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基本情報
登録情報 | データベース: EMDB / ID: EMD-3028 | |||||||||
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タイトル | MicroED structure of the toxic core segment, GAVVTGVTAVA, from Parkinson's disease protein, alpha-synuclein, residues 69-78. | |||||||||
![]() | microED map of toxic NACore segment, residues 68-78 of alpha-synuclein | |||||||||
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![]() | Amyloid fibrils / alpha-synuclein / MicroED Crystallography / Parkinson's Disease / Peptide / Toxicity | |||||||||
機能・相同性 | ![]() regulation of phospholipase activity / : / negative regulation of mitochondrial electron transport, NADH to ubiquinone / : / neutral lipid metabolic process / negative regulation of transporter activity / 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 ...regulation of phospholipase activity / : / negative regulation of mitochondrial electron transport, NADH to ubiquinone / : / neutral lipid metabolic process / negative regulation of transporter activity / 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 chaperone-mediated autophagy / regulation of synaptic vesicle recycling / 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 / regulation of norepinephrine uptake / dopamine biosynthetic process / regulation of locomotion / synaptic vesicle priming / mitochondrial ATP synthesis coupled electron transport / regulation of macrophage activation / positive regulation of inositol phosphate biosynthetic process / negative regulation of microtubule polymerization / synaptic vesicle transport / dynein complex binding / positive regulation of receptor recycling / dopamine uptake involved in synaptic transmission / protein kinase inhibitor activity / regulation of dopamine secretion / negative regulation of thrombin-activated receptor signaling pathway / cuprous ion binding / positive regulation of endocytosis / synaptic vesicle exocytosis / positive regulation of exocytosis / response to magnesium ion / cysteine-type endopeptidase inhibitor activity involved in apoptotic process / kinesin binding / regulation of presynapse assembly / synaptic vesicle endocytosis / response to type II interferon / negative regulation of serotonin uptake / alpha-tubulin binding / inclusion body / supramolecular fiber organization / phospholipid metabolic process / cellular response to copper ion / cellular response to epinephrine stimulus / axon terminus / Hsp70 protein binding / response to interleukin-1 / SNARE binding / positive regulation of release of sequestered calcium ion into cytosol / adult locomotory behavior / excitatory postsynaptic potential / fatty acid metabolic process / positive regulation of protein serine/threonine kinase activity / phosphoprotein binding / negative regulation of protein kinase activity / protein tetramerization / long-term synaptic potentiation / regulation of transmembrane transporter activity / microglial cell activation / regulation of long-term neuronal synaptic plasticity / synapse organization / ferrous iron binding / positive regulation of peptidyl-serine phosphorylation / protein destabilization / PKR-mediated signaling / tau protein binding / receptor internalization / phospholipid binding / synaptic vesicle membrane / positive regulation of inflammatory response / actin cytoskeleton / actin binding / growth cone / cell cortex / cellular response to oxidative stress / chemical synaptic transmission / neuron apoptotic process / molecular adaptor activity / response to lipopolysaccharide / negative regulation of neuron apoptotic process / histone binding / amyloid fibril formation / lysosome / oxidoreductase activity / transcription cis-regulatory region binding / postsynapse / positive regulation of apoptotic process / copper ion binding / response to xenobiotic stimulus 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 電子線結晶学 / クライオ電子顕微鏡法 / 解像度: 1.4 Å | |||||||||
![]() | Rodriguez JA / Ivanova M / Sawaya MR / Cascio D / Reyes F / Shi D / Johnson L / Guenther E / Zhang M / Jiang L ...Rodriguez JA / Ivanova M / Sawaya MR / Cascio D / Reyes F / Shi D / Johnson L / Guenther E / Zhang M / Jiang L / Arbing MA / Sangwan S / Hattne J / Whitelegge J / Brewster A / Messerschmidt M / Boutet S / Sauter NK / Nannenga B / Gonen T / Eisenberg D | |||||||||
![]() | ![]() タイトル: Structure of the toxic core of α-synuclein from invisible crystals. 著者: Jose A Rodriguez / Magdalena I Ivanova / Michael R Sawaya / Duilio Cascio / Francis E Reyes / Dan Shi / Smriti Sangwan / Elizabeth L Guenther / Lisa M Johnson / Meng Zhang / Lin Jiang / Mark ...著者: Jose A Rodriguez / Magdalena I Ivanova / Michael R Sawaya / Duilio Cascio / Francis E Reyes / Dan Shi / Smriti Sangwan / Elizabeth L Guenther / Lisa M Johnson / Meng Zhang / Lin Jiang / Mark A Arbing / Brent L Nannenga / Johan Hattne / Julian Whitelegge / Aaron S Brewster / Marc Messerschmidt / Sébastien Boutet / Nicholas K Sauter / Tamir Gonen / David S Eisenberg / ![]() 要旨: The protein α-synuclein is the main component of Lewy bodies, the neuron-associated aggregates seen in Parkinson disease and other neurodegenerative pathologies. An 11-residue segment, which we term ...The protein α-synuclein is the main component of Lewy bodies, the neuron-associated aggregates seen in Parkinson disease and other neurodegenerative pathologies. An 11-residue segment, which we term NACore, appears to be responsible for amyloid formation and cytotoxicity of human α-synuclein. Here we describe crystals of NACore that have dimensions smaller than the wavelength of visible light and thus are invisible by optical microscopy. As the crystals are thousands of times too small for structure determination by synchrotron X-ray diffraction, we use micro-electron diffraction to determine the structure at atomic resolution. The 1.4 Å resolution structure demonstrates that this method can determine previously unknown protein structures and here yields, to our knowledge, the highest resolution achieved by any cryo-electron microscopy method to date. The structure exhibits protofibrils built of pairs of face-to-face β-sheets. X-ray fibre diffraction patterns show the similarity of NACore to toxic fibrils of full-length α-synuclein. The NACore structure, together with that of a second segment, inspires a model for most of the ordered portion of the toxic, full-length α-synuclein fibril, presenting opportunities for the design of inhibitors of α-synuclein fibrils. | |||||||||
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構造ビューア | EMマップ: ![]() ![]() ![]() |
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「今月の分子」の関連する項目 |
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ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | microED map of toxic NACore segment, residues 68-78 of alpha-synuclein | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 これらの図は立方格子座標系で作成されたものです | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X: 0.45981 Å / Y: 0.40167 Å / Z: 0.44184 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
-全体 : GAVVTGVTAVA, a toxic segment from the NAC domain of Parkinson's d...
