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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||
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| タイトル | Structure of in-vivo formed alpha-synuclein fibrils purified from a M83+/- mouse brain injected with recombinant 1B fibrils | |||||||||
マップデータ | Postprocessed EM map | |||||||||
試料 |
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キーワード | Alpha-synuclein / Prion-like / Fibril / Paired helical filament / PROTEIN FIBRIL | |||||||||
| 機能・相同性 | 機能・相同性情報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 / regulation of macrophage activation / positive regulation of inositol phosphate biosynthetic process / 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 / regulation of dopamine secretion / dynein complex binding / mitochondrial ATP synthesis coupled electron transport / 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 / growth cone / actin binding / cellular response to oxidative stress / neuron apoptotic process / cell cortex / response to lipopolysaccharide / histone binding / microtubule binding / chemical synaptic transmission / molecular adaptor activity / amyloid fibril formation / negative regulation of neuron apoptotic process / mitochondrial outer membrane / oxidoreductase activity 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||
| 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: 3.8 Å | |||||||||
データ登録者 | van den Heuvel L / Burger D / Kashyrina M / de La Seigliere H / Lewis AJ / De Nuccio F / Mohammed I / Verchere J / Feuillie C / Berbon M ...van den Heuvel L / Burger D / Kashyrina M / de La Seigliere H / Lewis AJ / De Nuccio F / Mohammed I / Verchere J / Feuillie C / Berbon M / Arotcarena M / Retailleau A / Bezard E / Canron M / Meissner WG / Loquet A / Bousset L / Poujol C / Nilsson KPR / Laferriere F / Baron T / Lofrumento DD / De Giorgi F / Stahlberg H / Ichas F | |||||||||
| 資金援助 | スイス, フランス, 2件
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引用 | ジャーナル: Nature / 年: 2025タイトル: Synthetic α-synuclein fibrils replicate in mice causing MSA-like pathology. 著者: Domenic Burger / Marianna Kashyrina / Lukas van den Heuvel / Hortense de La Seiglière / Amanda J Lewis / Francesco De Nuccio / Inayathulla Mohammed / Jérémy Verchère / Cécile Feuillie / ...著者: Domenic Burger / Marianna Kashyrina / Lukas van den Heuvel / Hortense de La Seiglière / Amanda J Lewis / Francesco De Nuccio / Inayathulla Mohammed / Jérémy Verchère / Cécile Feuillie / Mélanie Berbon / Marie-Laure Arotcarena / Aude Retailleau / Erwan Bezard / Marie-Hélène Canron / Wassilios G Meissner / Antoine Loquet / Luc Bousset / Christel Poujol / K Peter R Nilsson / Florent Laferrière / Thierry Baron / Dario Domenico Lofrumento / Francesca De Giorgi / Henning Stahlberg / François Ichas / ![]() 要旨: Multiple-system atrophy (MSA) is a rapidly progressive neurodegenerative disease of unknown cause, typically affecting individuals aged 50-60 years and leading to death within a decade. It is ...Multiple-system atrophy (MSA) is a rapidly progressive neurodegenerative disease of unknown cause, typically affecting individuals aged 50-60 years and leading to death within a decade. It is characterized by glial cytoplasmic inclusions (GCIs) composed of fibrillar α-synuclein (aSyn), the formation of which shows parallels with prion propagation. While fibrils extracted from brains of individuals with MSA have been structurally characterized, their ability to replicate in a protein-only manner has been questioned, and their ability to induce GCIs in vivo remains unexplored. By contrast, the synthetic fibril strain 1B, assembled from recombinant human aSyn, self-replicates in vitro and induces GCIs in mice-suggesting direct relevance to MSA-but lacks scrutiny at the atomic scale. Here we report high-resolution structural analyses of 1B fibrils and of fibrils extracted from diseased mice injected with 1B that developed GCIs (1B). We show in vivo that conformational templating enables fibril strain replication, resulting in MSA-like inclusion pathology. Notably, the structures of 1B and 1B are highly similar and mimic the fold of aSyn observed in one protofilament of fibrils isolated from patients with MSA. Moreover, reinjection of crude mouse brain homogenates containing 1B into new mice reproduces the same MSA-like pathology induced by the parent synthetic seed 1B. Our findings identify 1B as a synthetic pathogen capable of self-replication in vivo and reveal structural features of 1B and 1B that may underlie MSA pathology, offering insights for therapeutic strategies. | |||||||||
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_54402.map.gz | 14.4 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-54402-v30.xml emd-54402.xml | 33.3 KB 33.3 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_54402_fsc.xml | 14.1 KB | 表示 | FSCデータファイル |
