+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 5fn5 | ||||||
---|---|---|---|---|---|---|---|
タイトル | Cryo-EM structure of gamma secretase in class 3 of the apo- state ensemble | ||||||
![]() |
| ||||||
![]() | HYDROLASE | ||||||
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 / Noncanonical activation of NOTCH3 ...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 / 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 / growth factor receptor binding / T cell activation involved in immune response / skin morphogenesis / choline transport / NOTCH4 Activation and Transmission of Signal to the Nucleus / dorsal/ventral neural tube patterning / 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 / locomotion / brain morphogenesis / endoplasmic reticulum calcium ion homeostasis / nuclear outer membrane / amyloid precursor protein metabolic process / regulation of synaptic vesicle cycle / regulation of long-term synaptic potentiation / embryonic limb morphogenesis / regulation of postsynapse organization / smooth endoplasmic reticulum calcium ion homeostasis / cell fate specification / astrocyte activation involved in immune response / regulation of canonical Wnt signaling pathway / skeletal system morphogenesis / aggresome / myeloid cell homeostasis / azurophil granule membrane / G protein-coupled dopamine receptor signaling pathway / glutamate 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 cisterna membrane / ciliary rootlet / positive regulation of dendritic spine development / positive regulation of amyloid fibril formation / regulation of neuron projection development / protein glycosylation / positive regulation of receptor recycling / blood vessel development / mitochondrial transport / amyloid precursor protein catabolic process / heart looping / adult behavior / cerebral cortex cell migration / amyloid-beta formation / membrane protein ectodomain proteolysis / negative regulation of apoptotic signaling pathway / autophagosome assembly / EPH-ephrin mediated repulsion of cells / negative regulation of ubiquitin-dependent protein catabolic process / endopeptidase activator activity / neuron development / somitogenesis / smooth endoplasmic reticulum / hematopoietic progenitor cell differentiation / Nuclear signaling by ERBB4 / calcium ion homeostasis / T cell proliferation / regulation of synaptic transmission, glutamatergic / rough endoplasmic reticulum / Notch signaling pathway / Degradation of the extracellular matrix / neuron projection maintenance / NOTCH2 Activation and Transmission of Signal to the Nucleus / cerebellum development / cellular response to calcium ion / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus / thymus development / positive regulation of glycolytic process / epithelial cell proliferation / dendritic shaft / post-embryonic development / PDZ domain binding / astrocyte activation / NOTCH3 Activation and Transmission of Signal to the Nucleus / apoptotic signaling pathway / synapse organization / sarcolemma 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: 4.3 Å | ||||||
![]() | Bai, X.C. / Rajendra, E. / Yang, G.H. / Shi, Y.G. / Scheres, S.H.W. | ||||||
![]() | ![]() タイトル: Sampling the conformational space of the catalytic subunit of human γ-secretase. 著者: Xiao-chen Bai / Eeson Rajendra / Guanghui Yang / Yigong Shi / Sjors H W Scheres / ![]() ![]() 要旨: Human γ-secretase is an intra-membrane protease that cleaves many different substrates. Aberrant cleavage of Notch is implicated in cancer, while abnormalities in cutting amyloid precursor protein ...Human γ-secretase is an intra-membrane protease that cleaves many different substrates. Aberrant cleavage of Notch is implicated in cancer, while abnormalities in cutting amyloid precursor protein lead to Alzheimer's disease. Our previous cryo-EM structure of γ-secretase revealed considerable disorder in its catalytic subunit presenilin. Here, we describe an image classification procedure that characterizes molecular plasticity at the secondary structure level, and apply this method to identify three distinct conformations in our previous sample. In one of these conformations, an additional transmembrane helix is visible that cannot be attributed to the known components of γ-secretase. In addition, we present a γ-secretase structure in complex with the dipeptidic inhibitor N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester (DAPT). Our results reveal how conformational mobility in the second and sixth transmembrane helices of presenilin is greatly reduced upon binding of DAPT or the additional helix, and form the basis for a new model of how substrate enters the transmembrane domain. | ||||||
履歴 |
|
-
構造の表示
ムービー |
![]() |
---|---|
構造ビューア | 分子: ![]() ![]() |
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 242.8 KB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 187.9 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 | ![]() | 828.2 KB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 861.6 KB | 表示 | |
XML形式データ | ![]() | 38.3 KB | 表示 | |
CIF形式データ | ![]() | 59.1 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
-
リンク
-
集合体
登録構造単位 | ![]()
|
---|---|
1 |
|
-
要素
#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 / 詳細: A DRUG DAPT WAS BOUND TO GAMMA SECRETASE COMPLEX / 由来: (組換発現) ![]() ![]() |
---|---|
#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 / 詳細: A DRUG DAPT WAS BOUND TO GAMMA SECRETASE COMPLEX / 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 |
#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 / 詳細: A DRUG DAPT WAS BOUND TO GAMMA SECRETASE COMPLEX / 由来: (組換発現) ![]() ![]() |
#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 / 詳細: A DRUG DAPT WAS BOUND TO GAMMA SECRETASE COMPLEX / 由来: (組換発現) ![]() ![]() |
Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
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 |
-
試料調製
構成要素 | 名称: GAMMA SECRETASE / タイプ: COMPLEX |
---|---|
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: LIQUID ETHANE |
-
電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
---|---|
顕微鏡 | モデル: FEI TITAN KRIOS / 日付: 2014年10月25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 QUANTUM (4k x 4k) |
画像スキャン | デジタル画像の数: 2000 |
-
解析
対称性 | 点対称性: C1 (非対称) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3次元再構成 | 解像度: 4.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 66720 / Refinement type: HALF-MAPS REFINED INDEPENDENTLY / 対称性のタイプ: POINT | ||||||||||||
精密化 | 最高解像度: 4.3 Å | ||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 4.3 Å
|