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- PDB-6xyq: Multiple system atrophy Type II-2 alpha-synuclein filament -

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Basic information

Entry
Database: PDB / ID: 6xyq
TitleMultiple system atrophy Type II-2 alpha-synuclein filament
ComponentsAlpha-synuclein
KeywordsPROTEIN FIBRIL / multiple system atrophy / alpha-synuclein filament
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 / transporter regulator activity / 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 / 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 / long-term synaptic potentiation / synapse organization / ferrous iron binding / protein destabilization / PKR-mediated signaling / tau protein binding / phospholipid binding / receptor internalization / 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 / copper ion binding / Amyloid fiber formation / 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: 3.09 Å
AuthorsSchweighauser, M. / Shi, Y. / Tarutani, A. / Kametani, F. / Murzin, A.G. / Ghetti, B. / Matsubara, T. / Tomita, T. / Ando, T. / Hasegawa, K. ...Schweighauser, M. / Shi, Y. / Tarutani, A. / Kametani, F. / Murzin, A.G. / Ghetti, B. / Matsubara, T. / Tomita, T. / Ando, T. / Hasegawa, K. / Murayama, S. / Yoshida, M. / Hasegawa, M. / Scheres, S.H.W. / Goedert, M.
Funding support United Kingdom, Japan, United States, 7items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom)MC_UP_A025_1013 United Kingdom
Medical Research Council (MRC, United Kingdom)MC_U105184291 United Kingdom
Innovative Medicines Initiative116060 United Kingdom
Japan Agency for Medical Research and Development (AMED)JP18ek0109391 Japan
Japan Agency for Medical Research and Development (AMED)JP18dm020719 Japan
National Institutes of Health/National Institute on Aging (NIH/NIA)P30AG010133 United States
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)U01NS110437 United States
CitationJournal: Nature / Year: 2020
Title: Structures of α-synuclein filaments from multiple system atrophy.
Authors: Manuel Schweighauser / Yang Shi / Airi Tarutani / Fuyuki Kametani / Alexey G Murzin / Bernardino Ghetti / Tomoyasu Matsubara / Taisuke Tomita / Takashi Ando / Kazuko Hasegawa / Shigeo ...Authors: Manuel Schweighauser / Yang Shi / Airi Tarutani / Fuyuki Kametani / Alexey G Murzin / Bernardino Ghetti / Tomoyasu Matsubara / Taisuke Tomita / Takashi Ando / Kazuko Hasegawa / Shigeo Murayama / Mari Yoshida / Masato Hasegawa / Sjors H W Scheres / Michel Goedert /
Abstract: Synucleinopathies, which include multiple system atrophy (MSA), Parkinson's disease, Parkinson's disease with dementia and dementia with Lewy bodies (DLB), are human neurodegenerative diseases. ...Synucleinopathies, which include multiple system atrophy (MSA), Parkinson's disease, Parkinson's disease with dementia and dementia with Lewy bodies (DLB), are human neurodegenerative diseases. Existing treatments are at best symptomatic. These diseases are characterized by the presence of, and believed to be caused by the formation of, filamentous inclusions of α-synuclein in brain cells. However, the structures of α-synuclein filaments from the human brain are unknown. Here, using cryo-electron microscopy, we show that α-synuclein inclusions from the brains of individuals with MSA are made of two types of filament, each of which consists of two different protofilaments. In each type of filament, non-proteinaceous molecules are present at the interface of the two protofilaments. Using two-dimensional class averaging, we show that α-synuclein filaments from the brains of individuals with MSA differ from those of individuals with DLB, which suggests that distinct conformers or strains characterize specific synucleinopathies. As is the case with tau assemblies, the structures of α-synuclein filaments extracted from the brains of individuals with MSA differ from those formed in vitro using recombinant proteins, which has implications for understanding the mechanisms of aggregate propagation and neurodegeneration in the human brain. These findings have diagnostic and potential therapeutic relevance, especially because of the unmet clinical need to be able to image filamentous α-synuclein inclusions in the human brain.
History
DepositionJan 30, 2020Deposition site: PDBE / Processing site: PDBE
Revision 1.0Feb 12, 2020Provider: repository / Type: Initial release
Revision 1.1Jun 10, 2020Group: 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.year / _citation_author.identifier_ORCID
Revision 1.2Sep 30, 2020Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.3May 22, 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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Structure visualization

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Structure viewerMolecule:
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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
G: Alpha-synuclein
H: Alpha-synuclein
I: Alpha-synuclein
J: Alpha-synuclein


Theoretical massNumber of molelcules
Total (without water)144,76110
Polymers144,76110
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area48830 Å2
ΔGint-176 kcal/mol
Surface area25630 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: 14476.108 Da / Num. of mol.: 10 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / 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: Sarkosyl-insoluble fractions from the putamen of multiple system atrophy brain
Type: TISSUE / Entity ID: all / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
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: 47.5 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: dev_3580: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: -1.34 ° / Axial rise/subunit: 4.72 Å / Axial symmetry: C1
3D reconstructionResolution: 3.09 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 93137
Details: Helical reconstruction in RELION3. The initial model was reconstructed from reference-free 2-D class averages and the resolution of the cryo-EM map was good enough to do de-novo modelling.
Symmetry type: HELICAL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0075015
ELECTRON MICROSCOPYf_angle_d0.5136785
ELECTRON MICROSCOPYf_dihedral_angle_d8.0552920
ELECTRON MICROSCOPYf_chiral_restr0.053880
ELECTRON MICROSCOPYf_plane_restr0.002845

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