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- PDB-5oqv: Near-atomic resolution fibril structure of complete amyloid-beta(... -

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Basic information

Entry
Database: PDB / ID: 5oqv
TitleNear-atomic resolution fibril structure of complete amyloid-beta(1-42) by cryo-EM
ComponentsAmyloid beta A4 protein
KeywordsPROTEIN FIBRIL / amyloid / fibril / aggregation / Alzheimer's disease
Function / homology
Function and homology information


amyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / growth cone filopodium / microglia development / collateral sprouting in absence of injury / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of synapse structure or activity / axo-dendritic transport / regulation of Wnt signaling pathway ...amyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / growth cone filopodium / microglia development / collateral sprouting in absence of injury / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of synapse structure or activity / axo-dendritic transport / regulation of Wnt signaling pathway / axon midline choice point recognition / astrocyte activation involved in immune response / NMDA selective glutamate receptor signaling pathway / regulation of spontaneous synaptic transmission / mating behavior / growth factor receptor binding / peptidase activator activity / Golgi-associated vesicle / PTB domain binding / Lysosome Vesicle Biogenesis / positive regulation of amyloid fibril formation / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / astrocyte projection / neuron remodeling / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / nuclear envelope lumen / positive regulation of protein metabolic process / dendrite development / TRAF6 mediated NF-kB activation / modulation of excitatory postsynaptic potential / signaling receptor activator activity / Advanced glycosylation endproduct receptor signaling / The NLRP3 inflammasome / negative regulation of long-term synaptic potentiation / main axon / transition metal ion binding / regulation of multicellular organism growth / intracellular copper ion homeostasis / regulation of presynapse assembly / ECM proteoglycans / positive regulation of T cell migration / neuronal dense core vesicle / Purinergic signaling in leishmaniasis infection / positive regulation of chemokine production / cellular response to manganese ion / clathrin-coated pit / Notch signaling pathway / extracellular matrix organization / neuron projection maintenance / Mitochondrial protein degradation / astrocyte activation / ionotropic glutamate receptor signaling pathway / axonogenesis / response to interleukin-1 / positive regulation of mitotic cell cycle / positive regulation of calcium-mediated signaling / protein serine/threonine kinase binding / cellular response to copper ion / platelet alpha granule lumen / cellular response to cAMP / positive regulation of glycolytic process / adult locomotory behavior / central nervous system development / positive regulation of long-term synaptic potentiation / positive regulation of interleukin-1 beta production / trans-Golgi network membrane / endosome lumen / dendritic shaft / TAK1-dependent IKK and NF-kappa-B activation / learning / positive regulation of JNK cascade / Post-translational protein phosphorylation / locomotory behavior / microglial cell activation / serine-type endopeptidase inhibitor activity / regulation of long-term neuronal synaptic plasticity / positive regulation of non-canonical NF-kappaB signal transduction / synapse organization / cellular response to nerve growth factor stimulus / visual learning / recycling endosome / response to lead ion / positive regulation of interleukin-6 production / Golgi lumen / cognition / endocytosis / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / positive regulation of inflammatory response / cellular response to amyloid-beta / neuron projection development / positive regulation of tumor necrosis factor production / Platelet degranulation / heparin binding / regulation of gene expression / regulation of translation / early endosome membrane / G alpha (i) signalling events / perikaryon / G alpha (q) signalling events / dendritic spine
Similarity search - Function
Amyloidogenic glycoprotein, copper-binding / Amyloidogenic glycoprotein, copper-binding domain conserved site / Amyloidogenic glycoprotein, copper-binding domain superfamily / Copper-binding of amyloid precursor, CuBD / Amyloid precursor protein (APP) copper-binding (CuBD) domain signature. / Amyloidogenic glycoprotein, amyloid-beta peptide superfamily / Beta-amyloid peptide (beta-APP) / Amyloidogenic glycoprotein, amyloid-beta peptide / Beta-amyloid precursor protein C-terminal / Amyloidogenic glycoprotein, intracellular domain, conserved site ...Amyloidogenic glycoprotein, copper-binding / Amyloidogenic glycoprotein, copper-binding domain conserved site / Amyloidogenic glycoprotein, copper-binding domain superfamily / Copper-binding of amyloid precursor, CuBD / Amyloid precursor protein (APP) copper-binding (CuBD) domain signature. / Amyloidogenic glycoprotein, amyloid-beta peptide superfamily / Beta-amyloid peptide (beta-APP) / Amyloidogenic glycoprotein, amyloid-beta peptide / Beta-amyloid precursor protein C-terminal / Amyloidogenic glycoprotein, intracellular domain, conserved site / Beta-amyloid precursor protein C-terminus / Amyloid precursor protein (APP) intracellular domain signature. / Amyloidogenic glycoprotein, extracellular / Amyloidogenic glycoprotein, heparin-binding / Amyloidogenic glycoprotein, E2 domain / E2 domain superfamily / Amyloidogenic glycoprotein, heparin-binding domain superfamily / Amyloid A4 N-terminal heparin-binding / E2 domain of amyloid precursor protein / Amyloid precursor protein (APP) E1 domain profile. / Amyloid precursor protein (APP) E2 domain profile. / amyloid A4 / Amyloidogenic glycoprotein / Proteinase inhibitor I2, Kunitz, conserved site / Pancreatic trypsin inhibitor (Kunitz) family signature. / BPTI/Kunitz family of serine protease inhibitors. / Pancreatic trypsin inhibitor Kunitz domain / Kunitz/Bovine pancreatic trypsin inhibitor domain / Pancreatic trypsin inhibitor (Kunitz) family profile. / Pancreatic trypsin inhibitor Kunitz domain superfamily / PH-like domain superfamily
Similarity search - Domain/homology
Amyloid-beta precursor protein
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 4 Å
AuthorsGremer, L. / Schoelzel, D. / Schenk, C. / Reinartz, E. / Labahn, J. / Ravelli, R. / Tusche, M. / Lopez-Iglesias, C. / Hoyer, W. / Heise, H. ...Gremer, L. / Schoelzel, D. / Schenk, C. / Reinartz, E. / Labahn, J. / Ravelli, R. / Tusche, M. / Lopez-Iglesias, C. / Hoyer, W. / Heise, H. / Willbold, D. / Schroeder, G.F.
CitationJournal: Science / Year: 2017
Title: Fibril structure of amyloid-β(1-42) by cryo-electron microscopy.
Authors: Lothar Gremer / Daniel Schölzel / Carla Schenk / Elke Reinartz / Jörg Labahn / Raimond B G Ravelli / Markus Tusche / Carmen Lopez-Iglesias / Wolfgang Hoyer / Henrike Heise / Dieter ...Authors: Lothar Gremer / Daniel Schölzel / Carla Schenk / Elke Reinartz / Jörg Labahn / Raimond B G Ravelli / Markus Tusche / Carmen Lopez-Iglesias / Wolfgang Hoyer / Henrike Heise / Dieter Willbold / Gunnar F Schröder /
Abstract: Amyloids are implicated in neurodegenerative diseases. Fibrillar aggregates of the amyloid-β protein (Aβ) are the main component of the senile plaques found in brains of Alzheimer's disease ...Amyloids are implicated in neurodegenerative diseases. Fibrillar aggregates of the amyloid-β protein (Aβ) are the main component of the senile plaques found in brains of Alzheimer's disease patients. We present the structure of an Aβ(1-42) fibril composed of two intertwined protofilaments determined by cryo-electron microscopy (cryo-EM) to 4.0-angstrom resolution, complemented by solid-state nuclear magnetic resonance experiments. The backbone of all 42 residues and nearly all side chains are well resolved in the EM density map, including the entire N terminus, which is part of the cross-β structure resulting in an overall "LS"-shaped topology of individual subunits. The dimer interface protects the hydrophobic C termini from the solvent. The characteristic staggering of the nonplanar subunits results in markedly different fibril ends, termed "groove" and "ridge," leading to different binding pathways on both fibril ends, which has implications for fibril growth.
History
DepositionAug 14, 2017Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 13, 2017Provider: repository / Type: Initial release
Revision 1.1Sep 20, 2017Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.name
Revision 1.2Sep 27, 2017Group: Structure summary / Category: struct_keywords / Item: _struct_keywords.text
Revision 1.3Oct 18, 2017Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.title
Revision 1.4May 15, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Assembly

