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Yorodumi- EMDB-30269: Cryo-EM structure of the hE46K cross-seeded hWT alpha-synuclein fibril -
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Basic information
| Entry | Database: EMDB / ID: EMD-30269 | |||||||||
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| Title | Cryo-EM structure of the hE46K cross-seeded hWT alpha-synuclein fibril | |||||||||
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Keywords | amyloid fibril / PROTEIN FIBRIL | |||||||||
| Function / homology | Function and homology informationnegative 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 / positive regulation of protein localization to cell periphery / negative regulation of exocytosis / negative regulation of platelet-derived growth factor receptor signaling pathway / regulation of glutamate secretion / dopamine biosynthetic process / response to iron(II) ion / negative regulation of thrombin-activated receptor signaling pathway / SNARE complex assembly / positive regulation of neurotransmitter secretion / negative regulation of dopamine metabolic process / regulation of macrophage activation / positive regulation of inositol phosphate biosynthetic process / regulation of locomotion / negative regulation of microtubule polymerization / regulation of norepinephrine uptake / synaptic vesicle transport / synaptic vesicle priming / transporter regulator activity / protein kinase inhibitor activity / dopamine uptake involved in synaptic transmission / regulation of dopamine secretion / mitochondrial ATP synthesis coupled electron transport / positive regulation of receptor recycling / dynein complex binding / cuprous ion binding / nuclear outer membrane / response to magnesium ion / positive regulation of exocytosis / synaptic vesicle exocytosis / positive regulation of endocytosis / synaptic vesicle endocytosis / kinesin binding / 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 / cellular response to fibroblast growth factor stimulus / phospholipid metabolic process / inclusion body / cellular response to epinephrine stimulus / Hsp70 protein binding / enzyme inhibitor activity / response to interleukin-1 / axon terminus / 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 / protein tetramerization / phosphoprotein binding / microglial cell activation / ferrous iron binding / fatty acid metabolic process / synapse organization / PKR-mediated signaling / regulation of long-term neuronal synaptic plasticity / phospholipid binding / receptor internalization / protein destabilization / tau protein binding / terminal bouton / positive regulation of inflammatory response / long-term synaptic potentiation / 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 / amyloid fibril formation / chemical synaptic transmission / negative regulation of neuron apoptotic process / molecular adaptor activity / mitochondrial outer membrane / oxidoreductase activity Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | helical reconstruction / cryo EM / Resolution: 3.8 Å | |||||||||
Authors | Sun YP / Zhao K | |||||||||
Citation | Journal: Proc Natl Acad Sci U S A / Year: 2021Title: Wild-type α-synuclein inherits the structure and exacerbated neuropathology of E46K mutant fibril strain by cross-seeding. Authors: Houfang Long / Weitong Zheng / Yang Liu / Yunpeng Sun / Kun Zhao / Zhenying Liu / Wencheng Xia / Shiran Lv / Zhengtao Liu / Dan Li / Kai-Wen He / Cong Liu / ![]() Abstract: Heterozygous point mutations of α-synuclein (α-syn) have been linked to the early onset and rapid progression of familial Parkinson's diseases (fPD). However, the interplay between hereditary ...Heterozygous point mutations of α-synuclein (α-syn) have been linked to the early onset and rapid progression of familial Parkinson's diseases (fPD). However, the interplay between hereditary mutant and wild-type (WT) α-syn and its role in the exacerbated pathology of α-syn in fPD progression are poorly understood. Here, we find that WT mice inoculated with the human E46K mutant α-syn fibril (hE46K) strain develop early-onset motor deficit and morphologically different α-syn aggregation compared with those inoculated with the human WT fibril (hWT) strain. By using cryo-electron microscopy, we reveal at the near-atomic level that the hE46K strain induces both human and mouse WT α-syn monomers to form the fibril structure of the hE46K strain. Moreover, the induced hWT strain inherits most of the pathological traits of the hE46K strain as well. Our work suggests that the structural and pathological features of mutant strains could be propagated by the WT α-syn in such a way that the mutant pathology would be amplified in fPD. | |||||||||
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Structure visualization
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
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Downloads & links
-EMDB archive
| Map data | emd_30269.map.gz | 5.8 MB | EMDB map data format | |
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| Header (meta data) | emd-30269-v30.xml emd-30269.xml | 9.1 KB 9.1 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_30269_fsc.xml | 8 KB | Display | FSC data file |
| Images | emd_30269.png | 136.4 KB | ||
| Filedesc metadata | emd-30269.cif.gz | 4.7 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-30269 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-30269 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7c1dMC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_30269.map.gz / Format: CCP4 / Size: 42.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.356 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : the hE46K cross-seeded hWT alpha-synuclein fibril
| Entire | Name: the hE46K cross-seeded hWT alpha-synuclein fibril |
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| Components |
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-Supramolecule #1: the hE46K cross-seeded hWT alpha-synuclein fibril
| Supramolecule | Name: the hE46K cross-seeded hWT alpha-synuclein fibril / type: organelle_or_cellular_component / ID: 1 / Parent: 0 / Macromolecule list: all |
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| Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Alpha-synuclein
| Macromolecule | Name: Alpha-synuclein / type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 14.476108 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MDVFMKGLSK AKEGVVAAAE KTKQGVAEAA GKTKEGVLYV GSKTKEGVVH GVATVAEKTK EQVTNVGGAV VTGVTAVAQK TVEGAGSIA AATGFVKKDQ LGKNEEGAPQ EGILEDMPVD PDNEAYEMPS EEGYQDYEPE A UniProtKB: Alpha-synuclein |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | helical reconstruction |
| Aggregation state | filament |
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Sample preparation
| Buffer | pH: 7.4 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 35.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Keywords
Homo sapiens (human)
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