+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-3095 | |||||||||
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タイトル | Electron negative stain tomography of alpha-synuclein amyloid fibrils treated with the Hsc70/DNAJB1/Apg2 chaperone system | |||||||||
マップデータ | Reconstruction of alpha-synuclein amyloid fibrils treated with the Hsc70/DNAJB1/Apg2 trichaperone system | |||||||||
試料 |
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キーワード | alpha-synuclein amyloid fibrils / disaggregation activity | |||||||||
機能・相同性 | 機能・相同性情報 regulation of phospholipase activity / negative regulation of monooxygenase activity / negative regulation of mitochondrial electron transport, NADH to ubiquinone / positive regulation of glutathione peroxidase activity / 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 ...regulation of phospholipase activity / negative regulation of monooxygenase activity / negative regulation of mitochondrial electron transport, NADH to ubiquinone / positive regulation of glutathione peroxidase activity / 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 / negative regulation of transporter activity / mitochondrial membrane organization / negative regulation of chaperone-mediated autophagy / regulation of reactive oxygen species biosynthetic process / regulation of synaptic vesicle recycling / 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 / regulation of norepinephrine uptake / SNARE complex assembly / positive regulation of neurotransmitter secretion / dopamine biosynthetic process / regulation of locomotion / positive regulation of inositol phosphate biosynthetic process / synaptic vesicle priming / regulation of macrophage activation / negative regulation of microtubule polymerization / synaptic vesicle transport / dopamine uptake involved in synaptic transmission / regulation of dopamine secretion / dynein complex binding / positive regulation of receptor recycling / protein kinase inhibitor activity / negative regulation of thrombin-activated receptor signaling pathway / response to type II interferon / cuprous ion binding / response to magnesium ion / positive regulation of exocytosis / synaptic vesicle exocytosis / positive regulation of endocytosis / kinesin binding / cysteine-type endopeptidase inhibitor activity involved in apoptotic process / mitochondrial ATP synthesis coupled electron transport / synaptic vesicle endocytosis / regulation of presynapse assembly / negative regulation of serotonin uptake / alpha-tubulin binding / phospholipid metabolic process / supramolecular fiber organization / axon terminus / inclusion body / cellular response to copper ion / cellular response to epinephrine stimulus / Hsp70 protein binding / response to interleukin-1 / : / adult locomotory behavior / positive regulation of release of sequestered calcium ion into cytosol / excitatory postsynaptic potential / SNARE binding / fatty acid metabolic process / long-term synaptic potentiation / phosphoprotein binding / protein tetramerization / regulation of transmembrane transporter activity / protein destabilization / negative regulation of protein kinase activity / microglial cell activation / regulation of long-term neuronal synaptic plasticity / synapse organization / ferrous iron binding / positive regulation of protein serine/threonine kinase activity / tau protein binding / PKR-mediated signaling / receptor internalization / phospholipid binding / : / synaptic vesicle membrane / positive regulation of inflammatory response / actin cytoskeleton / positive regulation of peptidyl-serine phosphorylation / actin binding / cell cortex / cellular response to oxidative stress / histone binding / growth cone / chemical synaptic transmission / neuron apoptotic process / negative regulation of neuron apoptotic process / postsynapse / response to lipopolysaccharide / amyloid fibril formation / molecular adaptor activity / lysosome / oxidoreductase activity / transcription cis-regulatory region binding / positive regulation of apoptotic process 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | 電子線トモグラフィー法 / ネガティブ染色法 | |||||||||
データ登録者 | Gao X / Carroni M / Nussbaum-Krammer C / Mogk A / Nillegoda NB / Szlachcic A / Guilbride DL / Saibil HR / Mayer MP / Bukau B | |||||||||