Deposited unit
A: Amyloid beta A4 protein
B: Amyloid beta A4 protein
C: Amyloid beta A4 protein
D: Amyloid beta A4 protein
E: Amyloid beta A4 protein
F: Amyloid beta A4 protein
G: Amyloid beta A4 protein
H: Amyloid beta A4 protein
I: Amyloid beta A4 protein


Theoretical massNumber of molelcules
Total (without water)40,6819
Polymers40,6819
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area29420 Å2
ΔGint-125 kcal/mol
Surface area15810 Å2
MethodPISA

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Components

#1: Protein/peptide
Amyloid beta A4 protein / ABPP / APPI / APP / Alzheimer disease amyloid protein / Amyloid precursor protein / Beta-amyloid ...ABPP / APPI / APP / Alzheimer disease amyloid protein / Amyloid precursor protein / Beta-amyloid precursor protein / Cerebral vascular amyloid peptide / CVAP / PreA4 / Protease nexin-II / PN-II


Mass: 4520.087 Da / Num. of mol.: 9
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: APP, A4, AD1 / Production host: Escherichia coli (E. coli) / References: UniProt: P05067

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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: Beta-amyloid protein 42 fibrils / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 2 / Details: in water
Buffer component
IDConc.NameBuffer-ID
130 % (v/v)acetonitrile1
20.1 % (v/v)trifluoroacetic acid1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R 1.2/1.3 Quantifoil
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE
Details: 2.5 microL sample was applied to the grid, blotted for 2.5 s before plunging.

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TECNAI ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 110000 X / Cs: 2.7 mm
Image recordingAverage exposure time: 2 sec. / Electron dose: 24 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON III (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 2026

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Processing

EM software
IDNameVersionCategoryDetails
2EPU1.8.0.1533image acquisition
4SPARX4CTF correctionsxcter
9SPARX4initial Euler assignmentsxhelicon
10SPARX4final Euler assignmentsxheliconlocal.py
12SPARX43D reconstruction
13PHENIX1.11.1model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: -179.275 ° / Axial rise/subunit: 2.335 Å / Axial symmetry: C1
3D reconstructionResolution: 4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 127765
Details: For the even/odd test, the fibrils were split after the final reconstruction (no gold-standard). These two half sets were then refined further independently for another 12 iterations.
Num. of class averages: 1 / Symmetry type: HELICAL
Atomic model buildingProtocol: AB INITIO MODEL / Space: REAL / Target criteria: Cross-correlation coefficient

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