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- EMDB-46422: Type Ic amyloid-beta 42 filaments in dominantly inherited Alzheim... -

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Basic information

Entry
Database: EMDB / ID: EMD-46422
TitleType Ic amyloid-beta 42 filaments in dominantly inherited Alzheimer disease with cotton wool plaques
Map data
Sample
  • Tissue: Type Ic amyloid-beta 42
    • Protein or peptide: Amyloid-beta protein 42
KeywordsAmyloid filaments / cotton wool plaques / neurodegeneration / NEUROPEPTIDE / PROTEIN FIBRIL
Function / homology
Function and homology information


cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / regulation of synapse structure or activity / axo-dendritic transport / regulation of Wnt signaling pathway / synaptic assembly at neuromuscular junction / Formyl peptide receptors bind formyl peptides and many other ligands / signaling receptor activator activity / axon midline choice point recognition ...cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / regulation of synapse structure or activity / axo-dendritic transport / regulation of Wnt signaling pathway / synaptic assembly at neuromuscular junction / Formyl peptide receptors bind formyl peptides and many other ligands / signaling receptor activator activity / axon midline choice point recognition / smooth endoplasmic reticulum calcium ion homeostasis / astrocyte activation involved in immune response / regulation of spontaneous synaptic transmission / mating behavior / NMDA selective glutamate receptor signaling pathway / Lysosome Vesicle Biogenesis / ciliary rootlet / PTB domain binding / Golgi-associated vesicle / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / positive regulation of amyloid fibril formation / neuron remodeling / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / nuclear envelope lumen / COPII-coated ER to Golgi transport vesicle / suckling behavior / dendrite development / presynaptic active zone / modulation of excitatory postsynaptic potential / TRAF6 mediated NF-kB activation / Advanced glycosylation endproduct receptor signaling / neuromuscular process controlling balance / The NLRP3 inflammasome / transition metal ion binding / regulation of presynapse assembly / negative regulation of long-term synaptic potentiation / regulation of multicellular organism growth / negative regulation of neuron differentiation / intracellular copper ion homeostasis / ECM proteoglycans / trans-Golgi network membrane / positive regulation of T cell migration / smooth endoplasmic reticulum / spindle midzone / Purinergic signaling in leishmaniasis infection / clathrin-coated pit / protein serine/threonine kinase binding / positive regulation of chemokine production / regulation of peptidyl-tyrosine phosphorylation / forebrain development / Notch signaling pathway / neuron projection maintenance / Mitochondrial protein degradation / positive regulation of G2/M transition of mitotic cell cycle / positive regulation of protein metabolic process / positive regulation of calcium-mediated signaling / ionotropic glutamate receptor signaling pathway / positive regulation of glycolytic process / cholesterol metabolic process / response to interleukin-1 / positive regulation of mitotic cell cycle / extracellular matrix organization / axonogenesis / adult locomotory behavior / platelet alpha granule lumen / positive regulation of peptidyl-threonine phosphorylation / positive regulation of interleukin-1 beta production / dendritic shaft / learning / cognition / positive regulation of long-term synaptic potentiation / central nervous system development / endosome lumen / locomotory behavior / astrocyte activation / Post-translational protein phosphorylation / positive regulation of JNK cascade / microglial cell activation / synapse organization / serine-type endopeptidase inhibitor activity / regulation of long-term neuronal synaptic plasticity / TAK1-dependent IKK and NF-kappa-B activation / visual learning / neuromuscular junction / recycling endosome / positive regulation of interleukin-6 production / Golgi lumen / neuron cellular homeostasis / positive regulation of inflammatory response / positive regulation of non-canonical NF-kappaB signal transduction / endocytosis / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / cellular response to amyloid-beta / positive regulation of tumor necrosis factor production / G2/M transition of mitotic cell cycle / cell-cell junction / neuron projection development / Platelet degranulation / apical part of cell / synaptic vesicle
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. / Amyloid precursor protein (APP) E1 domain profile. / Amyloid precursor protein (APP) E2 domain profile. / 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 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)
Methodhelical reconstruction / cryo EM / Resolution: 2.6 Å
AuthorsHoq MR / Vago FS / Ozcan KA / Bharath SR
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)5U01 NS1104377 United States
National Institutes of Health/National Institute on Aging (NIH/NIA)1RF1 AG071177 United States
CitationJournal: Acta Neuropathol / Year: 2024
Title: Cryo-EM structures of cotton wool plaques' amyloid β and of tau filaments in dominantly inherited Alzheimer disease.
Authors: Md Rejaul Hoq / Anllely Fernandez / Frank S Vago / Grace I Hallinan / Sakshibeedu R Bharath / Daoyi Li / Kadir A Ozcan / Holly J Garringer / Wen Jiang / Ruben Vidal / Bernardino Ghetti /
Abstract: Cotton wool plaques (CWPs) have been described as features of the neuropathologic phenotype of dominantly inherited Alzheimer disease (DIAD) caused by some missense and deletion mutations in the ...Cotton wool plaques (CWPs) have been described as features of the neuropathologic phenotype of dominantly inherited Alzheimer disease (DIAD) caused by some missense and deletion mutations in the presenilin 1 (PSEN1) gene. CWPs are round, eosinophilic amyloid-β (Aβ) plaques that lack an amyloid core and are recognizable, but not fluorescent, in Thioflavin S (ThS) preparations. Amino-terminally truncated and post-translationally modified Aβ peptide species are the main component of CWPs. Tau immunopositive neurites may be present in CWPs. In addition, neurofibrillary tangles coexist with CWPs. Herein, we report the structure of Aβ and tau filaments isolated from brain tissue of individuals affected by DIAD caused by the PSEN1 V261I and A431E mutations, with the CWP neuropathologic phenotype. CWPs are predominantly composed of type I Aβ filaments present in two novel arrangements, type Ic and type Id; additionally, CWPs contain type I and type Ib Aβ filaments. Tau filaments have the AD fold, which has been previously reported in sporadic AD and DIAD. The formation of type Ic and type Id Aβ filaments may be the basis for the phenotype of CWPs. Our data are relevant for the development of PET imaging methodologies to best detect CWPs in DIAD.
History
DepositionAug 5, 2024-
Header (metadata) releaseOct 2, 2024-
Map releaseOct 2, 2024-
UpdateOct 2, 2024-
Current statusOct 2, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_46422.png