引用 | ジャーナル: Mol Cell / 年: 2015 タイトル: Human Hsp70 Disaggregase Reverses Parkinson's-Linked α-Synuclein Amyloid Fibrils. 著者: Xuechao Gao / Marta Carroni / Carmen Nussbaum-Krammer / Axel Mogk / Nadinath B Nillegoda / Anna Szlachcic / D Lys Guilbride / Helen R Saibil / Matthias P Mayer / Bernd Bukau / 要旨: Intracellular amyloid fibrils linked to neurodegenerative disease typically accumulate in an age-related manner, suggesting inherent cellular capacity for counteracting amyloid formation in early ...Intracellular amyloid fibrils linked to neurodegenerative disease typically accumulate in an age-related manner, suggesting inherent cellular capacity for counteracting amyloid formation in early life. Metazoan molecular chaperones assist native folding and block polymerization of amyloidogenic proteins, preempting amyloid fibril formation. Chaperone capacity for amyloid disassembly, however, is unclear. Here, we show that a specific combination of human Hsp70 disaggregase-associated chaperone components efficiently disassembles α-synuclein amyloid fibrils characteristic of Parkinson's disease in vitro. Specifically, the Hsc70 chaperone, the class B J-protein DNAJB1, and an Hsp110 family nucleotide exchange factor (NEF) provide ATP-dependent activity that disassembles amyloids within minutes via combined fibril fragmentation and depolymerization. This ultimately generates non-toxic α-synuclein monomers. Concerted, rapid interaction cycles of all three chaperone components with fibrils generate the power stroke required for disassembly. This identifies a powerful human Hsp70 disaggregase activity that efficiently disassembles amyloid fibrils and points to crucial yet undefined biology underlying amyloid-based diseases. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_3095.map.gz | 2.4 GB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-3095-v30.xml emd-3095.xml | 11.4 KB 11.4 KB | 表示 表示 | EMDBヘッダ |
画像 | EMD-3095.png | 4.2 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-3095 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-3095 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_3095_validation.pdf.gz | 128.3 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_3095_full_validation.pdf.gz | 127.4 KB | 表示 | |
XML形式データ | emd_3095_validation.xml.gz | 5 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-3095 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-3095 | HTTPS FTP |
-関連構造データ
関連構造データ | 3094C C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_3095.map.gz / 形式: CCP4 / 大きさ: 2.8 GB / タイプ: IMAGE STORED AS SIGNED BYTE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Reconstruction of alpha-synuclein amyloid fibrils treated with the Hsc70/DNAJB1/Apg2 trichaperone system | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 3.028 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : alpha-synuclein fibrils plus chaperones Hsc70, DNAJB1 and Apg2
全体 | 名称: alpha-synuclein fibrils plus chaperones Hsc70, DNAJB1 and Apg2 |
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要素 |
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-超分子 #1000: alpha-synuclein fibrils plus chaperones Hsc70, DNAJB1 and Apg2
超分子 | 名称: alpha-synuclein fibrils plus chaperones Hsc70, DNAJB1 and Apg2 タイプ: sample / ID: 1000 / Number unique components: 4 |
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-分子 #1: alpha-synuclein
分子 | 名称: alpha-synuclein / タイプ: protein_or_peptide / ID: 1 / 集合状態: amyloid fibrils / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human |
分子量 | 実験値: 14 KDa / 理論値: 14 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) / 組換株: BL21 / 組換プラスミド: pTYB11 |
配列 | UniProtKB: Alpha-synuclein |
-分子 #2: Hsc70
分子 | 名称: Hsc70 / タイプ: protein_or_peptide / ID: 2 / Name.synonym: HSPA8 / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human |
分子量 | 実験値: 70 KDa / 理論値: 70 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
-分子 #3: DNAJB1
分子 | 名称: DNAJB1 / タイプ: protein_or_peptide / ID: 3 / Name.synonym: Hdj1 / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human |
分子量 | 実験値: 40 KDa / 理論値: 40 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
-分子 #4: Apg2
分子 | 名称: Apg2 / タイプ: protein_or_peptide / ID: 4 / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human |
分子量 | 実験値: 95 KDa / 理論値: 95 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
-実験情報
-構造解析
手法 | ネガティブ染色法 |
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解析 | 電子線トモグラフィー法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.5 詳細: 50 mM Hepes-KOH pH 7.5, 50 mM KCl, 5 mM MgCl2, 2 mM DTT, 2 mM ATP, 3 mM PEP, 20 ng/microL pyruvate kinase |
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染色 | タイプ: NEGATIVE 詳細: Grids with adsorbed protein floated on 2% w/v uranyl formate for 2 minutes |
グリッド | 詳細: 200 mesh copper finder grids with thin carbon support glow discharged in atmosphere. |
凍結 | 凍結剤: NONE / 装置: OTHER |
-電子顕微鏡法
顕微鏡 | FEI TECNAI F20 |
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日付 | 2014年12月7日 |
撮影 | カテゴリ: CCD / フィルム・検出器のモデル: OTHER / 平均電子線量: 200 e/Å2 |
電子線 | 加速電圧: 200 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
試料ステージ | 試料ホルダーモデル: SIDE ENTRY, EUCENTRIC / Tilt series - Axis1 - Min angle: -60 ° / Tilt series - Axis1 - Max angle: 60 ° / Tilt series - Axis1 - Angle increment: 3 ° |
実験機器 | モデル: Tecnai F20 / 画像提供: FEI Company |
-画像解析
最終 再構成 | アルゴリズム: OTHER / ソフトウェア - 名称: IMOD / 使用した粒子像数: 40 |
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CTF補正 | 詳細: IMOD |