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- EMDB-32636: CryoEM structure of human alpha-synuclein A53T fibril -

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Basic information

Entry
Database: EMDB / ID: EMD-32636
TitleCryoEM structure of human alpha-synuclein A53T fibril
Map dataCryoEM fibril map of human alpha synuclein A53T mutant
Sample
  • Complex: human alpha-synuclein A53T fibril
    • Protein or peptide: Alpha-synuclein
KeywordsPROTEIN 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 / mitochondrial membrane organization / regulation of synaptic vesicle recycling / negative regulation of chaperone-mediated autophagy / 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 / SNARE complex assembly / regulation of norepinephrine uptake / response to iron(II) ion / positive regulation of neurotransmitter secretion / positive regulation of inositol phosphate biosynthetic process / regulation of locomotion / negative regulation of dopamine metabolic process / regulation of macrophage activation / transporter regulator activity / negative regulation of microtubule polymerization / synaptic vesicle transport / 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 / positive regulation of receptor recycling / negative regulation of thrombin-activated receptor signaling pathway / cuprous ion binding / nuclear outer membrane / response to magnesium ion / positive regulation of endocytosis / positive regulation of exocytosis / synaptic vesicle exocytosis / kinesin binding / enzyme inhibitor activity / synaptic vesicle endocytosis / 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 / behavioral response to cocaine / phospholipase binding / 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 / SNARE binding / adult locomotory behavior / excitatory postsynaptic potential / phosphoprotein binding / protein tetramerization / microglial cell activation / fatty acid metabolic process / ferrous iron binding / 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 / mitochondrial outer membrane / negative regulation of neuron apoptotic process / oxidoreductase activity
Similarity search - Function
Synuclein / Alpha-synuclein / Synuclein
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
Methodhelical reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsWu K-P / Huang JY-C
Funding support Taiwan, 1 items
OrganizationGrant numberCountry
Academia Sinica (Taiwan) Taiwan
CitationJournal: To Be Published
Title: Calcium abolishes intramolecular long-range contacts and promotes hereditary alpha-synuclein A53T aggregation
Authors: Huang JY-C / Wu K-P
History
DepositionJan 20, 2022-
Header (metadata) releaseJan 25, 2023-
Map releaseJan 25, 2023-
UpdateJun 26, 2024-
Current statusJun 26, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_32636.png

Downloads & links

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Map

FileDownload / File: emd_32636.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationCryoEM fibril map of human alpha synuclein A53T mutant
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 280 pix.
= 232.4 Å		0.83 Å/pix.
x 280 pix.
= 232.4 Å		0.83 Å/pix.
x 280 pix.
= 232.4 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.83 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.01
Minimum - Maximum-0.03275292 - 0.05652981
Average (Standard dev.)0.0000110032815 (±0.0013133419)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions280280280
Spacing280280280
CellA=B=C: 232.4 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : human alpha-synuclein A53T fibril

EntireName: human alpha-synuclein A53T fibril
Components
  • Complex: human alpha-synuclein A53T fibril
    • Protein or peptide: Alpha-synuclein

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Supramolecule #1: human alpha-synuclein A53T fibril

SupramoleculeName: human alpha-synuclein A53T fibril / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Alpha-synuclein

MacromoleculeName: Alpha-synuclein / type: protein_or_peptide / ID: 1 / Number of copies: 10 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 6.451333 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString:
GVLYVGSKTK EGVVHGVTTV AEKTKEQVTN VGGAVVTGVT AVAQKTVEGA GSIAAATGFV KKDQL

UniProtKB: Alpha-synuclein

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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: 7.6
Component:
ConcentrationFormulaName
50.0 mMNaClsodium chloride
25.0 mMTrisTris
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 1.05 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Helical parameters - Δz: 2.37 Å
Applied symmetry - Helical parameters - Δ&Phi: 179.304 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.1) / Number images used: 46892
Segment selectionNumber selected: 175275 / Software - Name: RELION (ver. 3.1)
Startup modelType of model: NONE
Final angle assignmentType: NOT APPLICABLE
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

6cu7


Chain - Chain ID: A / Chain - Source name: PDB / Chain - Initial model type: experimental model
Output model

PDB-7wnz:
CryoEM structure of human alpha-synuclein A53T fibril

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