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- PDB-8bg9: Murine amyloid-beta filaments with the Arctic mutation (E22G) fro... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8bg9 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Title | Murine amyloid-beta filaments with the Arctic mutation (E22G) from APP(NL-G-F) mouse brains | ABeta | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Amyloid-beta protein 40 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | PROTEIN FIBRIL / Amyloid / amyloid-beta / Arctic mutation / APP / NL-G-F / mouse brains / filaments / E22G / E693G | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Function / homology | ![]() Formyl peptide receptors bind formyl peptides and many other ligands / Advanced glycosylation endproduct receptor signaling / ECM proteoglycans / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / TRAF6 mediated NF-kB activation / Lysosome Vesicle Biogenesis / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / Post-translational protein phosphorylation / TAK1-dependent IKK and NF-kappa-B activation / G alpha (q) signalling events ...Formyl peptide receptors bind formyl peptides and many other ligands / Advanced glycosylation endproduct receptor signaling / ECM proteoglycans / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / TRAF6 mediated NF-kB activation / Lysosome Vesicle Biogenesis / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / Post-translational protein phosphorylation / TAK1-dependent IKK and NF-kappa-B activation / G alpha (q) signalling events / G alpha (i) signalling events / Platelet degranulation / central nervous system neuron differentiation / Mitochondrial protein degradation / negative regulation of presynapse assembly / collateral sprouting in absence of injury / cytosolic mRNA polyadenylation / synaptic assembly at neuromuscular junction / regulation of synapse structure or activity / axo-dendritic transport / axon midline choice point recognition / smooth endoplasmic reticulum calcium ion homeostasis / mating behavior / ciliary rootlet / Golgi-associated vesicle / neuron remodeling / suckling behavior / COPII-coated ER to Golgi transport vesicle / intracellular vesicle / dendrite development / presynaptic active zone / signaling receptor activator activity / neuromuscular process controlling balance / transition metal ion binding / regulation of multicellular organism growth / intracellular copper ion homeostasis / negative regulation of neuron differentiation / spindle midzone / forebrain development / smooth endoplasmic reticulum / clathrin-coated pit / Notch signaling pathway / positive regulation of G2/M transition of mitotic cell cycle / extracellular matrix organization / ionotropic glutamate receptor signaling pathway / axonogenesis / cholesterol metabolic process / positive regulation of mitotic cell cycle / adult locomotory behavior / locomotory behavior / serine-type endopeptidase inhibitor activity / visual learning / recycling endosome / neuromuscular junction / cognition / long-term synaptic potentiation / memory / neuron cellular homeostasis / endocytosis / neuron projection development / neuron differentiation / G2/M transition of mitotic cell cycle / apical part of cell / synaptic vesicle / cell-cell junction / mitotic cell cycle / heparin binding / regulation of gene expression / regulation of translation / growth cone / cytoplasmic vesicle / perikaryon / neuron apoptotic process / response to oxidative stress / gene expression / early endosome / neuron projection / receptor complex / cell adhesion / RNA polymerase II cis-regulatory region sequence-specific DNA binding / protein domain specific binding / axon / protein kinase binding / perinuclear region of cytoplasm / cell surface / endoplasmic reticulum / Golgi apparatus / positive regulation of transcription by RNA polymerase II / extracellular region / identical protein binding / nucleus / membrane / plasma membrane / cytoplasm Similarity search - Function | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biological species | ![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3.5 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Yang, Y. / Zhang, W.J. / Murzin, A.G. / Schweighauser, M. / Huang, M. / Lovestam, S.K.A. / Peak-Chew, S.Y. / Macdonald, J. / Lavenir, I. / Ghetti, B. ...Yang, Y. / Zhang, W.J. / Murzin, A.G. / Schweighauser, M. / Huang, M. / Lovestam, S.K.A. / Peak-Chew, S.Y. / Macdonald, J. / Lavenir, I. / Ghetti, B. / Graff, C. / Kumar, A. / Nordber, A. / Goedert, M. / Scheres, S.H.W. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM structures of amyloid-β filaments with the Arctic mutation (E22G) from human and mouse brains. Authors: Yang Yang / Wenjuan Zhang / Alexey G Murzin / Manuel Schweighauser / Melissa Huang / Sofia Lövestam / Sew Y Peak-Chew / Takashi Saito / Takaomi C Saido / Jennifer Macdonald / Isabelle ...Authors: Yang Yang / Wenjuan Zhang / Alexey G Murzin / Manuel Schweighauser / Melissa Huang / Sofia Lövestam / Sew Y Peak-Chew / Takashi Saito / Takaomi C Saido / Jennifer Macdonald / Isabelle Lavenir / Bernardino Ghetti / Caroline Graff / Amit Kumar / Agneta Nordberg / Michel Goedert / Sjors H W Scheres / ![]() ![]() ![]() ![]() Abstract: The Arctic mutation, encoding E693G in the amyloid precursor protein (APP) gene [E22G in amyloid-β (Aβ)], causes dominantly inherited Alzheimer's disease. Here, we report the high-resolution cryo- ...The Arctic mutation, encoding E693G in the amyloid precursor protein (APP) gene [E22G in amyloid-β (Aβ)], causes dominantly inherited Alzheimer's disease. Here, we report the high-resolution cryo-EM structures of Aβ filaments from the frontal cortex of a previously described case (AβPParc1) with the Arctic mutation. Most filaments consist of two pairs of non-identical protofilaments that comprise residues V12-V40 (human Arctic fold A) and E11-G37 (human Arctic fold B). They have a substructure (residues F20-G37) in common with the folds of type I and type II Aβ42. When compared to the structures of wild-type Aβ42 filaments, there are subtle conformational changes in the human Arctic folds, because of the lack of a side chain at G22, which may strengthen hydrogen bonding between mutant Aβ molecules and promote filament formation. A minority of Aβ42 filaments of type II was also present, as were tau paired helical filaments. In addition, we report the cryo-EM structures of Aβ filaments with the Arctic mutation from mouse knock-in line App. Most filaments are made of two identical mutant protofilaments that extend from D1 to G37 (App murine Arctic fold). In a minority of filaments, two dimeric folds pack against each other in an anti-parallel fashion. The App murine Arctic fold differs from the human Arctic folds, but shares some substructure. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 26.9 KB | Display | ![]() |
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PDB format | ![]() | 14.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 349.8 KB | Display | ![]() |
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Full document | ![]() | 350.6 KB | Display | |
Data in XML | ![]() | 2.7 KB | Display | |
Data in CIF | ![]() | 3.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 16027MC ![]() 8bfzC ![]() 8bg0C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Noncrystallographic symmetry (NCS) | NCS oper:
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Components
#1: Protein/peptide | Mass: 4008.476 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() Has protein modification | N | |
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-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
Component | Name: Amyloid-beta filaments extracted from the mouse brains with APP NL-G-F mutations Type: TISSUE / Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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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 defocus max: 2600 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
Software | Name: REFMAC / Version: 5.8.0352 / Classification: refinement | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Helical symmerty | Angular rotation/subunit: 179.347 ° / Axial rise/subunit: 2.46009 Å / Axial symmetry: C1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 39823 / Symmetry type: HELICAL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | Resolution: 3.5→91.5 Å / Cor.coef. Fo:Fc: 0.874 / SU B: 32.782 / SU ML: 0.489 / ESU R: 0.409 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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Solvent computation | Solvent model: PARAMETERS FOR MASK CACLULATION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 89.99 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: 1 / Total: 564 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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