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基本情報
登録情報 | データベース: PDB / ID: 5zcs | |||||||||||||||
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タイトル | 4.9 Angstrom Cryo-EM structure of human mTOR complex 2 | |||||||||||||||
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![]() | GENE REGULATION / Cryo-EM structure human mTORC2 | |||||||||||||||
機能・相同性 | ![]() RNA polymerase III type 2 promoter sequence-specific DNA binding / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / regulation of locomotor rhythm / T-helper 1 cell lineage commitment / positive regulation of pentose-phosphate shunt / regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / positive regulation of wound healing, spreading of epidermal cells / TORC2 signaling / TORC2 complex ...RNA polymerase III type 2 promoter sequence-specific DNA binding / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / regulation of locomotor rhythm / T-helper 1 cell lineage commitment / positive regulation of pentose-phosphate shunt / regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / positive regulation of wound healing, spreading of epidermal cells / TORC2 signaling / TORC2 complex / regulation of membrane permeability / cellular response to leucine starvation / negative regulation of lysosome organization / heart valve morphogenesis / TFIIIC-class transcription factor complex binding / TORC1 complex / voluntary musculoskeletal movement / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / regulation of cellular response to oxidative stress / calcineurin-NFAT signaling cascade / regulation of osteoclast differentiation / RNA polymerase III type 3 promoter sequence-specific DNA binding / positive regulation of keratinocyte migration / regulation of lysosome organization / phosphatidic acid binding / MTOR signalling / Amino acids regulate mTORC1 / cellular response to nutrient / cellular response to L-leucine / energy reserve metabolic process / regulation of autophagosome assembly / Energy dependent regulation of mTOR by LKB1-AMPK / TORC1 signaling / ruffle organization / negative regulation of Ras protein signal transduction / serine/threonine protein kinase complex / embryo development ending in birth or egg hatching / phosphatidylinositol-3,4-bisphosphate binding / cellular response to methionine / negative regulation of cell size / positive regulation of ubiquitin-dependent protein catabolic process / cellular response to osmotic stress / phosphatidylinositol-3,5-bisphosphate binding / inositol hexakisphosphate binding / anoikis / negative regulation of protein localization to nucleus / cardiac muscle cell development / negative regulation of calcineurin-NFAT signaling cascade / regulation of myelination / regulation of establishment of cell polarity / positive regulation of transcription by RNA polymerase III / negative regulation of macroautophagy / Macroautophagy / positive regulation of myotube differentiation / regulation of cell size / lipid biosynthetic process / positive regulation of actin filament polymerization / Constitutive Signaling by AKT1 E17K in Cancer / germ cell development / TOR signaling / phosphatidylinositol-3,4,5-trisphosphate binding / behavioral response to pain / mTORC1-mediated signalling / oligodendrocyte differentiation / positive regulation of oligodendrocyte differentiation / positive regulation of translational initiation / CD28 dependent PI3K/Akt signaling / positive regulation of TOR signaling / HSF1-dependent transactivation / regulation of macroautophagy / enzyme-substrate adaptor activity / response to amino acid / 'de novo' pyrimidine nucleobase biosynthetic process / positive regulation of epithelial to mesenchymal transition / heart morphogenesis / vascular endothelial cell response to laminar fluid shear stress / neuronal action potential / positive regulation of lipid biosynthetic process / cellular response to nutrient levels / positive regulation of lamellipodium assembly / regulation of cellular response to heat / cardiac muscle contraction / phagocytic vesicle / T cell costimulation / positive regulation of stress fiber assembly / phosphatidylinositol-4,5-bisphosphate binding / positive regulation of endothelial cell proliferation / cytoskeleton organization / substantia nigra development / endomembrane system / negative regulation of autophagy / negative regulation of insulin receptor signaling pathway / cellular response to amino acid starvation / cellular response to starvation / positive regulation of glycolytic process / positive regulation of translation / protein serine/threonine kinase activator activity / regulation of signal transduction by p53 class mediator / Regulation of PTEN gene transcription / VEGFR2 mediated vascular permeability 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: 4.9 Å | |||||||||||||||
![]() | Chen, X. / Liu, M. / Tian, Y. / Wang, H. / Wang, J. / Xu, Y. | |||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM structure of human mTOR complex 2. 著者: Xizi Chen / Mengjie Liu / Yuan Tian / Jiabei Li / Yilun Qi / Dan Zhao / Zihan Wu / Min Huang / Catherine C L Wong / Hong-Wei Wang / Jiawei Wang / Huirong Yang / Yanhui Xu / ![]() 要旨: Mechanistic target of rapamycin (mTOR) complex 2 (mTORC2) plays an essential role in regulating cell proliferation through phosphorylating AGC protein kinase family members, including AKT, PKC and ...Mechanistic target of rapamycin (mTOR) complex 2 (mTORC2) plays an essential role in regulating cell proliferation through phosphorylating AGC protein kinase family members, including AKT, PKC and SGK1. The functional core complex consists of mTOR, mLST8, and two mTORC2-specific components, Rictor and mSin1. Here we investigated the intermolecular interactions within mTORC2 complex and determined its cryo-electron microscopy structure at 4.9 Å resolution. The structure reveals a hollow rhombohedral fold with a 2-fold symmetry. The dimerized mTOR serves as a scaffold for the complex assembly. The N-terminal half of Rictor is composed of helical repeat clusters and binds to mTOR through multiple contacts. mSin1 is located close to the FRB domain and catalytic cavity of mTOR. Rictor and mSin1 together generate steric hindrance to inhibit binding of FKBP12-rapamycin to mTOR, revealing the mechanism for rapamycin insensitivity of mTORC2. The mTOR dimer in mTORC2 shows more compact conformation than that of mTORC1 (rapamycin sensitive), which might result from the interaction between mTOR and Rictor-mSin1. Structural comparison shows that binding of Rictor and Raptor (mTORC1-specific component) to mTOR is mutually exclusive. Our study provides a basis for understanding the assembly of mTORC2 and a framework to further characterize the regulatory mechanism of mTORC2 pathway. | |||||||||||||||
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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 | ![]() | 1.1 MB | 表示 | ![]() |
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PDB形式 | ![]() | 906.2 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-検証レポート
文書・要旨 | ![]() | 830.6 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 858.4 KB | 表示 | |
XML形式データ | ![]() | 148.2 KB | 表示 | |
CIF形式データ | ![]() | 234.6 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: 289257.969 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 参照: UniProt: P42345, non-specific serine/threonine protein kinase #2: タンパク質 | 分子量: 35910.090 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: 175142.500 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: タンパク質 | 分子量: 55158.477 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 配列の詳細 | 1. FOR ENTITY 3 (CHAINS E/F), ENTIRE SEQUENCE HAS BEEN USED IN THE EXPERIMENT. HOWEVER, C-TERMINAL ...1. FOR ENTITY 3 (CHAINS E/F), ENTIRE SEQUENCE HAS BEEN USED IN THE EXPERIMENT | |
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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 mTOR Complex 2 / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 値: 1400 kDa/nm / 実験値: YES |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.4 |
試料 | 濃度: 1.5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 282 K |
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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 / Cs: 2.7 mm / C2レンズ絞り径: 100 µm |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 平均露光時間: 8 sec. / 電子線照射量: 50 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
画像スキャン | 動画フレーム数/画像: 32 / 利用したフレーム数/画像: 1-32 |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.13_2998: / 分類: 精密化 | ||||||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||||||
対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||||||
3次元再構成 | 解像度: 4.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 195353 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER / 空間: REAL | ||||||||||||||||||||||||||||
拘束条件 |
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