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- PDB-7xo1: Major polymorph in alpha-synuclein fibril seeded by cerebrospinal... -

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Basic information

Entry
Database: PDB / ID: 7xo1
TitleMajor polymorph in alpha-synuclein fibril seeded by cerebrospinal fluid from a mid-to-late stage (mid-PD-1) Parkinson's disease patient
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 / response to desipramine / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber ...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 / response to desipramine / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / regulation of synaptic vesicle recycling / negative regulation of chaperone-mediated autophagy / mitochondrial membrane organization / 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 / dopamine biosynthetic process / response to iron(II) ion / SNARE complex assembly / regulation of locomotion / positive regulation of neurotransmitter secretion / negative regulation of dopamine metabolic process / positive regulation of inositol phosphate biosynthetic process / regulation of macrophage activation / regulation of norepinephrine uptake / negative regulation of microtubule polymerization / synaptic vesicle transport / transporter regulator activity / synaptic vesicle priming / dopamine uptake involved in synaptic transmission / protein kinase inhibitor activity / mitochondrial ATP synthesis coupled electron transport / regulation of dopamine secretion / dynein complex binding / negative regulation of thrombin-activated receptor signaling pathway / positive regulation of receptor recycling / cuprous ion binding / nuclear outer membrane / response to magnesium ion / positive regulation of endocytosis / positive regulation of exocytosis / synaptic vesicle exocytosis / kinesin binding / synaptic vesicle endocytosis / enzyme inhibitor activity / cysteine-type endopeptidase inhibitor activity / negative regulation of serotonin uptake / response to type II interferon / regulation of presynapse assembly / alpha-tubulin binding / beta-tubulin binding / phospholipase binding / behavioral response to cocaine / supramolecular fiber organization / phospholipid metabolic process / cellular response to fibroblast growth factor stimulus / inclusion body / axon terminus / Hsp70 protein binding / cellular response to epinephrine stimulus / response to interleukin-1 / regulation of microtubule cytoskeleton organization / cellular response to copper ion / positive regulation of release of sequestered calcium ion into cytosol / adult locomotory behavior / SNARE binding / excitatory postsynaptic potential / protein tetramerization / phosphoprotein binding / microglial cell activation / ferrous iron binding / fatty acid metabolic process / regulation of long-term neuronal synaptic plasticity / synapse organization / protein destabilization / PKR-mediated signaling / phospholipid binding / receptor internalization / tau protein binding / long-term synaptic potentiation / terminal bouton / positive regulation of inflammatory response / synaptic vesicle membrane / actin cytoskeleton / actin binding / growth cone / cellular response to oxidative stress / neuron apoptotic process / cell cortex / histone binding / response to lipopolysaccharide / microtubule binding / molecular adaptor activity / chemical synaptic transmission / amyloid fibril formation / negative regulation of neuron apoptotic process / mitochondrial outer membrane / oxidoreductase activity
Similarity search - Function
Synuclein / Alpha-synuclein / Synuclein
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3 Å
AuthorsFan, Y. / Sun, Y.P. / Wang, J. / Liu, C.
Funding support China, 8items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32170683 China
National Natural Science Foundation of China (NSFC)82188101 China
National Natural Science Foundation of China (NSFC)31872716 China
National Natural Science Foundation of China (NSFC)82171421 China
National Natural Science Foundation of China (NSFC)91949118 China
National Natural Science Foundation of China (NSFC)81771372 China
National Natural Science Foundation of China (NSFC)U1932204 China
Other government
CitationJournal: Structure / Year: 2023
Title: Conformational change of α-synuclein fibrils in cerebrospinal fluid from different clinical phases of Parkinson's disease.
Authors: Yun Fan / Yunpeng Sun / Wenbo Yu / Youqi Tao / Wencheng Xia / Yiqi Liu / Qinyue Zhao / Yilin Tang / Yimin Sun / Fengtao Liu / Qin Cao / Jianjun Wu / Cong Liu / Jian Wang / Dan Li /
Abstract: α-Synuclein (α-syn) has been shown to form various conformational fibrils associated with different synucleinopathies. But whether the conformation of α-syn fibrils changes during disease ...α-Synuclein (α-syn) has been shown to form various conformational fibrils associated with different synucleinopathies. But whether the conformation of α-syn fibrils changes during disease progression is unclear. Here, we amplified α-syn aggregates from the cerebrospinal fluid (CSF) of patients with Parkinson's disease (PD) staged in preclinical PD (pre-PD), middle- to late-stage PD (mid-PD), and late-stage PD (late-PD). Our results show that α-syn fibrils derived from the late-PD patient are most potent in inducing endogenous α-syn aggregation in primary neurons, followed by the mid-PD and pre-PD fibrils. By using cryo-electron microscopy, we further determined the high-resolution structures of the CSF-amplified fibrils. The structures exhibit remarkable differences in a minor but significant population of conformational species in different staged samples. Our work demonstrates structural and pathological differences between α-syn fibrils derived from PD patients at a spectrum of clinical stages, which suggests potential conformational transition of α-syn fibrils during the progression of PD.
History
DepositionApr 30, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Nov 30, 2022Provider: repository / Type: Initial release
Revision 1.1Jan 11, 2023Group: Database references / Category: citation / citation_author
Item: _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation_author.name
Revision 1.2Jan 25, 2023Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.year
Revision 1.3Jul 3, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond / em_admin / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

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


Theoretical massNumber of molelcules
Total (without water)86,8576
Polymers86,8576
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
d_1ens_1chain "C"
d_2ens_1chain "B"
d_3ens_1chain "E"
d_4ens_1chain "D"
d_5ens_1chain "A"
d_6ens_1chain "F"

NCS domain segments:
Dom-IDComponent-IDEns-IDBeg label comp-IDEnd label comp-IDLabel asym-IDLabel seq-ID
d_11ens_1GLYLYSF1 - 62
d_21ens_1GLYLYSD1 - 62
d_31ens_1GLYLYSE1 - 62
d_41ens_1GLYLYSC1 - 62
d_51ens_1GLYLYSB1 - 62
d_61ens_1GLYLYSA1 - 62

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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.: 6
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: Major polymorph in alpha-synuclein fibril seeded by cerebrospinal fluid from a mid-to-late stage (mid-PD-1) Parkinson's disease patient
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: 6.5
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 / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 55 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

Software
NameVersionClassification
phenix.real_space_refine1.20.1_4487refinement
PHENIX1.20.1_4487refinement
CTF correctionType: NONE
Helical symmertyAngular rotation/subunit: 179.42 ° / Axial rise/subunit: 2.41 Å / Axial symmetry: C1
3D reconstructionResolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 157360 / Symmetry type: HELICAL
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 52.05 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00212562
ELECTRON MICROSCOPYf_angle_d0.51383462
ELECTRON MICROSCOPYf_chiral_restr0.0544456
ELECTRON MICROSCOPYf_plane_restr0.0018426
ELECTRON MICROSCOPYf_dihedral_angle_d3.8457372
Refine LS restraints NCS
Ens-IDDom-IDAuth asym-IDRefine-IDTypeRms dev position (Å)
ens_1d_2FELECTRON MICROSCOPYNCS constraints4.61232871838E-13
ens_1d_3FELECTRON MICROSCOPYNCS constraints1.31479208747E-12
ens_1d_4FELECTRON MICROSCOPYNCS constraints6.00245601918E-11
ens_1d_5FELECTRON MICROSCOPYNCS constraints1.37694548268E-10
ens_1d_6FELECTRON MICROSCOPYNCS constraints2.58176003126E-13

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