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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: 8adv | |||||||||||||||
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| タイトル | Lipidic alpha-synuclein fibril - polymorph L1B | |||||||||||||||
要素 | Alpha-synuclein | |||||||||||||||
キーワード | PROTEIN FIBRIL / amyloid 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 / regulation of synaptic vesicle recycling ...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 / regulation of reactive oxygen species biosynthetic 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 / Lewy body / 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 / protein kinase inhibitor activity / synaptic vesicle transport / dopamine uptake involved in synaptic transmission / 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 / negative regulation of serotonin uptake / response to type II interferon / kinesin binding / cysteine-type endopeptidase inhibitor activity / regulation of presynapse assembly / synaptic vesicle endocytosis / alpha-tubulin binding / beta-tubulin binding / phospholipase binding / supramolecular fiber organization / phospholipid metabolic process / behavioral response to cocaine / cellular response to fibroblast growth factor stimulus / inclusion body / cellular response to epinephrine stimulus / Hsp70 protein binding / enzyme inhibitor activity / response to interleukin-1 / axon terminus / 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 / tubulin binding / microglial cell activation / ferrous iron binding / fatty acid metabolic process / PKR-mediated signaling / 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 / long-term synaptic potentiation / synaptic vesicle membrane / actin cytoskeleton / growth cone / actin binding / cellular response to oxidative stress / neuron apoptotic process / cell cortex / histone binding / response to lipopolysaccharide / microtubule binding / amyloid fibril formation / chemical synaptic transmission 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: 2.98 Å | |||||||||||||||
データ登録者 | Frieg, B. / Antonschmidt, L. / Dienemann, C. / Geraets, J.A. / Najbauer, E.E. / Matthes, D. / de Groot, B.L. / Andreas, L.B. / Becker, S. / Griesinger, C. / Schroeder, G.F. | |||||||||||||||
| 資金援助 | ドイツ, 4件
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引用 | ジャーナル: Nat Commun / 年: 2022タイトル: The 3D structure of lipidic fibrils of α-synuclein. 著者: Benedikt Frieg / Leif Antonschmidt / Christian Dienemann / James A Geraets / Eszter E Najbauer / Dirk Matthes / Bert L de Groot / Loren B Andreas / Stefan Becker / Christian Griesinger / Gunnar F Schröder / ![]() 要旨: α-synuclein misfolding and aggregation into fibrils is a common feature of α-synucleinopathies, such as Parkinson's disease, in which α-synuclein fibrils are a characteristic hallmark of neuronal ...α-synuclein misfolding and aggregation into fibrils is a common feature of α-synucleinopathies, such as Parkinson's disease, in which α-synuclein fibrils are a characteristic hallmark of neuronal inclusions called Lewy bodies. Studies on the composition of Lewy bodies extracted postmortem from brain tissue of Parkinson's patients revealed that lipids and membranous organelles are also a significant component. Interactions between α-synuclein and lipids have been previously identified as relevant for Parkinson's disease pathology, however molecular insights into their interactions have remained elusive. Here we present cryo-electron microscopy structures of six α-synuclein fibrils in complex with lipids, revealing specific lipid-fibril interactions. We observe that phospholipids promote an alternative protofilament fold, mediate an unusual arrangement of protofilaments, and fill the central cavities of the fibrils. Together with our previous studies, these structures also indicate a mechanism for fibril-induced lipid extraction, which is likely to be involved in the development of α-synucleinopathies. Specifically, one potential mechanism for the cellular toxicity is the disruption of intracellular vesicles mediated by fibrils and oligomers, and therefore the modulation of these interactions may provide a promising strategy for future therapeutic interventions. | |||||||||||||||
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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 | 8adv.cif.gz | 165.3 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8adv.ent.gz | 128.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8adv.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/ad/8adv ftp://data.pdbj.org/pub/pdb/validation_reports/ad/8adv | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 15371MC ![]() 8a4lC ![]() 8adsC ![]() 8aduC ![]() 8adwC ![]() 8aexC 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: 14476.108 Da / 分子数: 10 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: SNCA, NACP, PARK1 / 発現宿主: ![]() |
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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: Lipidic alpha-synuclein fibril - polymorph L1B / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 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: FEI TITAN 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): 500 nm |
| 撮影 | 電子線照射量: 50.83 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
| ソフトウェア |
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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: 179.49 ° / 軸方向距離/サブユニット: 2.37 Å / らせん対称軸の対称性: C1 | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.98 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 19108 / 対称性のタイプ: HELICAL | ||||||||||||||||||||||||
| 精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
| 原子変位パラメータ | Biso mean: 53.58 Å2 | ||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)
ドイツ, 4件
引用










PDBj



FIELD EMISSION GUN