream of NMDARs / supramolecular fiber organization / cytoplasmic microtubule organization / regulation of cellular response to heat / stress granule assembly / regulation of calcium-mediated signaling / axon cytoplasm / positive regulation of microtubule polymerization / somatodendritic compartment / synapse assembly / cellular response to brain-derived neurotrophic factor stimulus / 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 / response to lead ion / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / synapse organization / microglial cell activation / Hsp90 protein binding / regulation of synaptic plasticity / PKR-mediated signaling / protein homooligomerization / structural constituent of cytoskeleton / memory / microtubule cytoskeleton organization / SH3 domain binding / cellular response to reactive oxygen species / cytoplasmic ribonucleoprotein granule / activation of cysteine-type endopeptidase activity involved in apoptotic process / microtubule cytoskeleton / neuron projection development / cell-cell signaling / mitotic cell cycle / protein-macromolecule adaptor activity Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3.2 Å | ||||||
![]() | Nogales, E. / Kellogg, E.H. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Near-atomic model of microtubule-tau interactions. Authors: Elizabeth H Kellogg / Nisreen M A Hejab / Simon Poepsel / Kenneth H Downing / Frank DiMaio / Eva Nogales / ![]() Abstract: Tau is a developmentally regulated axonal protein that stabilizes and bundles microtubules (MTs). Its hyperphosphorylation is thought to cause detachment from MTs and subsequent aggregation into ...Tau is a developmentally regulated axonal protein that stabilizes and bundles microtubules (MTs). Its hyperphosphorylation is thought to cause detachment from MTs and subsequent aggregation into fibrils implicated in Alzheimer's disease. It is unclear which tau residues are crucial for tau-MT interactions, where tau binds on MTs, and how it stabilizes them. We used cryo-electron microscopy to visualize different tau constructs on MTs and computational approaches to generate atomic models of tau-tubulin interactions. The conserved tubulin-binding repeats within tau adopt similar extended structures along the crest of the protofilament, stabilizing the interface between tubulin dimers. Our structures explain the effect of phosphorylation on MT affinity and lead to a model of tau repeats binding in tandem along protofilaments, tethering together tubulin dimers and stabilizing polymerization interfaces. | ||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 240 KB | Display | ![]() |
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PDB format | ![]() | 182.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 7769MC ![]() 7520C ![]() 7522C ![]() 7523C ![]() 7771C ![]() 6cvnC C: citing same article ( M: map data used to model this data |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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3 | ![]()
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Symmetry | Helical symmetry: (Circular symmetry: 1 / Dyad axis: no / N subunits divisor: 1 / Num. of operations: 30 / Rise per n subunits: 8.65 Å / Rotation per n subunits: -25.75 °) |
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Components
-Protein , 3 types, 4 molecules ABCD
#1: Protein | Mass: 50204.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() | ||
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#2: Protein | Mass: 49907.770 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #3: Protein | | Mass: 21903.201 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Non-polymers , 3 types, 4 molecules ![](data/chem/img/GTP.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/GDP.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/GDP.gif)
#4: Chemical | ChemComp-GTP / |
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#5: Chemical | ChemComp-MG / |
#6: Chemical |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: FILAMENT / 3D reconstruction method: helical reconstruction |
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Sample preparation
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Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) | Organism: ![]() ![]() | ||||||||||||||||||||||||||||||
Buffer solution | pH: 6.8 | ||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: tubulin concentration is 0.5 mg/mL, tau concentration is 1 mg/mL | ||||||||||||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: C-flat-1.2/1.3 4C | ||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 310.15 K Details: blot force 10 pN, 6 second blot time. used C-flat 1.2/1.3 holey grids. First 2 uL of microtubules were adhered to grid for 30 seconds, followed by 2 4 uL washes of tau with 30 second incubation for each wash |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 35714 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm / Alignment procedure: COMA FREE |
Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 7.5 sec. / Electron dose: 45 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 712 |
Image scans | Movie frames/image: 30 |
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Processing
EM software |
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Image processing | Details: used motioncorr2 to correct for beam-induced motion | ||||||||||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING ONLY | ||||||||||||||||||||||||||||||||
Helical symmerty | Angular rotation/subunit: -25.75 ° / Axial rise/subunit: 8.65 Å / Axial symmetry: C1 | ||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 57526 | ||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 40522 / Algorithm: FOURIER SPACE / Symmetry type: HELICAL | ||||||||||||||||||||||||||||||||
Atomic model building | B value: 120 / Protocol: FLEXIBLE FIT / Space: REAL / Target criteria: real space correlation |