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基本情報
登録情報 | データベース: PDB / ID: 5a63 | ||||||||||||
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タイトル | Cryo-EM structure of the human gamma-secretase complex at 3.4 angstrom resolution. | ||||||||||||
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![]() | HYDROLASE / CRYO-EM / HUMAN GAMMA-SECRETASE / MEMBRANE PROTEIN | ||||||||||||
機能・相同性 | ![]() 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 / skin morphogenesis / T cell activation involved in immune response / 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 / Notch signaling pathway / Degradation of the extracellular matrix / 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 | ||||||||||||
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: 3.4 Å | ||||||||||||
![]() | Bai, X. / Yan, C. / Yang, G. / Lu, P. / Ma, D. / Sun, L. / Zhou, R. / Scheres, S.H.W. / Shi, Y. | ||||||||||||
![]() | ![]() タイトル: An atomic structure of human γ-secretase. 著者: Xiao-Chen Bai / Chuangye Yan / Guanghui Yang / Peilong Lu / Dan Ma / Linfeng Sun / Rui Zhou / Sjors H W Scheres / Yigong Shi / ![]() ![]() 要旨: Dysfunction of the intramembrane protease γ-secretase is thought to cause Alzheimer's disease, with most mutations derived from Alzheimer's disease mapping to the catalytic subunit presenilin 1 (PS1) ...Dysfunction of the intramembrane protease γ-secretase is thought to cause Alzheimer's disease, with most mutations derived from Alzheimer's disease mapping to the catalytic subunit presenilin 1 (PS1). Here we report an atomic structure of human γ-secretase at 3.4 Å resolution, determined by single-particle cryo-electron microscopy. Mutations derived from Alzheimer's disease affect residues at two hotspots in PS1, each located at the centre of a distinct four transmembrane segment (TM) bundle. TM2 and, to a lesser extent, TM6 exhibit considerable flexibility, yielding a plastic active site and adaptable surrounding elements. The active site of PS1 is accessible from the convex side of the TM horseshoe, suggesting considerable conformational changes in nicastrin extracellular domain after substrate recruitment. Component protein APH-1 serves as a scaffold, anchoring the lone transmembrane helix from nicastrin and supporting the flexible conformation of PS1. Ordered phospholipids stabilize the complex inside the membrane. Our structure serves as a molecular basis for mechanistic understanding of γ-secretase function. | ||||||||||||
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 | 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 | ![]() | 270.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 211.6 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 | ![]() | 1.5 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.5 MB | 表示 | |
XML形式データ | ![]() | 49.9 KB | 表示 | |
CIF形式データ | ![]() | 70.9 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 | ![]() 2677M ![]() 2678M ![]() 3061MC 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 | |
電子顕微鏡画像生データ | ![]() Data #1: Unaligned multi-frame micrographs of human gamma-secretase [micrographs - multiframe]) |
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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: 12038.029 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-糖 , 3種, 11分子 
#5: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #6: 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 | #7: 糖 | ChemComp-NAG / |
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-非ポリマー , 1種, 2分子 
#8: 化合物 |
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-詳細
Has protein modification | 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 / タイプ: COMPLEX |
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緩衝液 | 名称: 25 MM HEPES, PH 7.4, 150 MM NACL AND AMPHIPOL A8-35 / pH: 7.4 / 詳細: 25 MM HEPES, PH 7.4, 150 MM NACL AND AMPHIPOL A8-35 |
試料 | 濃度: 6 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | 詳細: HOLEY CARBON |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE 詳細: VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 100, TEMPERATURE- 85, INSTRUMENT- FEI VITROBOT MARK IV, METHOD- BLOT FOR 4 SECONDS BEFORE PLUNGING, |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Tecnai F30 / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TECNAI F30 / 日付: 2014年10月2日 |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 81000 X / 倍率(補正後): 35714 X / 最大 デフォーカス(公称値): 3200 nm / 最小 デフォーカス(公称値): 700 nm / Cs: 2.7 mm |
試料ホルダ | 温度: 85 K |
撮影 | 電子線照射量: 38 e/Å2 / フィルム・検出器のモデル: GATAN K2 (4k x 4k) |
放射波長 | 相対比: 1 |
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解析
EMソフトウェア |
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CTF補正 | 詳細: EACH PARTICLE | ||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||
3次元再構成 | 解像度: 3.4 Å / 粒子像の数: 159549 倍率補正: CROSS- -CORRELATION DENSITIES WITHIN SPHERICAL SHELL 詳細: SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3061. (DEPOSITION ID: 13527). 対称性のタイプ: POINT | ||||||||||||
精密化 | 最高解像度: 3.4 Å | ||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 3.4 Å
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