登録情報 データベース : EMDB / ID : EMD-35572 ダウンロードとリンクタイトル Human gamma-secretase treated with ganglioside GM1 マップデータcryo-EM structure of human gamma-secretase treated with ganglioside GM1 詳細 試料複合体 : human gamma-secretase treated with ganglioside GM1タンパク質・ペプチド : Nicastrinタンパク質・ペプチド : Presenilin-1 CTF12タンパク質・ペプチド : Gamma-secretase subunit APH-1Aタンパク質・ペプチド : Gamma-secretase subunit PEN-2リガンド : 2-acetamido-2-deoxy-beta-D-glucopyranoseリガンド : 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINEリガンド : CHOLESTEROL 詳細 キーワード intramembrane protease / lipid / ganglioside / GM1 / MEMBRANE PROTEIN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
Cajal-Retzius cell differentiation / positive regulation of L-glutamate import across plasma membrane / amyloid precursor protein biosynthetic process / negative regulation of core promoter binding / positive regulation of endopeptidase activity / gamma-secretase complex / aspartic endopeptidase activity, intramembrane cleaving / short-term synaptic potentiation / positive regulation of amyloid precursor protein biosynthetic process / smooth endoplasmic reticulum calcium ion homeostasis ... Cajal-Retzius cell differentiation / positive regulation of L-glutamate import across plasma membrane / amyloid precursor protein biosynthetic process / negative regulation of core promoter binding / positive regulation of endopeptidase activity / gamma-secretase complex / aspartic endopeptidase activity, intramembrane cleaving / short-term synaptic potentiation / positive regulation of amyloid precursor protein biosynthetic process / smooth endoplasmic reticulum calcium ion homeostasis / Noncanonical activation of NOTCH3 / protein catabolic process at postsynapse / TGFBR3 PTM regulation / sequestering of calcium ion / Notch receptor processing / synaptic vesicle targeting / negative regulation of axonogenesis / positive regulation of coagulation / central nervous system myelination / membrane protein intracellular domain proteolysis / choline transport / T cell activation involved in immune response / skin morphogenesis / NOTCH4 Activation and Transmission of Signal to the Nucleus / dorsal/ventral neural tube patterning / ciliary rootlet / neural retina development / regulation of resting membrane potential / L-glutamate import across plasma membrane / regulation of phosphorylation / Regulated proteolysis of p75NTR / myeloid dendritic cell differentiation / metanephros development / brain morphogenesis / locomotion / endoplasmic reticulum calcium ion homeostasis / amyloid precursor protein metabolic process / regulation of synaptic vesicle cycle / regulation of long-term synaptic potentiation / regulation of postsynapse organization / embryonic limb morphogenesis / cell fate specification / astrocyte activation involved in immune response / regulation of canonical Wnt signaling pathway / myeloid cell homeostasis / aggresome / skeletal system morphogenesis / azurophil granule membrane / growth factor receptor binding / 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 / glutamate receptor signaling pathway / Golgi cisterna membrane / G protein-coupled dopamine receptor signaling pathway / positive regulation of amyloid fibril formation / protein glycosylation / blood vessel development / mitochondrial transport / amyloid-beta formation / heart looping / amyloid precursor protein catabolic process / positive regulation of dendritic spine development / regulation of neuron projection development / positive regulation of receptor recycling / cerebral cortex cell migration / nuclear outer membrane / adult behavior / smooth endoplasmic reticulum / membrane protein ectodomain proteolysis / negative regulation of apoptotic signaling pathway / EPH-ephrin mediated repulsion of cells / autophagosome assembly / negative regulation of ubiquitin-dependent protein catabolic process / endopeptidase activator activity / neuron development / NOTCH2 Activation and Transmission of Signal to the Nucleus / T