登録情報 データベース : EMDB / ID : EMD-63648 ダウンロードとリンクタイトル V'-shaped short pitch amyloid fiber (40) of Tottori (D7N) mutant マップデータV'-shaped short pitch amyloid fiber (40) of Tottori (D7N) mutant (helical symmetry imposed) 詳細 試料複合体 : V'-shaped short pitch amyloid fiber (40) of Tottori (D7N) mutantタンパク質・ペプチド : Amyloid-beta protein 40 詳細 キーワード Amyloid / PROTEIN FIBRIL機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
amyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / collateral sprouting in absence of injury / growth cone filopodium / microglia development / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of Wnt signaling pathway / axo-dendritic transport / axon midline choice point recognition ... amyloid-beta complex / growth cone lamellipodium / cellular response to norepinephrine stimulus / collateral sprouting in absence of injury / growth cone filopodium / microglia development / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of Wnt signaling pathway / axo-dendritic transport / axon midline choice point recognition / regulation of synapse structure or activity / hippocampal neuron apoptotic process / astrocyte activation involved in immune response / NMDA selective glutamate receptor signaling pathway / regulation of spontaneous synaptic transmission / mating behavior / growth factor receptor binding / peptidase activator activity / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / positive regulation of amyloid fibril formation / PTB domain binding / Golgi-associated vesicle / astrocyte projection / Lysosome Vesicle Biogenesis / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / neuron remodeling / nuclear envelope lumen / TRAF6 mediated NF-kB activation / dendrite development / positive regulation of protein metabolic process / signaling receptor activator activity / negative regulation of long-term synaptic potentiation / Advanced glycosylation endproduct receptor signaling / transition metal ion binding / The NLRP3 inflammasome / modulation of excitatory postsynaptic potential / main axon / regulation of multicellular organism growth / intracellular copper ion homeostasis / ECM proteoglycans / response to insulin-like growth factor stimulus / positive regulation of T cell migration / regulation of presynapse assembly / neuronal dense core vesicle / Purinergic signaling in leishmaniasis infection / cellular response to manganese ion / positive regulation of chemokine production / Notch signaling pathway / swimming behavior / neuron projection maintenance / extracellular matrix organization / clathrin-coated pit / positive regulation of mitotic cell cycle / axonogenesis / Mitochondrial protein degradation / positive regulation of calcium-mediated signaling / ionotropic glutamate receptor signaling pathway / platelet alpha granule lumen / astrocyte activation / response to interleukin-1 / cellular response to cAMP / regulation of neuron apoptotic process / cellular response to copper ion / positive regulation of glycolytic process / endosome lumen / trans-Golgi network membrane / positive regulation of interleukin-1 beta production / protein serine/threonine kinase binding / dendritic shaft / positive regulation of long-term synaptic potentiation / learning / central nervous system development / Post-translational protein phosphorylation / adult locomotory behavior / serine-type endopeptidase inhibitor activity / locomotory behavior / microglial cell activation / cellular response to nerve growth factor stimulus / positive regulation of non-canonical NF-kappaB signal transduction / TAK1-dependent IKK and NF-kappa-B activation / synapse organization / visual learning / recycling endosome / positive regulation of interleukin-6 production / positive regulation of JNK cascade / Golgi lumen / regulation of long-term neuronal synaptic plasticity / response to lead ion / cognition / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / cellular response to amyloid-beta / endocytosis / neuron projection development / positive regulation of tumor necrosis factor production / positive regulation of inflammatory response / calcium ion transport / Platelet degranulation / regulation of translation / heparin binding / regulation of gene expression 類似検索 - 分子機能 Amyloidogenic glycoprotein, copper-binding / Amyloidogenic glycoprotein, copper-binding domain conserved site / Amyloidogenic glycoprotein, copper-binding domain superfamily / Copper-binding of amyloid precursor, CuBD / Amyloid precursor protein (APP) copper-binding (CuBD) domain signature. / Amyloidogenic glycoprotein, heparin-binding / Amyloid A4 N-terminal heparin-binding / Amyloidogenic glycoprotein, amyloid-beta peptide superfamily / Beta-amyloid peptide (beta-APP) / Amyloidogenic glycoprotein, amyloid-beta peptide ... Amyloidogenic glycoprotein, copper-binding / Amyloidogenic glycoprotein, copper-binding domain conserved site / Amyloidogenic glycoprotein, copper-binding domain superfamily / Copper-binding of amyloid precursor, CuBD / Amyloid precursor protein (APP) copper-binding (CuBD) domain signature. / Amyloidogenic glycoprotein, heparin-binding / Amyloid A4 N-terminal heparin-binding / Amyloidogenic glycoprotein, amyloid-beta peptide superfamily / Beta-amyloid peptide (beta-APP) / Amyloidogenic glycoprotein, amyloid-beta peptide / Beta-amyloid precursor protein C-terminal / Amyloidogenic glycoprotein, intracellular domain, conserved site / Beta-amyloid precursor protein C-terminus / Amyloid precursor protein (APP) intracellular domain signature. / Amyloidogenic glycoprotein, extracellular / Amyloidogenic glycoprotein, E2 domain / E2 domain superfamily / Amyloidogenic glycoprotein, heparin-binding domain superfamily / E2 domain of amyloid precursor protein / Amyloid precursor protein (APP) E1 domain profile. / Amyloid precursor protein (APP) E2 domain profile. / amyloid A4 / Amyloidogenic glycoprotein / Proteinase inhibitor I2, Kunitz, conserved site / Pancreatic trypsin inhibitor (Kunitz) family signature. / BPTI/Kunitz family of serine protease inhibitors. / Pancreatic trypsin inhibitor Kunitz domain / Kunitz/Bovine pancreatic trypsin inhibitor domain / Pancreatic trypsin inhibitor (Kunitz) family profile. / Pancreatic trypsin inhibitor Kunitz domain superfamily / PH-like domain superfamily 類似検索 - ドメイン・相同性生物種 Homo sapiens (ヒト)手法 らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.6 Å 詳細 データ登録者Burton-Smith RN / Murata K 資金援助 日本, 1件 詳細 詳細を隠すOrganization Grant number 国 Ministry of Education, Culture, Sports, Science and Technology (Japan) JP24ama121005 日本
引用ジャーナル : ACS Chem Neurosci / 年 : 2025タイトル : Microgravity-Assisted Exploration of the Conformational Space of Amyloid β Affected by Tottori-Type Familial Mutation D7N.著者 : Maho Yagi-Utsumi / Saeko Yanaka / Raymond N Burton-Smith / Chihong Song / Christian Ganser / Chiaki Yamazaki / Haruo Kasahara / Toru Shimazu / Takayuki Uchihashi / Kazuyoshi Murata / Koichi Kato / 要旨 : The amyloid β (Aβ) Tottori variant (D7N) exhibits unique aggregation behaviors and altered fibril formation, posing challenges for structural characterization. To overcome this, the microgravity ... The amyloid β (Aβ) Tottori variant (D7N) exhibits unique aggregation behaviors and altered fibril formation, posing challenges for structural characterization. To overcome this, the microgravity environment on the International Space Station was employed to study Tottori-type Aβ40 fibril formation and structure. Under Earth gravity, Tottori-type Aβ40 primarily formed nonfibrillar aggregates, hindering detailed structural analysis. In contrast, microgravity significantly enhanced fibril formation and minimized amorphous aggregates. Cryo-electron microscopy revealed two structurally distinct fibril types, each comprising different protomer conformations. In both types, the N-terminal segment was disordered and nor resolved in the density maps. The D7N mutation disrupts the protection of the core by the N-terminal segment often observed in wild-type Aβ40 fibrils, enhancing the hydrophobicity-mediated aggregation propensity. However, microgravity suppressed kinetic traps and facilitated high-quality fibril formation suitable for structural studies that can explore the free energy landscape of Aβ fibril formation. These findings demonstrate the utility of microgravity for studying familial Aβ variants and potentially accelerate our understanding of Aβ aggregation mechanisms in Alzheimer's disease. 履歴 登録 2025年3月6日 - ヘッダ(付随情報) 公開 2025年7月9日 - マップ公開 2025年7月9日 - 更新 2025年7月23日 - 現状 2025年7月23日 処理サイト : PDBj / 状態 : 公開
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