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- PDB-7q4m: Type II beta-amyloid 42 Filaments from Human Brain -

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Entry
Database: PDB / ID: 7q4m
TitleType II beta-amyloid 42 Filaments from Human Brain
ComponentsAmyloid-beta precursor protein
KeywordsPROTEIN FIBRIL / amyloid filaments / Abeta42 / human brain / cryo-EM
Function / homology
Function and homology information


amyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / collateral sprouting in absence of injury / growth cone filopodium / microglia development / hippocampal neuron apoptotic process / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands / axo-dendritic transport ...amyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / collateral sprouting in absence of injury / growth cone filopodium / microglia development / hippocampal neuron apoptotic process / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands / axo-dendritic transport / axon midline choice point recognition / regulation of synapse structure or activity / positive regulation of synaptic transmission, cholinergic / astrocyte activation involved in immune response / NMDA selective glutamate receptor signaling pathway / regulation of spontaneous synaptic transmission / mating behavior / growth factor receptor binding / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / positive regulation of amyloid fibril formation / peptidase activator activity / PTB domain binding / Golgi-associated vesicle / Lysosome Vesicle Biogenesis / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / neuron remodeling / astrocyte projection / regulation of multicellular organism growth / nuclear envelope lumen / dendrite development / TRAF6 mediated NF-kB activation / positive regulation of protein metabolic process / negative regulation of long-term synaptic potentiation / signaling receptor activator activity / Notch signaling pathway / transition metal ion binding / Advanced glycosylation endproduct receptor signaling / The NLRP3 inflammasome / intracellular copper ion homeostasis / modulation of excitatory postsynaptic potential / main axon / ECM proteoglycans / positive regulation of T cell migration / response to insulin-like growth factor stimulus / regulation of presynapse assembly / extracellular matrix organization / swimming behavior / adult locomotory behavior / neuronal dense core vesicle / regulation of long-term neuronal synaptic plasticity / Purinergic signaling in leishmaniasis infection / positive regulation of calcium-mediated signaling / positive regulation of chemokine production / positive regulation of mitotic cell cycle / axonogenesis / cellular response to manganese ion / neuron projection maintenance / clathrin-coated pit / visual learning / cellular response to cAMP / astrocyte activation / synaptic cleft / Mitochondrial protein degradation / response to interleukin-1 / platelet alpha granule lumen / regulation of neuron apoptotic process / positive regulation of glycolytic process / learning / ionotropic glutamate receptor signaling pathway / locomotory behavior / cellular response to copper ion / endosome lumen / positive regulation of interleukin-1 beta production / central nervous system development / positive regulation of long-term synaptic potentiation / protein serine/threonine kinase binding / serine-type endopeptidase inhibitor activity / Post-translational protein phosphorylation / dendritic shaft / trans-Golgi network membrane / endocytosis / microglial cell activation / cellular response to nerve growth factor stimulus / regulation of translation / positive regulation of non-canonical NF-kappaB signal transduction / positive regulation of interleukin-6 production / positive regulation of JNK cascade / synapse organization / TAK1-dependent IKK and NF-kappa-B activation / Golgi lumen / recycling endosome / response to lead ion / cognition / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / cellular response to amyloid-beta / neuron projection development / calcium ion transport / positive regulation of inflammatory response / regulation of gene expression / positive regulation of tumor necrosis factor production
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, heparin-binding / Amyloid A4 N-terminal heparin-binding / Amyloidogenic glycoprotein, amyloid-beta peptide superfamily / Beta-amyloid peptide (beta-APP) / Amyloidogenic glycoprotein, amyloid-beta peptide ...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, heparin-binding / Amyloid A4 N-terminal heparin-binding / 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, E2 domain / E2 domain superfamily / Amyloidogenic glycoprotein, heparin-binding domain superfamily / 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: 2.8 Å
AuthorsYang, Y. / Arseni, D. / Zhang, W. / Huang, M. / Lovestam, S.K.A. / Schweighauser, M. / Kotecha, A. / Murzin, A.G. / Peak-Chew, S.Y. / Macdonald, J. ...Yang, Y. / Arseni, D. / Zhang, W. / Huang, M. / Lovestam, S.K.A. / Schweighauser, M. / Kotecha, A. / Murzin, A.G. / Peak-Chew, S.Y. / Macdonald, J. / Lavenir, I. / Garringer, H.J. / Gelpi, E. / Newell, K.L. / Kovacs, G.G. / Vidal, R. / Ghetti, B. / Falcon, B. / Scheres, S.H.W. / Goedert, M.
Funding support United States, 6items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom)MC_UP_1201/25 United States
Medical Research Council (MRC, United Kingdom)MC_UP_A025_1013 United States
Medical Research Council (MRC, United Kingdom)MC_U105184291 United States
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
National Institutes of Health/National Institute on Aging (NIH/NIA)RF1-AG071177 United States
CitationJournal: Science / Year: 2022
Title: Cryo-EM structures of amyloid-β 42 filaments from human brains.
Authors: Yang Yang / Diana Arseni / Wenjuan Zhang / Melissa Huang / Sofia Lövestam / Manuel Schweighauser / Abhay Kotecha / Alexey G Murzin / Sew Y Peak-Chew / Jennifer Macdonald / Isabelle Lavenir ...Authors: Yang Yang / Diana Arseni / Wenjuan Zhang / Melissa Huang / Sofia Lövestam / Manuel Schweighauser / Abhay Kotecha / Alexey G Murzin / Sew Y Peak-Chew / Jennifer Macdonald / Isabelle Lavenir / Holly J Garringer / Ellen Gelpi / Kathy L Newell / Gabor G Kovacs / Ruben Vidal / Bernardino Ghetti / Benjamin Ryskeldi-Falcon / Sjors H W Scheres / Michel Goedert /
Abstract: Filament assembly of amyloid-β peptides ending at residue 42 (Aβ42) is a central event in Alzheimer’s disease. Here, we report the cryo–electron microscopy (cryo-EM) structures of Aβ42 ...Filament assembly of amyloid-β peptides ending at residue 42 (Aβ42) is a central event in Alzheimer’s disease. Here, we report the cryo–electron microscopy (cryo-EM) structures of Aβ42 filaments from human brains. Two structurally related S-shaped protofilament folds give rise to two types of filaments. Type I filaments were found mostly in the brains of individuals with sporadic Alzheimer’s disease, and type II filaments were found in individuals with familial Alzheimer’s disease and other conditions. The structures of Aβ42 filaments from the brain differ from those of filaments assembled in vitro. By contrast, in knock-in mice, Aβ42 deposits were made of type II filaments. Knowledge of Aβ42 filament structures from human brains may lead to the development of inhibitors of assembly and improved imaging agents.
History
DepositionNov 1, 2021Deposition site: PDBE / Processing site: PDBE
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Assembly

Deposited unit
A: Amyloid-beta precursor protein
B: Amyloid-beta precursor protein
C: Amyloid-beta precursor protein
D: Amyloid-beta precursor protein
E: Amyloid-beta precursor protein
F: Amyloid-beta precursor protein
G: Amyloid-beta precursor protein
H: Amyloid-beta precursor protein
I: Amyloid-beta precursor protein
J: Amyloid-beta precursor protein


Theoretical massNumber of molelcules
Total (without water)45,20120
Polymers45,20110
Non-polymers010
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area20800 Å2
ΔGint-85 kcal/mol
Surface area11850 Å2

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Components

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


Mass: 4520.087 Da / Num. of mol.: 10 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P05067
#2: Chemical
ChemComp-UNX / UNKNOWN ATOM OR ION


Num. of mol.: 10 / Source method: obtained synthetically / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY
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: beta-amyloid 42 filaments extracted from the human brain with Alzheimer's disease
Type: TISSUE / Entity ID: #1 / 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: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.18.2_3874: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: -2.9 ° / Axial rise/subunit: 4.9 Å / Axial symmetry: C2
3D reconstructionResolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 128731 / Symmetry type: HELICAL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0072290
ELECTRON MICROSCOPYf_angle_d0.7023080
ELECTRON MICROSCOPYf_dihedral_angle_d16.263310
ELECTRON MICROSCOPYf_chiral_restr0.056370
ELECTRON MICROSCOPYf_plane_restr0.003390

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