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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: 9lon | ||||||
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| タイトル | Cryo-EM structure of alpha-synuclein P8 fibril | ||||||
要素 | Alpha-synuclein | ||||||
キーワード | PROTEIN FIBRIL / amyloid | ||||||
| 機能・相同性 | 機能・相同性情報PKR-mediated signaling / regulation of neurotransmitter secretion / platelet alpha granule membrane / membrane organization / 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 / response to desipramine ...PKR-mediated signaling / regulation of neurotransmitter secretion / platelet alpha granule membrane / membrane organization / 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 / response to desipramine / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / arachidonate binding / negative regulation of chaperone-mediated autophagy / regulation of reactive oxygen species metabolic process / positive regulation of protein localization to cell periphery / mitochondrial membrane organization / negative regulation of exocytosis / regulation of glutamate secretion / dopamine biosynthetic process / response to iron(II) ion / positive regulation of neurotransmitter secretion / regulation of macrophage activation / negative regulation of dopamine metabolic process / negative regulation of platelet-derived growth factor receptor signaling pathway / SNARE complex assembly / negative regulation of thrombin-activated receptor signaling pathway / regulation of locomotion / negative regulation of microtubule polymerization / positive regulation of inositol phosphate biosynthetic process / synaptic vesicle priming / regulation of norepinephrine uptake / transporter regulator activity / dopamine metabolic process / synaptic vesicle transport / protein complex oligomerization / regulation of dopamine secretion / positive regulation of receptor recycling / positive regulation of exocytosis / cuprous ion binding / mitochondrial ATP synthesis coupled electron transport / nuclear outer membrane / dynein complex binding / response to magnesium ion / synaptic vesicle exocytosis / positive regulation of endocytosis / regulation of neuronal synaptic plasticity / negative regulation of serotonin uptake / response to type II interferon / kinesin binding / cysteine-type endopeptidase inhibitor activity / regulation of presynapse assembly / positive regulation of synaptic transmission / synaptic vesicle endocytosis / alpha-tubulin binding / beta-tubulin binding / phospholipase binding / phospholipid metabolic process / behavioral response to cocaine / cellular response to fibroblast growth factor stimulus / inclusion body / Hsp70 protein binding / enzyme inhibitor activity / response to interleukin-1 / axon terminus / cytoplasmic vesicle membrane / cellular response to copper ion / positive regulation of release of sequestered calcium ion into cytosol / regulation of microtubule cytoskeleton organization / SNARE binding / adult locomotory behavior / glutathione metabolic process / protein tetramerization / excitatory postsynaptic potential / protein sequestering activity / phosphoprotein binding / microglial cell activation / ferrous iron binding / fatty acid metabolic process / synapse organization / regulation of long-term neuronal synaptic plasticity / receptor internalization / phospholipid binding / protein destabilization / tau protein binding / enzyme activator activity / terminal bouton / positive regulation of inflammatory response / synaptic vesicle / long-term synaptic potentiation / synaptic vesicle membrane / actin cytoskeleton / growth cone / presynapse / actin binding / cellular response to oxidative stress / neuron apoptotic process / cell cortex / histone binding 類似検索 - 分子機能 | ||||||
| 生物種 | ![]() | ||||||
| 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 Å | ||||||
データ登録者 | Xia, W.C. / Liu, C. | ||||||
| 資金援助 | 1件
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引用 | ジャーナル: Neuron / 年: 2025タイトル: Fibril fuzzy coat is important for α-synuclein pathological transmission activity. 著者: Yuliang Han / Juan Li / Wencheng Xia / Qintong Li / Zihan Sun / Wen Zeng / Yingxin Hu / Kelvin C Luk / Cong Liu / ShengQi Xiang / Zhuohao He / ![]() 要旨: α-synuclein transmission and propagation are hallmarks of synucleinopathies, yet the molecular mechanisms remain elusive. Using α-synuclein preformed fibrils as pathological seeds, we observed a ...α-synuclein transmission and propagation are hallmarks of synucleinopathies, yet the molecular mechanisms remain elusive. Using α-synuclein preformed fibrils as pathological seeds, we observed a gradual decline in neuronal transmission activity during serial propagation. Fibril polymorphisms were identified from the initial generation: mini-P, with higher neuronal seeding activity, and mini-S, which accelerated recombinant α-synuclein aggregation. Changes in their proportions during propagation explained the overall decline in transmission activity. Cryoelectron microscopy and solid-state nuclear magnetic resonance revealed that both fibrils shared similar core regions but differed in their fuzzy coat flexibilities. The interaction between the fuzzy coat and fibril core substantially influenced neuronal transmission, a model further supported by hydrogen/deuterium exchange mass spectrometry. A mini-P-selective antibody identified active fibril types in newly propagated brain regions in human synucleinopathies. This study highlights the fuzzy coat's pivotal role in pathological protein transmission and suggests it as a potential therapeutic target for synucleinopathies. | ||||||
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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 | 9lon.cif.gz | 74.6 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9lon.ent.gz | 54.5 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9lon.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/lo/9lon ftp://data.pdbj.org/pub/pdb/validation_reports/lo/9lon | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 63250MC ![]() 9k23C ![]() 9k24C M: このデータのモデリングに利用したマップデータ 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
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集合体
| 登録構造単位 | ![]()
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| 1 |
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要素
| #1: タンパク質 | 分子量: 14501.185 Da / 分子数: 6 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 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: Cryo-EM structure of alpha-synuclein P8 fibril / タイプ: ORGANELLE OR CELLULAR COMPONENT / Entity ID: all / 由来: NATURAL |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: ![]() |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.4 |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 急速凍結 | 凍結剤: ETHANE |
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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 / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
| 撮影 | 電子線照射量: 55 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOCONTINUUM (6k x 4k) |
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解析
| CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
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| らせん対称 | 回転角度/サブユニット: 179.58 ° / 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 | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 112926 / 対称性のタイプ: HELICAL | ||||||||||||||||||||||||
| 拘束条件 |
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