Downloads & links

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Map

FileDownload / File: emd_46422.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

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AxesZ (Sec.)Y (Row.)X (Col.)
1.05 Å/pix.
x 280 pix.
= 295.12 Å		1.05 Å/pix.
x 280 pix.
= 295.12 Å		1.05 Å/pix.
x 280 pix.
= 295.12 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.054 Å
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Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 4.0
Minimum - Maximum-13.941324 - 21.056999999999999
Average (Standard dev.)-0.000000000010786 (±1.0)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions280280280
Spacing280280280
CellA=B=C: 295.12 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_46422_msk_1.map
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Half map: #2

Fileemd_46422_half_map_1.map
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Half map: #1

Fileemd_46422_half_map_2.map
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Sample components

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Entire : Type Ic amyloid-beta 42

EntireName: Type Ic amyloid-beta 42
Components
  • Tissue: Type Ic amyloid-beta 42
    • Protein or peptide: Amyloid-beta protein 42

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Supramolecule #1: Type Ic amyloid-beta 42

SupramoleculeName: Type Ic amyloid-beta 42 / type: tissue / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Amyloid-beta protein 42

MacromoleculeName: Amyloid-beta protein 42 / type: protein_or_peptide / ID: 1 / Number of copies: 20 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 3.560128 KDa
SequenceString:
GYEVHHQKLV FFAEDVGSNK GAIIGLMVGG VVIA

UniProtKB: Amyloid-beta precursor protein

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Experimental details

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Structure determination

Methodcryo EM
Processinghelical reconstruction
Aggregation statefilament

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Sample preparation

BufferpH: 7.4
Component:
ConcentrationFormulaName
20.0 mMC4H12ClNO3Tris-HCl
100.0 mMNaClsodium chloride
VitrificationCryogen name: ETHANE / Instrument: GATAN CRYOPLUNGE 3

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Detector mode: COUNTING / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Number grids imaged: 2 / Number real images: 23764 / Average exposure time: 3.21 sec. / Average electron dose: 57.79 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 81000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Helical parameters - Δz: 2.39 Å
Applied symmetry - Helical parameters - Δ&Phi: 179.44 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 4.0.1) / Number images used: 30211
Startup modelType of model: INSILICO MODEL
Final angle assignmentType: NOT APPLICABLE / Software - Name: RELION (ver. 4.0.1)
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementSpace: REAL / Protocol: AB INITIO MODEL
Output model

PDB-9czn:
Type Ic amyloid-beta 42 filaments in dominantly inherited Alzheimer disease with cotton wool plaques

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