| 画像 | emd_54402.png | 109.7 KB | ||
| マスクデータ | emd_54402_msk_1.map | 244.1 MB | マスクマップ | |
| Filedesc metadata | emd-54402.cif.gz | 8 KB | ||
| その他 | emd_54402_additional_1.map.gz emd_54402_half_map_1.map.gz emd_54402_half_map_2.map.gz | 12.1 MB 194.9 MB 194.8 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-54402 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-54402 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 9rzfMC ![]() 9euuC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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マップ
| ファイル | ダウンロード / ファイル: emd_54402.map.gz / 形式: CCP4 / 大きさ: 244.1 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 注釈 | Postprocessed EM map | ||||||||||||||||||||||||||||||||||||
| 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: 1.464 Å | ||||||||||||||||||||||||||||||||||||
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
-マスク #1
| ファイル | emd_54402_msk_1.map | ||||||||||||
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| 密度ヒストグラム |
-追加マップ: Helically symmetrized EM map
| ファイル | emd_54402_additional_1.map | ||||||||||||
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| 注釈 | Helically symmetrized EM map | ||||||||||||
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| 密度ヒストグラム |
-ハーフマップ: Half map 2 of refinement (unfiltered)
| ファイル | emd_54402_half_map_1.map | ||||||||||||
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| 注釈 | Half map 2 of refinement (unfiltered) | ||||||||||||
| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: Half map 1 of refinement (unfiltered)
| ファイル | emd_54402_half_map_2.map | ||||||||||||
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| 注釈 | Half map 1 of refinement (unfiltered) | ||||||||||||
| 投影像・断面図 |
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| 密度ヒストグラム |
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試料の構成要素
-全体 : Alpha-synuclein fibril purified from the brain of a 1B-injected M...
| 全体 | 名称: Alpha-synuclein fibril purified from the brain of a 1B-injected M83+/- mouse |
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| 要素 |
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-超分子 #1: Alpha-synuclein fibril purified from the brain of a 1B-injected M...
| 超分子 | 名称: Alpha-synuclein fibril purified from the brain of a 1B-injected M83+/- mouse タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) / 株: Hemizygous A53T alpha-synuclein transgenic line M83 |
| 分子量 | 理論値: 14 kDa/nm |
-分子 #1: Alpha-synuclein
| 分子 | 名称: Alpha-synuclein / タイプ: protein_or_peptide / ID: 1 詳細: The fibril was purified from a mouse, this mouse model expresses a humanised version of the alpha-synuclein protein. コピー数: 6 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) / 株: Hemizygous A53T alpha-synuclein transgenic line M83 / 器官: Brain |
| 分子量 | 理論値: 6.037906 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: VLYVGSKTKE GVVHGVTTVA EKTKEQVTNV GGAVVTGVTA VAQKTVEGAG SIAAATGFVK K UniProtKB: Alpha-synuclein |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 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 構成要素:
詳細: 50 mM Tris-HCl, 150 mM NaCl, pH7.4 | |||||||||
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| グリッド | モデル: Quantifoil / 材質: GOLD / メッシュ: 300 / 支持フィルム - #0 - Film type ID: 1 / 支持フィルム - #0 - 材質: CARBON / 支持フィルム - #0 - トポロジー: HOLEY ARRAY / 支持フィルム - #0 - Film thickness: 12 / 支持フィルム - #1 - Film type ID: 2 / 支持フィルム - #1 - 材質: CARBON / 支持フィルム - #1 - トポロジー: CONTINUOUS / 支持フィルム - #1 - Film thickness: 5 / 詳細: The grids were not glow-discharged | |||||||||
| 凍結 | 凍結剤: ETHANE / チャンバー内湿度: 80 % / チャンバー内温度: 293 K / 装置: LEICA EM GP | |||||||||
| 詳細 | Sarkosyl-insoluble fraction |
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電子顕微鏡法
| 顕微鏡 | TFS KRIOS |
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| 特殊光学系 | エネルギーフィルター - 名称: TFS Selectris X |
| 撮影 | フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) デジタル化 - サイズ - 横: 4096 pixel / デジタル化 - サイズ - 縦: 4096 pixel / 撮影したグリッド数: 2 / 実像数: 42812 / 平均露光時間: 3.04 sec. / 平均電子線量: 50.0 e/Å2 詳細: Images were collected in movie-mode with a total of 936 frames per movie. |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | C2レンズ絞り径: 50.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.2 µm / 最小 デフォーカス(公称値): 0.8 µm / 倍率(公称値): 165000 |
| 試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
-原子モデル構築 1
| 初期モデル |
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| 詳細 | A rigid-body fit was done using ChimeraX and a subsequent jiggle fit and all-atom refinement was done in Coot. | ||||||
| 精密化 | 空間: REAL / プロトコル: FLEXIBLE FIT | ||||||
| 得られたモデル | ![]() PDB-9rzf: |
ムービー
コントローラー
万見について




キーワード
Homo sapiens (ヒト)
データ登録者
スイス,
フランス, 2件
引用




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Y (Row.)
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FIELD EMISSION GUN

