登録情報 データベース : EMDB / ID : EMD-63647 ダウンロードとリンクタイトル V-shaped amyloid fiber (40) of Tottori (D7N) mutant (type 1) マップデータV-shaped amyloid fiber (40) of Tottori (D7N) mutant (post-processed map) 詳細 試料複合体 : V-shaped amyloid beta fibre (type 1) (Tottori mutant - D7N)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 / negative regulation of presynapse assembly / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / regulation of Wnt signaling pathway / synaptic assembly at neuromuscular junction / Formyl peptide receptors bind formyl peptides and many other ligands / 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 / regulation of Wnt signaling pathway / synaptic assembly at neuromuscular junction / Formyl peptide receptors bind formyl peptides and many other ligands / 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 / PTB domain binding / Lysosome Vesicle Biogenesis / 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 / signaling receptor activator activity / dendrite development / modulation of excitatory postsynaptic potential / TRAF6 mediated NF-kB activation / presynaptic active zone / positive regulation of protein metabolic process / 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 / protein serine/threonine kinase binding / extracellular matrix organization / neuron projection maintenance / Mitochondrial protein degradation / ionotropic glutamate receptor signaling pathway / response to interleukin-1 / positive regulation of mitotic cell cycle / cholesterol metabolic process / axonogenesis / positive regulation of calcium-mediated signaling / platelet alpha granule lumen / adult locomotory behavior / positive regulation of glycolytic process / dendritic shaft / central nervous system development / learning / positive regulation of interleukin-1 beta production / trans-Golgi network membrane / positive regulation of long-term synaptic potentiation / endosome lumen / locomotory behavior / astrocyte activation / Post-translational protein phosphorylation / positive regulation of JNK cascade / microglial cell activation / serine-type endopeptidase inhibitor activity / regulation of long-term neuronal synaptic plasticity / synapse organization / TAK1-dependent IKK and NF-kappa-B activation / positive regulation of non-canonical NF-kappaB signal transduction / visual learning / neuromuscular junction / recycling endosome / positive regulation of interleukin-6 production / Golgi lumen / cognition / neuron cellular homeostasis / positive regulation of inflammatory response / endocytosis / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / cellular response to amyloid-beta / neuron projection development / G2/M transition of mitotic cell cycle / positive regulation of tumor necrosis factor production / apical part of cell / synaptic vesicle / cell-cell junction / Platelet degranulation 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, 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 ... 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, 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, heparin-binding / Amyloidogenic glycoprotein, E2 domain / E2 domain superfamily / Amyloidogenic glycoprotein, heparin-binding domain superfamily / Amyloid A4 N-terminal heparin-binding / 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 : 3.3 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9日 - 現状 2025年7月9日 処理サイト : PDBj / 状態 : 公開
すべて表示 表示を減らす