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- EMDB-30648: Cryo-EM structure of the hE46K cross-seeded mWT alpha-synuclein fibril -
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基本情報
登録情報 | データベース: EMDB / ID: EMD-30648 | |||||||||
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タイトル | Cryo-EM structure of the hE46K cross-seeded mWT alpha-synuclein fibril | |||||||||
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機能・相同性 | ![]() PKR-mediated signaling / regulation of neurotransmitter secretion / platelet alpha granule membrane / membrane organization / neurotransmitter secretion / synaptic transmission, dopaminergic / neutral lipid metabolic process / regulation of acyl-CoA biosynthetic process / negative regulation of dopamine uptake involved in synaptic transmission / negative regulation of norepinephrine uptake ...PKR-mediated signaling / regulation of neurotransmitter secretion / platelet alpha granule membrane / membrane organization / neurotransmitter secretion / synaptic transmission, dopaminergic / 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 / 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 / arachidonate binding / response to iron(II) ion / regulation of reactive oxygen species metabolic process / SNARE complex assembly / positive regulation of neurotransmitter secretion / dopamine biosynthetic process / transporter regulator activity / regulation of locomotion / mitochondrial ATP synthesis coupled electron transport / regulation of macrophage activation / positive regulation of inositol phosphate biosynthetic process / synaptic vesicle priming / negative regulation of microtubule polymerization / synaptic vesicle transport / positive regulation of receptor recycling / dynein complex binding / regulation of dopamine secretion / negative regulation of thrombin-activated receptor signaling pathway / dopamine metabolic process / protein complex oligomerization / cuprous ion binding / positive regulation of exocytosis / response to magnesium ion / positive regulation of endocytosis / kinesin binding / regulation of neuronal synaptic plasticity / synaptic vesicle endocytosis / cysteine-type endopeptidase inhibitor activity / negative regulation of serotonin uptake / regulation of presynapse assembly / response to type II interferon / alpha-tubulin binding / positive regulation of synaptic transmission / inclusion body / phospholipid metabolic process / cellular response to copper ion / axon terminus / 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 / 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 / phospholipid binding / receptor internalization / tau protein binding / long-term synaptic potentiation / positive regulation of inflammatory response / synaptic vesicle membrane / actin cytoskeleton / actin binding / growth cone / cell cortex / cellular response to oxidative stress / neuron apoptotic process / chemical synaptic transmission / negative regulation of neuron apoptotic process / response to lipopolysaccharide / histone binding / cytoskeleton / oxidoreductase activity / postsynapse / copper ion binding / response to xenobiotic stimulus / neuronal cell body / synapse / calcium ion binding / perinuclear region of cytoplasm / magnesium ion binding / protein-containing complex / mitochondrion / extracellular space 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() | |||||||||
手法 | らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 4.5 Å | |||||||||
![]() | Long HF / Sun YP / Liu C | |||||||||
![]() | ![]() タイトル: Wild-type α-synuclein inherits the structure and exacerbated neuropathology of E46K mutant fibril strain by cross-seeding. 著者: 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 / ![]() 要旨: 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. | |||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
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-関連構造データ
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「今月の分子」の関連する項目 |
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ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
-全体 : the hE46K cross-seeded mWT alpha-synuclein fibril
全体 | 名称: the hE46K cross-seeded mWT alpha-synuclein fibril |
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要素 |
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-超分子 #1: the hE46K cross-seeded mWT alpha-synuclein fibril
超分子 | 名称: the hE46K cross-seeded mWT alpha-synuclein fibril / タイプ: organelle_or_cellular_component / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() ![]() |
組換発現 | 生物種: ![]() ![]() |
-分子 #1: Alpha-synuclein
分子 | 名称: Alpha-synuclein / タイプ: protein_or_peptide / ID: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MDVFMKGLSK AKEGVVAAAE KTKQGVAEAA GKTKEGVLYV GSKTKEGVVH GVTTVAEKTK EQVTNVGGA VVTGVTAVAQ KTVEGAGNIA AATGFVKKDQ MGKGEEGYPQ EGILEDMPVD P GSEAYEMP SEEGYQDYEP EA |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | らせん対称体再構成法 |
試料の集合状態 | filament |
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試料調製
緩衝液 | pH: 7.4 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 35.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |