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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: 7dl2 | ||||||
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タイトル | Cryo-EM structure of human TSC complex | ||||||
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![]() | GENE REGULATION / TSC complex / Regulator of cell growth / GTPase-activating protein / Elongated arch-shaped fold | ||||||
機能・相同性 | ![]() memory T cell differentiation / TSC1-TSC2 complex binding / TSC1-TSC2 complex / Inhibition of TSC complex formation by PKB / regulation of insulin receptor signaling pathway / cellular response to decreased oxygen levels / negative regulation of cilium assembly / regulation of cell-matrix adhesion / negative regulation of ATP-dependent activity / ATPase inhibitor activity ...memory T cell differentiation / TSC1-TSC2 complex binding / TSC1-TSC2 complex / Inhibition of TSC complex formation by PKB / regulation of insulin receptor signaling pathway / cellular response to decreased oxygen levels / negative regulation of cilium assembly / regulation of cell-matrix adhesion / negative regulation of ATP-dependent activity / ATPase inhibitor activity / cardiac muscle cell differentiation / cell projection organization / Energy dependent regulation of mTOR by LKB1-AMPK / response to growth factor / negative regulation of cell size / regulation of stress fiber assembly / activation of GTPase activity / negative regulation of TOR signaling / anoikis / regulation of small GTPase mediated signal transduction / negative regulation of mitophagy / protein folding chaperone complex / TBC/RABGAPs / AKT phosphorylates targets in the cytosol / negative regulation of macroautophagy / Macroautophagy / positive chemotaxis / D-glucose import / Constitutive Signaling by AKT1 E17K in Cancer / negative regulation of Wnt signaling pathway / associative learning / regulation of endocytosis / positive regulation of macroautophagy / positive regulation of focal adhesion assembly / phosphatase binding / negative regulation of insulin receptor signaling pathway / vesicle-mediated transport / negative regulation of TORC1 signaling / lipid droplet / phosphatidylinositol 3-kinase/protein kinase B signal transduction / protein folding chaperone / myelination / Hsp70 protein binding / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / GTPase activator activity / positive regulation of GTPase activity / insulin-like growth factor receptor signaling pathway / ciliary basal body / adult locomotory behavior / cellular response to starvation / hippocampus development / cell-matrix adhesion / positive regulation of protein ubiquitination / kidney development / TP53 Regulates Metabolic Genes / negative regulation of protein kinase activity / neural tube closure / response to insulin / Hsp90 protein binding / synapse organization / potassium ion transport / cerebral cortex development / small GTPase binding / endocytosis / protein import into nucleus / protein localization / lamellipodium / protein-folding chaperone binding / heart development / cell cortex / cytoplasmic vesicle / adaptive immune response / cell population proliferation / lysosome / regulation of cell cycle / protein stabilization / postsynaptic density / lysosomal membrane / negative regulation of cell population proliferation / perinuclear region of cytoplasm / Golgi apparatus / protein homodimerization activity / protein-containing complex / nucleus / membrane / plasma membrane / cytosol / cytoplasm 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: 4.4 Å | ||||||
![]() | Yang, H. / Yu, Z. / Chen, X. / Li, J. / Li, N. / Cheng, J. / Gao, N. / Yuan, H. / Ye, D. / Guan, K. / Xu, Y. | ||||||
![]() | ![]() タイトル: Structural insights into TSC complex assembly and GAP activity on Rheb. 著者: Huirong Yang / Zishuo Yu / Xizi Chen / Jiabei Li / Ningning Li / Jiaxuan Cheng / Ning Gao / Hai-Xin Yuan / Dan Ye / Kun-Liang Guan / Yanhui Xu / ![]() ![]() 要旨: Tuberous sclerosis complex (TSC) integrates upstream stimuli and regulates cell growth by controlling the activity of mTORC1. TSC complex functions as a GTPase-activating protein (GAP) towards small ...Tuberous sclerosis complex (TSC) integrates upstream stimuli and regulates cell growth by controlling the activity of mTORC1. TSC complex functions as a GTPase-activating protein (GAP) towards small GTPase Rheb and inhibits Rheb-mediated activation of mTORC1. Mutations in TSC genes cause tuberous sclerosis. In this study, the near-atomic resolution structure of human TSC complex reveals an arch-shaped architecture, with a 2:2:1 stoichiometry of TSC1, TSC2, and TBC1D7. This asymmetric complex consists of two interweaved TSC1 coiled-coil and one TBC1D7 that spans over the tail-to-tail TSC2 dimer. The two TSC2 GAP domains are symmetrically cradled within the core module formed by TSC2 dimerization domain and central coiled-coil of TSC1. Structural and biochemical analyses reveal TSC2 GAP-Rheb complimentary interactions and suggest a catalytic mechanism, by which an asparagine thumb (N1643) stabilizes γ-phosphate of GTP and accelerate GTP hydrolysis of Rheb. Our study reveals mechanisms of TSC complex assembly and GAP activity. | ||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 583.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 433 KB | 表示 | ![]() |
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-検証レポート
文書・要旨 | ![]() | 926.4 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1 MB | 表示 | |
XML形式データ | ![]() | 95.5 KB | 表示 | |
CIF形式データ | ![]() | 143.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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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
#1: タンパク質 | 分子量: 129945.367 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #2: タンパク質 | 分子量: 188182.312 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: タンパク質 | | 分子量: 30911.129 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: タンパク質 | | 分子量: 22230.297 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: The author does not know what chain F is derived from. 由来: (組換発現) ![]() ![]() 配列の詳細 | The author does not know the sequence of chain F. | |
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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: Cryo-EM structure of human TSC complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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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 |
撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k 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: 4.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 131022 / 対称性のタイプ: POINT |