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- PDB-7e0f: CryoEM structure of G51D alpha-synuclein amyloid fibril -

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Basic information

Entry
Database: PDB / ID: 7e0f
TitleCryoEM structure of G51D alpha-synuclein amyloid fibril
ComponentsAlpha-synuclein
KeywordsPROTEIN FIBRIL / amyloid fibril
Function / homology
Function and homology information


negative regulation of mitochondrial electron transport, NADH to ubiquinone / : / neutral lipid metabolic process / regulation of acyl-CoA biosynthetic process / negative regulation of dopamine uptake involved in synaptic transmission / negative regulation of norepinephrine uptake / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / mitochondrial membrane organization ...negative regulation of mitochondrial electron transport, NADH to ubiquinone / : / neutral lipid metabolic process / regulation of acyl-CoA biosynthetic process / negative regulation of dopamine uptake involved in synaptic transmission / negative regulation of norepinephrine uptake / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / mitochondrial membrane organization / negative regulation of chaperone-mediated autophagy / regulation of synaptic vesicle recycling / regulation of reactive oxygen species biosynthetic process / negative regulation of platelet-derived growth factor receptor signaling pathway / positive regulation of protein localization to cell periphery / negative regulation of exocytosis / regulation of glutamate secretion / response to iron(II) ion / SNARE complex assembly / positive regulation of neurotransmitter secretion / dopamine biosynthetic process / regulation of norepinephrine uptake / transporter regulator activity / regulation of locomotion / synaptic vesicle priming / mitochondrial ATP synthesis coupled electron transport / regulation of macrophage activation / positive regulation of inositol phosphate biosynthetic process / negative regulation of microtubule polymerization / synaptic vesicle transport / positive regulation of receptor recycling / dopamine uptake involved in synaptic transmission / protein kinase inhibitor activity / dynein complex binding / regulation of dopamine secretion / negative regulation of thrombin-activated receptor signaling pathway / cuprous ion binding / positive regulation of endocytosis / positive regulation of exocytosis / response to magnesium ion / synaptic vesicle exocytosis / enzyme inhibitor activity / kinesin binding / synaptic vesicle endocytosis / regulation of presynapse assembly / response to type II interferon / cysteine-type endopeptidase inhibitor activity / negative regulation of serotonin uptake / alpha-tubulin binding / supramolecular fiber organization / inclusion body / phospholipid metabolic process / cellular response to copper ion / axon terminus / cellular response to epinephrine stimulus / Hsp70 protein binding / response to interleukin-1 / regulation of microtubule cytoskeleton organization / SNARE binding / positive regulation of release of sequestered calcium ion into cytosol / adult locomotory behavior / negative regulation of protein kinase activity / excitatory postsynaptic potential / fatty acid metabolic process / phosphoprotein binding / protein tetramerization / microglial cell activation / regulation of long-term neuronal synaptic plasticity / synapse organization / ferrous iron binding / protein destabilization / PKR-mediated signaling / phospholipid binding / receptor internalization / tau protein binding / long-term synaptic potentiation / synaptic vesicle membrane / positive regulation of inflammatory response / actin cytoskeleton / actin binding / growth cone / cell cortex / cellular response to oxidative stress / neuron apoptotic process / chemical synaptic transmission / molecular adaptor activity / negative regulation of neuron apoptotic process / response to lipopolysaccharide / histone binding / amyloid fibril formation / lysosome / oxidoreductase activity / postsynapse / transcription cis-regulatory region binding / positive regulation of apoptotic process / Amyloid fiber formation / copper ion binding / response to xenobiotic stimulus / axon / neuronal cell body
Similarity search - Function
Synuclein / Alpha-synuclein / Synuclein
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3.02 Å
AuthorsSun, Y.P. / Long, H.F. / Xia, W.C. / Liu, C.
CitationJournal: Nat Commun / Year: 2021
Title: The hereditary mutation G51D unlocks a distinct fibril strain transmissible to wild-type α-synuclein.
Authors: Yunpeng Sun / Houfang Long / Wencheng Xia / Kun Wang / Xia Zhang / Bo Sun / Qin Cao / Yaoyang Zhang / Bin Dai / Dan Li / Cong Liu /
Abstract: α-Synuclein (α-Syn) can form different fibril strains with distinct polymorphs and neuropathologies, which is associated with the clinicopathological variability in synucleinopathies. How different ...α-Synuclein (α-Syn) can form different fibril strains with distinct polymorphs and neuropathologies, which is associated with the clinicopathological variability in synucleinopathies. How different α-syn fibril strains are produced and selected under disease conditions remains poorly understood. In this study, we show that the hereditary mutation G51D induces α-syn to form a distinct fibril strain in vitro. The cryogenic electron microscopy (cryo-EM) structure of the G51D fibril strain was determined at 2.96 Å resolution. The G51D fibril displays a relatively small and extended serpentine fold distinct from other α-syn fibril structures. Moreover, we show by cryo-EM that wild-type (WT) α-syn can assembly into the G51D fibril strain via cross-seeding with G51D fibrils. Our study reveals a distinct structure of G51D fibril strain triggered by G51D mutation but feasibly adopted by both WT and G51D α-syn, which suggests the cross-seeding and strain selection of WT and mutant α-syn in familial Parkinson's disease (fPD).
History
DepositionJan 27, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 6, 2021Provider: repository / Type: Initial release
Revision 1.1Feb 23, 2022Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _citation_author.name
Revision 1.2Jun 5, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Assembly

Deposited unit
A: Alpha-synuclein
B: Alpha-synuclein
C: Alpha-synuclein
D: Alpha-synuclein
E: Alpha-synuclein
F: Alpha-synuclein


Theoretical massNumber of molelcules
Total (without water)87,2056
Polymers87,2056
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area16340 Å2
ΔGint-68 kcal/mol
Surface area13030 Å2

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Components

#1: Protein
Alpha-synuclein / Non-A beta component of AD amyloid / Non-A4 component of amyloid precursor / NACP


Mass: 14534.146 Da / Num. of mol.: 6 / Mutation: G51D
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SNCA, NACP, PARK1 / Production host: Escherichia coli (E. coli) / References: UniProt: P37840

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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: G51D alpha-synuclein amyloid fibril / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: all / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

MicroscopyModel: FEI TITAN
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 55 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: NONE
Helical symmertyAngular rotation/subunit: -179.37 ° / Axial rise/subunit: 2.43 Å / Axial symmetry: C1
3D reconstructionResolution: 3.02 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 213348 / Symmetry type: HELICAL

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