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基本情報
登録情報 | データベース: EMDB / ID: EMD-12696 | |||||||||
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タイトル | Amyloid beta oligomer displayed on the alpha hemolysin scaffold | |||||||||
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![]() | Amyloid beta oligomer / alpha hemolysin / Alzheimer's Disease / TOXIN | |||||||||
機能・相同性 | ![]() cytolysis in another organism / regulation of epidermal growth factor-activated receptor activity / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / regulation of synapse structure or activity / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands / axo-dendritic transport / synaptic assembly at neuromuscular junction ...cytolysis in another organism / regulation of epidermal growth factor-activated receptor activity / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / regulation of synapse structure or activity / regulation of Wnt signaling pathway / Formyl peptide receptors bind formyl peptides and many other ligands / axo-dendritic transport / synaptic assembly at neuromuscular junction / signaling receptor activator activity / smooth endoplasmic reticulum calcium ion homeostasis / axon midline choice point recognition / astrocyte activation involved in immune response / regulation of spontaneous synaptic transmission / mating behavior / NMDA selective glutamate receptor signaling pathway / ciliary rootlet / Lysosome Vesicle Biogenesis / PTB domain binding / Golgi-associated vesicle / positive regulation of amyloid fibril formation / neuron remodeling / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / : / suckling behavior / nuclear envelope lumen / dendrite development / COPII-coated ER to Golgi transport vesicle / presynaptic active zone / modulation of excitatory postsynaptic potential / TRAF6 mediated NF-kB activation / Advanced glycosylation endproduct receptor signaling / neuromuscular process controlling balance / The NLRP3 inflammasome / regulation of presynapse assembly / transition metal ion binding / negative regulation of long-term synaptic potentiation / regulation of multicellular organism growth / intracellular copper ion homeostasis / negative regulation of neuron differentiation / ECM proteoglycans / smooth endoplasmic reticulum / positive regulation of T cell migration / spindle midzone / Purinergic signaling in leishmaniasis infection / positive regulation of calcium-mediated signaling / protein serine/threonine kinase binding / positive regulation of chemokine production / clathrin-coated pit / regulation of peptidyl-tyrosine phosphorylation / forebrain development / Notch signaling pathway / Mitochondrial protein degradation / neuron projection maintenance / positive regulation of G2/M transition of mitotic cell cycle / positive regulation of protein metabolic process / ionotropic glutamate receptor signaling pathway / positive regulation of glycolytic process / cholesterol metabolic process / response to interleukin-1 / positive regulation of mitotic cell cycle / extracellular matrix organization / adult locomotory behavior / axonogenesis / platelet alpha granule lumen / trans-Golgi network membrane / positive regulation of peptidyl-threonine phosphorylation / dendritic shaft / learning / positive regulation of interleukin-1 beta production / positive regulation of long-term synaptic potentiation / locomotory behavior / central nervous system development / endosome lumen / astrocyte activation / positive regulation of JNK cascade / Post-translational protein phosphorylation / microglial cell activation / synapse organization / regulation of long-term neuronal synaptic plasticity / TAK1-dependent IKK and NF-kappa-B activation / visual learning / serine-type endopeptidase inhibitor activity / neuromuscular junction / recycling endosome / cognition / neuron cellular homeostasis / Golgi lumen / positive regulation of inflammatory response / positive regulation of non-canonical NF-kappaB signal transduction / endocytosis / cellular response to amyloid-beta / G2/M transition of mitotic cell cycle / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / positive regulation of interleukin-6 production / positive regulation of tumor necrosis factor production / neuron projection development / cell-cell junction 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.4 Å | |||||||||
![]() | Wu J / Blum TB | |||||||||
![]() | ![]() タイトル: Cryo-electron Microscopy Imaging of Alzheimer's Amyloid-beta 42 Oligomer Displayed on a Functionally and Structurally Relevant Scaffold. 著者: Jinming Wu / Thorsten B Blum / Daniel P Farrell / Frank DiMaio / Jan Pieter Abrahams / Jinghui Luo / ![]() ![]() 要旨: Amyloid-β peptide (Aβ) oligomers are pathogenic species of amyloid aggregates in Alzheimer's disease. Like certain protein toxins, Aβ oligomers permeabilize cellular membranes, presumably through ...Amyloid-β peptide (Aβ) oligomers are pathogenic species of amyloid aggregates in Alzheimer's disease. Like certain protein toxins, Aβ oligomers permeabilize cellular membranes, presumably through a pore formation mechanism. Owing to their structural and stoichiometric heterogeneity, the structure of these pores remains to be characterized. We studied a functional Aβ42-pore equivalent, created by fusing Aβ42 to the oligomerizing, soluble domain of the α-hemolysin (αHL) toxin. Our data reveal Aβ42-αHL oligomers to share major structural, functional, and biological properties with wild-type Aβ42-pores. Single-particle cryo-EM analysis of Aβ42-αHL oligomers (with an overall 3.3 Å resolution) reveals the Aβ42-pore region to be intrinsically flexible. The Aβ42-αHL oligomers will allow many of the features of the wild-type amyloid oligomers to be studied that cannot be otherwise, and may be a highly specific antigen for the development of immuno-base diagnostics and therapies. | |||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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ダウンロードとリンク
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マップデータ | ![]() | 21.5 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 9.3 KB 9.3 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 7.2 KB | 表示 | ![]() |
画像 | ![]() | 87.1 KB | ||
Filedesc metadata | ![]() | 5 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 405.1 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 404.7 KB | 表示 | |
XML形式データ | ![]() | 9.7 KB | 表示 | |
CIF形式データ | ![]() | 12.4 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 1.03 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
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試料の構成要素
-全体 : Abeta42-AHL
全体 | 名称: Abeta42-AHL |
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要素 |
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-超分子 #1: Abeta42-AHL
超分子 | 名称: Abeta42-AHL / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
-分子 #1: Alpha-hemolysin hybridized Abeta
分子 | 名称: Alpha-hemolysin hybridized Abeta / タイプ: protein_or_peptide / ID: 1 / コピー数: 7 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 33.45927 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: ADSDINIKTG TTDIGSNTTV KTGDLVTYDK ENGMHKKVFY SFIDDKNHNK KLLVIRTKGT IAGQYRVYSE EGANKSGLAW PSAFKVQLQ LPDNEVAQIS DYYPRNDAEF RHDSGYEVHH QKLVFFAEDV GSNKGAIIGL MVGGVVIAYV QPDFKTILES P TDKKVGWK ...文字列: ADSDINIKTG TTDIGSNTTV KTGDLVTYDK ENGMHKKVFY SFIDDKNHNK KLLVIRTKGT IAGQYRVYSE EGANKSGLAW PSAFKVQLQ LPDNEVAQIS DYYPRNDAEF RHDSGYEVHH QKLVFFAEDV GSNKGAIIGL MVGGVVIAYV QPDFKTILES P TDKKVGWK VIFNNMVNQN WGPYDRDSWN PVYGNQLFMK TRNGSMKAAD NFLDPNKASS LLSSGFSPDF ATVITMDRKA SK QQTNIDV IYERVRDDYQ LHWTSTNWKG TNTKDKWTDR SSERYKIDWE KEEMTN UniProtKB: Alpha-hemolysin, Amyloid-beta precursor protein, Alpha-hemolysin |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 4.83 mg/mL |
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緩衝液 | pH: 8 詳細: 50 mM Tris-HCl, pH 8.0, 500 mM NaCl, 250 mM imidazole and 0.38 mM DDM |
グリッド | 材質: GOLD |
凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 55.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |