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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 9rzf | ||||||||||||||||||||||||||||||
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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 | ||||||||||||||||||||||||||||||
要素 | Alpha-synuclein | ||||||||||||||||||||||||||||||
キーワード | PROTEIN FIBRIL / Alpha-synuclein / Prion-like / Fibril / Paired helical filament | ||||||||||||||||||||||||||||||
| 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 | 電子顕微鏡法 / 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, A.J. / De Nuccio, F. / Mohammed, I. / Verchere, J. / Feuillie, C. / Berbon, M. ...van den Heuvel, L. / Burger, D. / Kashyrina, M. / de La Seigliere, H. / Lewis, A.J. / De Nuccio, F. / Mohammed, I. / Verchere, J. / Feuillie, C. / Berbon, M. / Arotcarena, M. / Retailleau, A. / Bezard, E. / Canron, M. / Meissner, W.G. / Loquet, A. / Bousset, L. / Poujol, C. / Nilsson, K.P.R. / Laferriere, F. / Baron, T. / Lofrumento, D.D. / 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
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 9rzf.cif.gz | 66.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9rzf.ent.gz | 48.5 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9rzf.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/rz/9rzf ftp://data.pdbj.org/pub/pdb/validation_reports/rz/9rzf | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 54402MC ![]() 9euuC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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
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集合体
| 登録構造単位 | ![]()
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要素
| #1: タンパク質 | 分子量: 6037.906 Da / 分子数: 6 / 変異: A53T / 由来タイプ: 組換発現 詳細: The fibril was purified from a mouse, this mouse model expresses a humanised version of the alpha-synuclein protein. 由来: (組換発現) Homo sapiens (ヒト) / 株: Hemizygous A53T alpha-synuclein transgenic line M83 / 遺伝子: SNCA, NACP, PARK1 / 器官: Brain / 発現宿主: ![]() 株 (発現宿主): Hemizygous A53T alpha-synuclein transgenic line M83 参照: UniProt: P37840 Has protein modification | N | |
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-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
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| EM実験 | 試料の集合状態: FILAMENT / 3次元再構成法: らせん対称体再構成法 |
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試料調製
| 構成要素 | 名称: Alpha-synuclein fibril purified from the brain of a 1B-injected M83+/- mouse タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT | |||||||||||||||
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| 分子量 | 値: 14 kDa/nm / 実験値: NO | |||||||||||||||
| 由来(天然) | 生物種: Homo sapiens (ヒト) / 株: Hemizygous A53T alpha-synuclein transgenic line M83 | |||||||||||||||
| 由来(組換発現) | 生物種: ![]() | |||||||||||||||
| 緩衝液 | pH: 7.4 / 詳細: 50 mM Tris-HCl, 150 mM NaCl, pH7.4 | |||||||||||||||
| 緩衝液成分 |
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| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: Sarkosyl-insoluble fraction | |||||||||||||||
| 試料支持 | 詳細: The grids were not glow-discharged / グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil | |||||||||||||||
| 急速凍結 | 装置: LEICA EM GP / 凍結剤: ETHANE / 湿度: 80 % / 凍結前の試料温度: 293 K |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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| 顕微鏡 | モデル: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 165000 X / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 800 nm / Cs: 2.7 mm / C2レンズ絞り径: 50 µm / アライメント法: COMA FREE |
| 試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
| 撮影 | 平均露光時間: 3.04 sec. / 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 撮影したグリッド数: 2 / 実像数: 42812 詳細: Images were collected in movie-mode with a total of 936 frames per movie. |
| 電子光学装置 | エネルギーフィルター名称: TFS Selectris X |
| 画像スキャン | 横: 4096 / 縦: 4096 |
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解析
| EMソフトウェア |
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| 画像処理 | 詳細: A total of 40 movies was selected for manual picking | |||||||||||||||||||||||||||||||||||||||||||||
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||
| らせん対称 | 回転角度/サブユニット: 179.55 ° / 軸方向距離/サブユニット: 2.4 Å / らせん対称軸の対称性: C1 | |||||||||||||||||||||||||||||||||||||||||||||
| 粒子像の選択 | 選択した粒子像数: 3556 詳細: Particles selected by manual picking of fibril start and end points | |||||||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1913 / 対称性のタイプ: HELICAL | |||||||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL 詳細: A rigid-body fit was done using ChimeraX and a subsequent jiggle fit and all-atom refinement was done in Coot. | |||||||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | 3D fitting-ID: 1 / Accession code: 9EUU / Initial refinement model-ID: 1 / PDB-ID: 9EUU / Source name: PDB / タイプ: experimental model
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| 精密化 | 最高解像度: 3.8 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | |||||||||||||||||||||||||||||||||||||||||||||
| 拘束条件 |
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ムービー
コントローラー
万見について




Homo sapiens (ヒト)
スイス,
フランス, 2件
引用




PDBj


FIELD EMISSION GUN