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基本情報
登録情報 | データベース: PDB / ID: 8azs | ||||||||||||
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タイトル | Type I amyloid-beta 42 filaments from high-spin supernatants of aqueous extracts from Alzheimer's disease brains | ABeta42 | ||||||||||||
![]() | Amyloid-beta precursor protein | ||||||||||||
![]() | PROTEIN FIBRIL / amyloid / filaments / Abeta42 / amyloid-beta / cryo-EM | ||||||||||||
機能・相同性 | ![]() amyloid-beta complex / negative regulation of presynapse assembly / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / synaptic assembly at neuromuscular junction / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of Wnt signaling pathway / regulation of synapse structure or activity / axo-dendritic transport ...amyloid-beta complex / negative regulation of presynapse assembly / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / synaptic assembly at neuromuscular junction / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of Wnt signaling pathway / regulation of synapse structure or activity / axo-dendritic transport / axon midline choice point recognition / smooth endoplasmic reticulum calcium ion homeostasis / astrocyte activation involved in immune response / NMDA selective glutamate receptor signaling pathway / mating behavior / regulation of spontaneous synaptic transmission / ciliary rootlet / Golgi-associated vesicle / Lysosome Vesicle Biogenesis / PTB domain binding / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / positive regulation of amyloid fibril formation / neuron remodeling / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / nuclear envelope lumen / COPII-coated ER to Golgi transport vesicle / suckling behavior / dendrite development / positive regulation of protein metabolic process / modulation of excitatory postsynaptic potential / TRAF6 mediated NF-kB activation / presynaptic active zone / signaling receptor activator activity / Advanced glycosylation endproduct receptor signaling / The NLRP3 inflammasome / neuromuscular process controlling balance / negative regulation of long-term synaptic potentiation / regulation of multicellular organism growth / transition metal ion binding / intracellular copper ion homeostasis / regulation of presynapse assembly / negative regulation of neuron differentiation / ECM proteoglycans / spindle midzone / positive regulation of T cell migration / smooth endoplasmic reticulum / Purinergic signaling in leishmaniasis infection / forebrain development / positive regulation of chemokine production / clathrin-coated pit / Notch signaling pathway / positive regulation of G2/M transition of mitotic cell cycle / extracellular matrix organization / neuron projection maintenance / Mitochondrial protein degradation / ionotropic glutamate receptor signaling pathway / positive regulation of mitotic cell cycle / response to interleukin-1 / cholesterol metabolic process / protein serine/threonine kinase binding / positive regulation of calcium-mediated signaling / axonogenesis / platelet alpha granule lumen / learning / adult locomotory behavior / positive regulation of glycolytic process / central nervous system development / dendritic shaft / positive regulation of long-term synaptic potentiation / positive regulation of interleukin-1 beta production / trans-Golgi network membrane / endosome lumen / locomotory behavior / astrocyte activation / positive regulation of JNK cascade / Post-translational protein phosphorylation / microglial cell activation / serine-type endopeptidase inhibitor activity / regulation of long-term neuronal synaptic plasticity / positive regulation of non-canonical NF-kappaB signal transduction / synapse organization / TAK1-dependent IKK and NF-kappa-B activation / visual learning / neuromuscular junction / recycling endosome / positive regulation of interleukin-6 production / Golgi lumen / cognition / neuron cellular homeostasis / endocytosis / positive regulation of inflammatory response / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / neuron projection development / cellular response to amyloid-beta / G2/M transition of mitotic cell cycle / positive regulation of tumor necrosis factor production / apical part of cell / synaptic vesicle / Platelet degranulation / cell-cell junction 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: 2.9 Å | ||||||||||||
![]() | Yang, Y. / Stern, M.A. / Meunier, L.A. / Liu, W. / Cai, Y.Q. / Ericsson, M. / Liu, L. / Selkoe, J.D. / Goedert, M. / Scheres, H.W.S. | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Abundant Aβ fibrils in ultracentrifugal supernatants of aqueous extracts from Alzheimer's disease brains. 著者: Andrew M Stern / Yang Yang / Shanxue Jin / Keitaro Yamashita / Angela L Meunier / Wen Liu / Yuqi Cai / Maria Ericsson / Lei Liu / Michel Goedert / Sjors H W Scheres / Dennis J Selkoe / ![]() ![]() 要旨: Soluble oligomers of amyloid β-protein (Aβ) have been defined as aggregates in supernatants following ultracentrifugation of aqueous extracts from Alzheimer's disease (AD) brains and are believed ...Soluble oligomers of amyloid β-protein (Aβ) have been defined as aggregates in supernatants following ultracentrifugation of aqueous extracts from Alzheimer's disease (AD) brains and are believed to be upstream initiators of synaptic dysfunction, but little is known about their structures. We now report the unexpected presence of Aβ fibrils in synaptotoxic high-speed supernatants from AD brains extracted by soaking in an aqueous buffer. The fibrils did not appear to form during preparation, and their counts by EM correlated with Aβ ELISA quantification. Cryo-EM structures of aqueous Aβ fibrils were identical to those from sarkosyl-insoluble homogenates. The fibrils in aqueous extracts were labeled by lecanemab, an Aβ aggregate-directed antibody reported to improve AD cognitive outcomes. Lecanemab provided protection against aqueous fibril synaptotoxicity. We conclude that fibrils are abundant in aqueous extracts from AD brains and have the same structures as those from plaques. These findings have implications for AD pathogenesis and drug design. | ||||||||||||
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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 | ![]() | 19.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 8.3 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 | ![]() | 1.1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.1 MB | 表示 | |
XML形式データ | ![]() | 18.9 KB | 表示 | |
CIF形式データ | ![]() | 25.4 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 | ![]() 15770MC ![]() 8aztC ![]() 8azuC 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 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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非結晶学的対称性 (NCS) | NCS oper:
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要素
#1: タンパク質・ペプチド | 分子量: 4520.087 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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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: Type I amyloid-beta 42 filaments in soluble high-molecular weight aggregate fractions extracted from Alzheimer's disease brain タイプ: TISSUE / Entity ID: all / 由来: NATURAL |
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由来(天然) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2400 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 40 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
ソフトウェア | 名称: REFMAC / バージョン: 5.8.0350 / 分類: 精密化 / Contact author: Garib N. Murshudov / Contact author email: garib[at]mrc-lmb.cam.ac.uk / 日付: 2022年5月11日 解説: (un)restrained refinement or idealisation of macromolecular structures | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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EM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: 178.4 ° / 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: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 37380 / 対称性のタイプ: HELICAL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 7Q4B Accession code: 7Q4B / Source name: PDB / タイプ: experimental model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化 | 解像度: 2.9→81.438 Å / Cor.coef. Fo:Fc: 0.879 / WRfactor Rwork: 0.327 / SU B: 6.973 / SU ML: 0.13 / Average fsc free: 0 / Average fsc overall: 0.8793 / Average fsc work: 0.8793 / ESU R: 0.103 / 詳細: Hydrogens have been added in their riding positions
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溶媒の処理 | 溶媒モデル: NONE | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 68.479 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
拘束条件 |
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