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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 | ||||||
要素 |
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キーワード | GENE REGULATION / TSC complex / Regulator of cell growth / GTPase-activating protein / Elongated arch-shaped fold | ||||||
| 機能・相同性 | 機能・相同性情報TSC1-TSC2 complex binding / TSC1-TSC2 complex / Inhibition of TSC complex formation by AKT (PKB) / memory T cell differentiation / 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 / activation of GTPase activity ...TSC1-TSC2 complex binding / TSC1-TSC2 complex / Inhibition of TSC complex formation by AKT (PKB) / memory T cell differentiation / 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 / activation of GTPase activity / response to growth factor / Energy dependent regulation of mTOR by LKB1-AMPK / ATPase inhibitor activity / regulation of stress fiber assembly / negative regulation of cell size / cardiac muscle cell differentiation / negative regulation of TOR signaling / regulation of small GTPase mediated signal transduction / TBC/RABGAPs / anoikis / cell projection organization / AKT phosphorylates targets in the cytosol / : / negative regulation of macroautophagy / Macroautophagy / positive chemotaxis / Constitutive Signaling by AKT1 E17K in Cancer / negative regulation of mitophagy / ciliary transition zone / regulation of endocytosis / negative regulation of Wnt signaling pathway / positive regulation of macroautophagy / positive regulation of GTPase activity / associative learning / positive regulation of focal adhesion assembly / protein folding chaperone complex / phosphatase binding / vesicle-mediated transport / myelination / negative regulation of TORC1 signaling / negative regulation of insulin receptor signaling pathway / lipid droplet / protein folding chaperone / Hsp70 protein binding / cellular response to starvation / positive regulation of protein ubiquitination / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / cell-matrix adhesion / GTPase activator activity / TP53 Regulates Metabolic Genes / adult locomotory behavior / hippocampus development / kidney development / neural tube closure / potassium ion transport / Hsp90 protein binding / cerebral cortex development / response to insulin / synapse organization / small GTPase binding / endocytosis / protein import into nucleus / intracellular protein localization / lamellipodium / heart development / protein-folding chaperone binding / cytoplasmic vesicle / cell cortex / adaptive immune response / lysosome / cell population proliferation / regulation of cell cycle / postsynaptic density / protein stabilization / ciliary basal body / negative regulation of cell population proliferation / lysosomal membrane / perinuclear region of cytoplasm / Golgi apparatus / protein homodimerization activity / protein-containing complex / membrane / nucleus / plasma membrane / cytoplasm / cytosol 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト) | ||||||
| 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 | ||||||
データ登録者 | Yang, H. / Yu, Z. / Chen, X. / Li, J. / Li, N. / Cheng, J. / Gao, N. / Yuan, H. / Ye, D. / Guan, K. / Xu, Y. | ||||||
引用 | ジャーナル: Nat Commun / 年: 2021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: Molmil Jmol/JSmol |
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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 | 7dl2.cif.gz | 583.7 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7dl2.ent.gz | 433 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7dl2.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/dl/7dl2 ftp://data.pdbj.org/pub/pdb/validation_reports/dl/7dl2 | HTTPS FTP |
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-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) Homo sapiens (ヒト) / 遺伝子: TSC1, KIAA0243, TSC / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q92574#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) Homo sapiens (ヒト) / 遺伝子: TSC2, TSC4 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P49815#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) Homo sapiens (ヒト) / 遺伝子: TBC1D7, TBC7, HSPC239 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q9P0N9#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) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト)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: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) |
| 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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 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 |
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万見について




Homo sapiens (ヒト)
引用

UCSF Chimera






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