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- PDB-9fh5: Cryo-EM Structure of Amyloid-beta Fibrils Carrying the Uppsala Ab... -

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Basic information

Entry
Database: PDB / ID: 9fh5
TitleCryo-EM Structure of Amyloid-beta Fibrils Carrying the Uppsala AbetaUpp(1-42)delta(19-24) Mutation - Polymorph 4
ComponentsAmyloid-beta precursor protein
KeywordsPROTEIN FIBRIL / Amyloid Fibril
Function / homology
Function and homology information


amyloid-beta complex / growth cone lamellipodium / Aggregated β-amyloid induces FXII autocatalysis / cellular response to norepinephrine stimulus / collateral sprouting in absence of injury / growth cone filopodium / hippocampal neuron apoptotic process / microglia development / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands ...amyloid-beta complex / growth cone lamellipodium / Aggregated β-amyloid induces FXII autocatalysis / cellular response to norepinephrine stimulus / collateral sprouting in absence of injury / growth cone filopodium / hippocampal neuron apoptotic process / microglia development / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands / axo-dendritic transport / Aggregated β-amyloid interacts with fibrinogen / 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 / 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 / regulation of long-term neuronal synaptic plasticity / neuronal dense core vesicle / 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 / cellular response to cAMP / visual learning / astrocyte activation / synaptic cleft / Mitochondrial protein degradation / platelet alpha granule lumen / regulation of neuron apoptotic process / positive regulation of glycolytic process / Regulation of clotting cascade / response to interleukin-1 / 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 / serine-type endopeptidase inhibitor activity / protein serine/threonine kinase binding / dendritic shaft / Post-translational protein phosphorylation / trans-Golgi network membrane / endocytosis / microglial cell activation / cellular response to nerve growth factor stimulus / 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 / regulation of translation / 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 / regulation of gene expression / calcium ion transport
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: 3.8 Å
AuthorsZielinski, M. / Peralta Reyes, F.S. / Gremer, L. / Pagnon de la Vega, M. / Roeder, C. / Heidler, T.V. / Syvaenen, S. / Willbold, D. / Sehlin, D. / Ingelsson, M. / Schroeder, G.F.
Funding support Germany, 1items
OrganizationGrant numberCountry
Helmholtz AssociationIVF Germany
CitationJournal: Acta Neuropathol Commun / Year: 2025
Title: Cryo-EM studies of amyloid-β fibrils from human and murine brains carrying the Uppsala APP mutation (Δ690-695).
Authors: Mara Zielinski / Fernanda S Peralta Reyes / Lothar Gremer / Simon Sommerhage / María Pagnon de la Vega / Christine Röder / Thomas V Heidler / Stina Syvänen / Dieter Willbold / Dag Sehlin ...Authors: Mara Zielinski / Fernanda S Peralta Reyes / Lothar Gremer / Simon Sommerhage / María Pagnon de la Vega / Christine Röder / Thomas V Heidler / Stina Syvänen / Dieter Willbold / Dag Sehlin / Martin Ingelsson / Gunnar F Schröder /
Abstract: Today, 13 intra-amyloid-β (Aβ) amyloid precursor protein (APP) gene mutations are known to cause familial Alzheimer's disease (AD). Most of them are point mutations causing an increased production ...Today, 13 intra-amyloid-β (Aβ) amyloid precursor protein (APP) gene mutations are known to cause familial Alzheimer's disease (AD). Most of them are point mutations causing an increased production or a change in the conformation of Aβ. The Uppsala APP mutation (Δ690-695 in APP, Δ19-24 in Aβ) is the first known multi-codon deletion causing autosomal dominant AD. Here, we applied cryo-electron microscopy (cryo-EM) to investigate the structure of Aβ fibrils with the Uppsala APP mutation from tg-UppSwe mouse brain tissue. Murine AβUpp(1-42) are made of two identical S-shaped protofilaments with an ordered fibril core of S8-A42. The murine Aβ fold is almost identical to previously described human type II filaments, although the amino acid sequences differ considerably. In addition, we report the cryo-EM structure of Aβ fibrils from the temporal cortex of a patient with the Uppsala APP mutation. The observed structure of the human Aβ fold closely resembles previously described type I fibrils. Structural modeling suggests that these fibrils are composed of wild-type Aβ, which implies that AβUpp may be less soluble and thus not readily accessible for cryo-EM image processing and structure determination. Additionally, from the human sample we determined the structures of tau paired helical filaments and tau straight filaments, which are identical to those found in sporadic AD cases. Finally, we present the 3D cryo-EM structures of four dominant AβUpp(1-42) fibril polymorphs, formed in vitro. All four polymorphs differ from the observed folds of Uppsala Aβ in murine and human brain tissue, respectively.
History
DepositionMay 26, 2024Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 11, 2025Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
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Revision 1.1Oct 22, 2025Group: Data collection / Database references / Category: citation / citation_author / em_admin
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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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
K: Amyloid-beta precursor protein
L: Amyloid-beta precursor protein
M: Amyloid-beta precursor protein
N: Amyloid-beta precursor protein
O: Amyloid-beta precursor protein
P: Amyloid-beta precursor protein
Q: Amyloid-beta precursor protein
R: Amyloid-beta precursor protein
S: Amyloid-beta precursor protein
T: Amyloid-beta precursor protein


Theoretical massNumber of molelcules
Total (without water)76,22720
Polymers76,22720
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein/peptide
Amyloid-beta precursor protein


Mass: 3811.330 Da / Num. of mol.: 20 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: P05067
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: Amyloid fibrils of amyloid-beta(1-42)delta(19-24) / Type: TISSUE / Entity ID: all / Source: NATURAL
Source (natural)Organism: unidentified (others)
Buffer solutionpH: 2
Details: 30% (v/v) acetonitrile (AcN), 0.1% (v/v) trifluoroacetic acid (TFA) at pH 2 (~300 uM monomer concentration)
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: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM software
IDNameVersionCategory
9PHENIX1.20.1model refinement
10ISOLDE1.7.1model refinement
14RELION33D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: -4.8 ° / Axial rise/subunit: 4.7 Å / Axial symmetry: C1
3D reconstructionResolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 133988 / Symmetry type: HELICAL

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