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基本情報
登録情報 | データベース: PDB / ID: 9obp | ||||||||||||||||||||||||
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タイトル | Cryo-EM structure of alpha-synuclein filaments derived from the frontal cortex of the case of atypical multiple system atrophy | ||||||||||||||||||||||||
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![]() | PROTEIN FIBRIL / homo-dimer / asymmetric / filaments / multiple system atrophy / Lewy body dementia | ||||||||||||||||||||||||
機能・相同性 | ![]() 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 / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / mitochondrial membrane organization ...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 / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / mitochondrial membrane organization / regulation of synaptic vesicle recycling / negative regulation of chaperone-mediated autophagy / 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 / response to iron(II) ion / SNARE complex assembly / positive regulation of neurotransmitter secretion / dopamine biosynthetic process / regulation of norepinephrine uptake / 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 / dopamine uptake involved in synaptic transmission / protein kinase inhibitor activity / dynein complex binding / regulation of dopamine secretion / negative regulation of thrombin-activated receptor signaling pathway / cuprous ion binding / positive regulation of exocytosis / response to magnesium ion / synaptic vesicle exocytosis / enzyme inhibitor activity / positive regulation of endocytosis / kinesin binding / 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 / supramolecular fiber organization / inclusion body / phospholipid metabolic process / cellular response to copper ion / axon terminus / cellular response to epinephrine stimulus / 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 / negative regulation of protein kinase activity / 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 / PKR-mediated signaling / 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 / molecular adaptor activity / negative regulation of neuron apoptotic process / response to lipopolysaccharide / histone binding / amyloid fibril formation / lysosome / oxidoreductase activity / transcription cis-regulatory region binding / postsynapse / positive regulation of apoptotic process / Amyloid fiber formation / copper ion binding / response to xenobiotic stimulus / axon / neuronal cell body 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: 2.5 Å | ||||||||||||||||||||||||
![]() | Enomoto, M. / Martinez-Valbuena, I. / Forrest, S.L. / Xu, X. / Munhoz, R. / Li, J. / Rogaeva, E. / Lang, A.E. / Kovacs, G.G. | ||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Lewy-MSA hybrid fold drives distinct neuronal α-synuclein pathology. 著者: Masahiro Enomoto / Ivan Martinez-Valbuena / Shelley L Forrest / Xiaoxiao Xu / Renato P Munhoz / Jun Li / Ekaterina Rogaeva / Anthony E Lang / Gabor G Kovacs / ![]() 要旨: The ordered assembly of α-synuclein protein encoded by SNCA into filaments characterizes neurodegenerative synucleinopathies. Lewy body disease (LBD) shows predominantly neuronal and multiple system ...The ordered assembly of α-synuclein protein encoded by SNCA into filaments characterizes neurodegenerative synucleinopathies. Lewy body disease (LBD) shows predominantly neuronal and multiple system atrophy (MSA), predominantly oligodendrocytic α-synuclein pathology affecting subcortical brain structures. Based on cryo-electron microscopy, it was reported that the structures of α-synuclein filaments from LBD differ from MSA and juvenile-onset synucleinopathy (JOS). The rare atypical MSA subtype shows abundant neuronal argyrophilic α-synuclein inclusions in the limbic system. Current concepts indicate that disease entities are characterized by unique protofilament folds. Here we demonstrate that α-synuclein can form a Lewy-MSA hybrid fold, leading to the atypical histopathological form of MSA. Distinct biochemical characteristics of α-synuclein, as demonstrated by protease-sensitivity digestion assay, seed amplification assays (SAAs), and conformational stability assays (CSA), are also linked to cytopathological differences. We expand the current structure-based classification of α-synucleinopathies and propose that cell-specific protein pathologies can be associated with distinct filament folds. | ||||||||||||||||||||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 142.9 KB | 表示 | ![]() |
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PDB形式 | ![]() | 111.4 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.2 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.2 MB | 表示 | |
XML形式データ | ![]() | 38.8 KB | 表示 | |
CIF形式データ | ![]() | 58.4 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 70295MC ![]() 9e9xC 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 ![]() |
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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: 14476.108 Da / 分子数: 10 / 由来タイプ: 天然 / 由来: (天然) ![]() #2: タンパク質・ペプチド | 分子量: 443.539 Da / 分子数: 5 / 由来タイプ: 天然 / 由来: (天然) ![]() 研究の焦点であるリガンドがあるか | N | 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 |
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由来(天然) | 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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 45 e/Å2 フィルム・検出器のモデル: TFS FALCON 4i (4k x 4k) |
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解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.21.2_5419 / カテゴリ: モデル精密化 |
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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: -1.38 ° / 軸方向距離/サブユニット: 4.75 Å / らせん対称軸の対称性: C1 |
3次元再構成 | 解像度: 2.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 67027 / 対称性のタイプ: HELICAL |