cell proliferation / somitogenesis / hematopoietic progenitor cell differentiation / regulation of synaptic transmission, glutamatergic / Nuclear signaling by ERBB4 / calcium ion homeostasis / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus / rough endoplasmic reticulum / Degradation of the extracellular matrix / Notch signaling pathway / neuron projection maintenance / astrocyte activation / NOTCH3 Activation and Transmission of Signal to the Nucleus / cellular response to calcium ion / thymus development / cerebellum development / positive regulation of glycolytic process / epithelial cell proliferation / dendritic shaft / post-embryonic development / PDZ domain binding / neuromuscular junction / apoptotic signaling pathway / Constitutive Signaling by NOTCH1 PEST Domain Mutants 類似検索 - 分子機能 Peptidase A22A, presenilin 1 / Gamma-secretase subunit Aph-1 / Gamma-secretase aspartyl protease complex, presenilin enhancer-2 subunit / Aph-1 protein / Presenilin enhancer-2 subunit of gamma secretase / Peptidase A22A, presenilin / Presenilin, C-terminal / Presenilin / Nicastrin / Nicastrin, small lobe ... Peptidase A22A, presenilin 1 / Gamma-secretase subunit Aph-1 / Gamma-secretase aspartyl protease complex, presenilin enhancer-2 subunit / Aph-1 protein / Presenilin enhancer-2 subunit of gamma secretase / Peptidase A22A, presenilin / Presenilin, C-terminal / Presenilin / Nicastrin / Nicastrin, small lobe / Nicastrin large lobe / Nicastrin small lobe / Presenilin/signal peptide peptidase / Presenilin, signal peptide peptidase, family 類似検索 - ドメイン・相同性 Presenilin-1 / Nicastrin / Gamma-secretase subunit APH-1A / Gamma-secretase subunit PEN-2 類似検索 - 構成要素生物種 Homo sapiens (ヒト)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 詳細 データ登録者Zhou R / Yang G / Shi Y 資金援助 中国, 1件 詳細 詳細を隠すOrganization Grant number 国 Ministry of Science and Technology (MoST, China) 2020YFA0509300 中国
引用ジャーナル : Adv Sci (Weinh) / 年 : 2023タイトル : Preferential Regulation of Γ-Secretase-Mediated Cleavage of APP by Ganglioside GM1 Reveals a Potential Therapeutic Target for Alzheimer's Disease.著者 : Xiaotong Wang / Rui Zhou / Xiaqin Sun / Jun Li / Jinxin Wang / Weihua Yue / Lifang Wang / Hesheng Liu / Yigong Shi / Dai Zhang / 要旨 : A hallmark of Alzheimer's disease (AD) is the senile plaque, which contains β-amyloid peptides (Aβ). Ganglioside GM1 is the most common brain ganglioside. However, the mechanism of GM1 in ... A hallmark of Alzheimer's disease (AD) is the senile plaque, which contains β-amyloid peptides (Aβ). Ganglioside GM1 is the most common brain ganglioside. However, the mechanism of GM1 in modulating Aβ processing is rarely known. Aβ levels are detected by using Immunohistochemistry (IHC) and enzyme-linked immune-sorbent assay (ELISA). Cryo-electron microscopy (Cryo-EM) is used to determine the structure of γ-secretase supplemented with GM1. The levels of the cleavage of amyloid precursor protein (APP)/Cadherin/Notch1 are detected using Western blot analysis. Y maze, object translocation, and Barnes maze are performed to evaluate cognitive functions. GM1 leads to conformational change of γ-secretase structure and specifically accelerates γ-secretase cleavage of APP without affecting other substrates including Notch1, potentially through its interaction with the N-terminal fragment of presenilin 1 (PS1). Reduction of GM1 levels decreases amyloid plaque deposition and improves cognitive dysfunction. This study reveals the mechanism of GM1 in Aβ generation and provides the evidence that decreasing GM1 levels represents a potential strategy in AD treatment. These results provide insights into the detailed mechanism of the effect of GM1 on PS1, representing a step toward the characterization of its novel role in the modulation of γ-secretase activity and the pathogenesis of AD. 履歴 登録 2023年3月6日 - ヘッダ(付随情報) 公開 2024年1月17日 - マップ公開 2024年1月17日 - 更新 2025年7月23日 - 現状 2025年7月23日 処理サイト : PDBc / 状態 : 公開
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