全体 | 名称: GAVVTGVTAVA, a toxic segment from the NAC domain of Parkinson's disease protein, alpha-synuclein, residues 69-78 |
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要素 |
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-超分子 #1000: GAVVTGVTAVA, a toxic segment from the NAC domain of Parkinson's d...
超分子 | 名称: GAVVTGVTAVA, a toxic segment from the NAC domain of Parkinson's disease protein, alpha-synuclein, residues 69-78 タイプ: sample / ID: 1000 / 詳細: crystalline fibrils / 集合状態: crystalline fibrils / Number unique components: 1 |
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分子量 | 理論値: 1 KDa |
-分子 #1: alpha synuclein residues 69-78
分子 | 名称: alpha synuclein residues 69-78 / タイプ: protein_or_peptide / ID: 1 / Name.synonym: a-syn 詳細: alpha synuclein residues 68-78. Synthesized chemically. コピー数: 1 / 集合状態: fibril / 組換発現: No / データベース: NCBI |
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由来(天然) | 生物種: ![]() |
分子量 | 実験値: 1 KDa |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 電子線結晶学 |
試料の集合状態 | 3D array |
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試料調製
濃度 | 1 mg/mL |
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緩衝液 | pH: 7 / 詳細: water |
グリッド | 詳細: quantifoil holey-carbon EM grid, 300 mesh copper |
凍結 | 凍結剤: ETHANE / チャンバー内温度: 100 K / 装置: FEI VITROBOT MARK IV 手法: Nanocrystals were deposited onto a quantifoil holey-carbon EM grid in a 2-3 microliter drop after appropriate dilution, which was optimized for crystal density on the grid. All grids were ...手法: Nanocrystals were deposited onto a quantifoil holey-carbon EM grid in a 2-3 microliter drop after appropriate dilution, which was optimized for crystal density on the grid. All grids were then blotted and vitrified by plunging into liquid ethane using a Vitrobot Mark IV (FEI), then transferring to liquid nitrogen for storage. |
詳細 | Crystals grew in batch. In a microcentrifuge tube at 37 degrees C with shaking. |
結晶化 | 詳細: Crystals grew in batch. In a microcentrifuge tube at 37 degrees C with shaking. |
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電子顕微鏡法
顕微鏡 | FEI TECNAI F20 |
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温度 | 最低: 99 K / 最高: 101 K / 平均: 100 K |
詳細 | very low dose data collection. Spot size 11. |
日付 | 2014年8月28日 |
撮影 | カテゴリ: CCD フィルム・検出器のモデル: TVIPS TEMCAM-F416 (4k x 4k) 平均電子線量: 0.10000000000000001 e/Å2 / カメラ長: 2230 / 詳細: Diffraction images are available upon request. / ビット/ピクセル: 16 |
電子線 | 加速電圧: 200 kV / 電子線源: ![]() |
電子光学系 | 照射モード: OTHER / 撮影モード: DIFFRACTION |
試料ステージ | 試料ホルダー: liquid nitrogen cooled / 試料ホルダーモデル: GATAN LIQUID NITROGEN / Tilt angle min: -66 / Tilt angle max: 66 / Tilt series - Axis1 - Min angle: -66 ° / Tilt series - Axis1 - Max angle: 66 ° |
実験機器 | ![]() モデル: Tecnai F20 / 画像提供: FEI Company |
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画像解析
詳細 | Diffraction images were processed with XDS and XSCALE. |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 1.4 Å / 解像度の算出法: DIFFRACTION PATTERN/LAYERLINES 詳細: The diffraction data set contains intensities measured from four crystals. |
結晶パラメータ | 単位格子 - A: 70.81 Å / 単位格子 - B: 4.82 Å / 単位格子 - C: 16.79 Å / 単位格子 - γ: 90.0 ° / 単位格子 - α: 90 ° / 単位格子 - β: 105.68 ° / 空間群: C 1 2 1 |