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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 8x53 | ||||||
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タイトル | Cryo-EM structure of human gamma-secretase in complex with Abeta46 | ||||||
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![]() | MEMBRANE PROTEIN / Intramembrane protease / gamma-secretase / presenilin-1 / MEMBRANE PROTEIN-HYDROLASE complex | ||||||
機能・相同性 | ![]() Cajal-Retzius cell differentiation / positive regulation of L-glutamate import across plasma membrane / protein catabolic process at postsynapse / amyloid precursor protein biosynthetic process / positive regulation of coagulation / negative regulation of core promoter binding / gamma-secretase complex / aspartic endopeptidase activity, intramembrane cleaving / short-term synaptic potentiation / positive regulation of amyloid precursor protein biosynthetic process ...Cajal-Retzius cell differentiation / positive regulation of L-glutamate import across plasma membrane / protein catabolic process at postsynapse / amyloid precursor protein biosynthetic process / positive regulation of coagulation / negative regulation of core promoter binding / gamma-secretase complex / aspartic endopeptidase activity, intramembrane cleaving / short-term synaptic potentiation / positive regulation of amyloid precursor protein biosynthetic process / positive regulation of endopeptidase activity / Noncanonical activation of NOTCH3 / sequestering of calcium ion / Notch receptor processing / choline transport / central nervous system myelination / synaptic vesicle targeting / membrane protein intracellular domain proteolysis / negative regulation of axonogenesis / regulation of resting membrane potential / T cell activation involved in immune response / NOTCH4 Activation and Transmission of Signal to the Nucleus / skin morphogenesis / growth factor receptor binding / neural retina development / dorsal/ventral neural tube patterning / regulation of synaptic vesicle cycle / L-glutamate import across plasma membrane / myeloid dendritic cell differentiation / Regulated proteolysis of p75NTR / regulation of phosphorylation / metanephros development / regulation of epidermal growth factor-activated receptor activity / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / brain morphogenesis / endoplasmic reticulum calcium ion homeostasis / 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 / nuclear outer membrane / glutamate receptor signaling pathway / locomotion / signaling receptor activator activity / smooth endoplasmic reticulum calcium ion homeostasis / amyloid precursor protein metabolic process / axon midline choice point recognition / regulation of canonical Wnt signaling pathway / astrocyte activation involved in immune response / aggresome / regulation of long-term synaptic potentiation / regulation of spontaneous synaptic transmission / skeletal system morphogenesis / mating behavior / embryonic limb morphogenesis / NMDA selective glutamate receptor signaling pathway / cell fate specification / ciliary rootlet / myeloid cell homeostasis / regulation of postsynapse organization / azurophil granule membrane / Lysosome Vesicle Biogenesis / PTB domain binding / regulation of neuron projection development / G protein-coupled dopamine receptor signaling pathway / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; アスパラギン酸プロテアーゼ / Golgi-associated vesicle / positive regulation of amyloid fibril formation / neuron remodeling / : / Golgi cisterna membrane / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / adult behavior / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / positive regulation of receptor recycling / positive regulation of dendritic spine development / mitochondrial transport / positive regulation of catalytic activity / suckling behavior / nuclear envelope lumen / blood vessel development / heart looping / protein glycosylation / dendrite development / COPII-coated ER to Golgi transport vesicle / presynaptic active zone / cerebral cortex cell migration / amyloid precursor protein catabolic process / modulation of excitatory postsynaptic potential / amyloid-beta formation / TRAF6 mediated NF-kB activation / Advanced glycosylation endproduct receptor signaling / negative regulation of apoptotic signaling pathway / neuromuscular process controlling balance / membrane protein ectodomain proteolysis / The NLRP3 inflammasome / regulation of presynapse assembly 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3 Å | ||||||
![]() | Guo, X. / Yan, C. / Lei, J. / Zhou, R. / Shi, Y. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular mechanism of substrate recognition and cleavage by human γ-secretase. 著者: Xuefei Guo / Haotian Li / Chuangye Yan / Jianlin Lei / Rui Zhou / Yigong Shi / ![]() 要旨: Successive cleavages of amyloid precursor protein C-terminal fragment with 99 residues (APP-C99) by γ-secretase result in amyloid-β (Aβ) peptides of varying lengths. Most cleavages have a step ...Successive cleavages of amyloid precursor protein C-terminal fragment with 99 residues (APP-C99) by γ-secretase result in amyloid-β (Aβ) peptides of varying lengths. Most cleavages have a step size of three residues. To elucidate the underlying mechanism, we determined the atomic structures of human γ-secretase bound individually to APP-C99, Aβ49, Aβ46, and Aβ43. In all cases, the substrate displays the same structural features: a transmembrane α-helix, a three-residue linker, and a β-strand that forms a hybrid β-sheet with presenilin 1 (PS1). Proteolytic cleavage occurs just ahead of the substrate β-strand. Each cleavage is followed by unwinding and translocation of the substrate α-helix by one turn and the formation of a new β-strand. This mechanism is consistent with existing biochemical data and may explain the cleavages of other substrates by γ-secretase. | ||||||
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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 | ![]() | 263.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 205.1 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 | ![]() | 926.6 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 947.8 KB | 表示 | |
XML形式データ | ![]() | 30.3 KB | 表示 | |
CIF形式データ | ![]() | 44.4 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 | ![]() 38060MC ![]() 8x52C ![]() 8x54C 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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要素
-タンパク質 , 2種, 2分子 AB
#1: タンパク質 | 分子量: 78483.570 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#2: タンパク質 | 分子量: 52713.535 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 参照: UniProt: P49768, 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; アスパラギン酸プロテアーゼ |
-Gamma-secretase subunit ... , 2種, 2分子 CD
#3: タンパク質 | 分子量: 29017.943 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#4: タンパク質 | 分子量: 16498.680 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-タンパク質・ペプチド , 1種, 1分子 E
#5: タンパク質・ペプチド | 分子量: 4932.610 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) ![]() |
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-糖 , 3種, 12分子 ![](data/chem/img/NAG.gif)
#6: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #7: 多糖 | beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #8: 糖 | ChemComp-NAG / |
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-非ポリマー , 2種, 5分子 ![](data/chem/img/PC1.gif)
![](data/chem/img/CLR.gif)
![](data/chem/img/CLR.gif)
#9: 化合物 | #10: 化合物 | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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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: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: Human gamma-secretase in complex with Abeta46 / タイプ: COMPLEX / Entity ID: #1-#5 / 由来: RECOMBINANT |
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分子量 | 実験値: NO |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.4 |
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): 1800 nm / 最小 デフォーカス(公称値): 1500 nm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1447171 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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